WO2024088298A1 - 用于烯烃聚合的固体催化剂组分及其制备方法和用途 - Google Patents
用于烯烃聚合的固体催化剂组分及其制备方法和用途 Download PDFInfo
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- WO2024088298A1 WO2024088298A1 PCT/CN2023/126424 CN2023126424W WO2024088298A1 WO 2024088298 A1 WO2024088298 A1 WO 2024088298A1 CN 2023126424 W CN2023126424 W CN 2023126424W WO 2024088298 A1 WO2024088298 A1 WO 2024088298A1
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F110/00—Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F110/04—Monomers containing three or four carbon atoms
- C08F110/06—Propene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F10/04—Monomers containing three or four carbon atoms
- C08F10/06—Propene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
- C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
- C08F4/62—Refractory metals or compounds thereof
- C08F4/64—Titanium, zirconium, hafnium or compounds thereof
- C08F4/647—Catalysts containing a specific non-metal or metal-free compound
- C08F4/649—Catalysts containing a specific non-metal or metal-free compound organic
- C08F4/6494—Catalysts containing a specific non-metal or metal-free compound organic containing oxygen
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
- C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
- C08F4/62—Refractory metals or compounds thereof
- C08F4/64—Titanium, zirconium, hafnium or compounds thereof
- C08F4/647—Catalysts containing a specific non-metal or metal-free compound
- C08F4/649—Catalysts containing a specific non-metal or metal-free compound organic
- C08F4/6497—Catalysts containing a specific non-metal or metal-free compound organic containing phosphorus
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
- C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
- C08F4/62—Refractory metals or compounds thereof
- C08F4/64—Titanium, zirconium, hafnium or compounds thereof
- C08F4/65—Pretreating the metal or compound covered by group C08F4/64 before the final contacting with the metal or compound covered by group C08F4/44
- C08F4/652—Pretreating with metals or metal-containing compounds
- C08F4/654—Pretreating with metals or metal-containing compounds with magnesium or compounds thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2410/00—Features related to the catalyst preparation, the catalyst use or to the deactivation of the catalyst
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2410/00—Features related to the catalyst preparation, the catalyst use or to the deactivation of the catalyst
- C08F2410/06—Catalyst characterized by its size
Definitions
- the invention relates to the field of catalysts for olefin polymerization, and in particular to a solid catalyst component for olefin polymerization and a preparation method and application thereof.
- Ziegler-Natta type spherical catalysts are widely used in annular polypropylene process units for the production of propylene homopolymers, propylene/ethylene (or butene) random copolymers and impact copolymers. They have the characteristics of high polymerization activity, high stereospecificity and high polymer particle regularity. Spherical catalysts are also used in gas phase polypropylene and polyethylene processes with prepolymerization units, such as SHPERIZONE and SHPERILENE process units, for the production of polypropylene and polyethylene.
- US9453088B2 discloses a prepolymerization catalyst for olefin polymerization, which has an average particle size of less than 30 ⁇ m, a prepolymerization multiple of less than 50 g polymer/g catalyst, and contains a catalyst component of two electron donors, 1,3-diether and aromatic ester.
- the preparation method is to first prepare a spherical catalyst containing two electron donors, 1,3-diether and aromatic ester, and then prepolymerize with an olefin of 2-10 carbon atoms to obtain a prepolymerization catalyst.
- CN1421468A discloses a method for propylene polymerization or copolymerization, which is to prepolymerize a Ziegler-Natta catalyst with ethylene or ⁇ -olefin at -10°C to 80°C, control the prepolymerization multiple to 6-50000 times, and then carry out propylene polymerization.
- US7329714B2 discloses a method for polypropylene containing prepolymerization, which is to prepolymerize a Ziegler-Zatta catalyst with propylene or 4-methyl-1-pentene at 0-40°C, and then carry out propylene polymerization.
- the purpose of the present invention is to provide a solid catalyst component for olefin polymerization, a preparation method and use thereof, in order to solve the problem that the polymerization activity of the existing Ziegler-Zatta type prepolymerization catalyst decays rapidly due to prolonged storage time.
- the present invention provides a solid catalyst component for olefin polymerization, the solid catalyst component comprising magnesium, titanium, halogen, poly- ⁇ -olefin and internal electron donor, wherein the Ti2p spectrum obtained by XPS analysis of the solid catalyst component is peak separated by Gauss-Lorentz peak fitting, and the peak separation result shows that the spectrum peak of the Ti2p 3/2 orbit has at least three characteristic peaks at the electron binding energy of 459.9eV-454.9eV;
- the Gaussian-Lorentz peak fitting method is: setting the Lorentz to Gaussian ratio to 30%, the difference between the electron binding energy of the spectrum peak of the Ti2p 1/2 orbit and the electron binding energy of the spectrum peak of the Ti2p 3/2 orbit is 5.9 eV, the half-width of the spectrum peak of the Ti2p 1/2 orbit is 1.7 times the half-width of the spectrum peak of the Ti2p 3/2 orbit, the peak height of the spectrum peak of the Ti2p 1/2 orbit is 0.28 times the peak height of the spectrum peak of the Ti2p 3/2 orbit, and each characteristic peak of the spectrum peak of the Ti2p 3/2 orbit has the same half-width.
- the present invention provides a method for preparing a solid catalyst component for olefin polymerization, the method comprising:
- a catalyst component A in the presence of an inert solvent, a catalyst component A, an alkyl aluminum and an external electron donor compound are contacted to react;
- the catalyst component A contains titanium element, magnesium element, halogen and an internal electron donor;
- step (2) mixing the reaction system obtained in step (1) with an ⁇ -olefin to carry out a polymerization reaction;
- step (3) removing the unreacted ⁇ -olefin in step (2), and adding hydrogen to the resulting reaction system to carry out a reaction.
- the present invention provides a solid catalyst component prepared by the method described above.
- the present invention provides a catalyst system for olefin polymerization, which comprises the solid catalyst component described above and/or the solid catalyst component prepared by the method described above, alkyl aluminum and an optional external electron donor compound or its reaction product.
- the present invention provides the use of the solid catalyst component described above and/or the solid catalyst component prepared by the method described above and/or the catalyst system described above in olefin polymerization.
- the present invention provides a method for olefin polymerization, which comprises: subjecting olefin to polymerization reaction in the presence of the solid catalyst component described above and/or the solid catalyst component prepared by the method described above and/or the catalyst system described above.
- the present invention has the following advantages: the solid catalyst component provided by the present invention belongs to a Ziegler-Zatta type prepolymerization catalyst, which has the characteristics that the polymerization activity decays slowly with the extension of storage time, and the solid catalyst component is used in the polymer obtained by polymerization.
- the solid catalyst component has the advantage of low fine powder content, and is suitable not only for olefin polymerization devices with a prepolymerization operation unit, but also for polyolefin devices without a prepolymerization operation unit.
- FIG1 is an XRD graph of catalyst E1 of Example 1 (above) and catalyst CE1 of Comparative Example 1 (below);
- FIG2 is an XPS peak fitting diagram of catalyst E1 of Example 1 (upper part) and catalyst CE1 of Comparative Example 1 (lower part).
- the present invention provides a solid catalyst component for olefin polymerization, the solid catalyst component comprising magnesium, titanium, halogen, poly- ⁇ -olefin and internal electron donor, wherein the Ti2p spectrum obtained by XPS analysis of the solid catalyst component is peak separated by Gauss-Lorentz peak fitting, and the peak separation result shows that the spectrum peak of the Ti2p 3/2 orbit has at least three characteristic peaks at an electron binding energy of 459.9eV-454.9eV;
- the Gaussian-Lorentz peak fitting method is: setting the Lorentz to Gaussian ratio to 30%, the difference between the electron binding energy of the spectrum peak of the Ti2p 1/2 orbit and the electron binding energy of the spectrum peak of the Ti2p 3/2 orbit is 5.9 eV, the half-width of the spectrum peak of the Ti2p 1/2 orbit is 1.7 times the half-width of the spectrum peak of the Ti2p 3/2 orbit, the peak height of the spectrum peak of the Ti2p 1/2 orbit is 0.28 times the peak height of the spectrum peak of the Ti2p 3/2 orbit, and each characteristic peak of the spectrum peak of the Ti2p 3/2 orbit has the same half-width.
- the ratio of the half - width of the spectral peak of the Ti2p 1/2 orbital to the half-width of the spectral peak of the Ti2p 3/2 orbital refers to the "ratio of the half-widths between the spectral peak of the Ti2p 1/2 orbital and the characteristic peaks that appear in pairs in the spectral peak of the Ti2p 3/2 orbital"; the ratio of the peak height of the spectral peak of the Ti2p 1/2 orbital to the peak height of the spectral peak of the Ti2p 3/2 orbital refers to the "ratio of the peak heights between the spectral peak of the Ti2p 1/2 orbital and the characteristic peaks that appear in pairs in the spectral peak of the Ti2p 3/2 orbital".
- the characteristic peaks of the spectrum peak of Ti2p 3/2 orbit in the XPS spectrum of the solid catalyst component are named as the first characteristic peak, the second characteristic peak, the third characteristic peak, etc.
- the characteristic peaks of the spectrum peak of Ti2p 1/2 orbit are named as the I characteristic peak, the II characteristic peak, the III characteristic peak, etc.
- the difference between the electron binding energy of the spectrum peak of Ti2p 1/2 orbit and the electron binding energy of the spectrum peak of Ti2p 3/2 orbit refers to "the difference in electron binding energy between the first characteristic peak and the I characteristic peak, the difference in electron binding energy between the second characteristic peak and the II characteristic peak, and the difference in electron binding energy between the third characteristic peak and the III characteristic peak are all 5.9 eV".
- the ratio of the half-width of the spectrum peak of Ti2p 1/2 orbit to the half-width of the spectrum peak of Ti2p 3/2 orbit, the peak height of the spectrum peak of Ti2p 1/2 orbit is the ratio of the half-width of the spectrum peak of Ti2p 3/2 orbit to the half-width of the spectrum peak of Ti2p 1/2 orbit, and the peak height of the spectrum peak of Ti2p 3/2 orbit is The same is true for the ratio of the peak heights of the spectrum peaks of the channel.
- the electron binding energies of Ti2p of titanium and C1s of carbon are measured by X-ray photoelectron spectrometer (XPS).
- XPS uses a monochromatic Al K ⁇ ray source and an electron neutralization gun to perform charge neutralization until the sample surface charge is completely neutralized.
- the high-resolution spectrum is obtained under the conditions of a pass energy of 20eV and a step length of 0.05eV, and the analysis area is 500 ⁇ m2 .
- XPS test sample preparation method Use an infrared tablet press to press the sample on a non-conductive double-sided tape in a glove box, transfer the pressed sample to an air-sensitive sample protection table for sealed storage, and then quickly transfer the sensitive sample protection table to the XPS sample preparation room for evacuation. After the pressure in the preparation room drops below 10 -6 mbar, open the sealing cover of the sensitive sample protection table, and after the pressure in the preparation room drops below 10 -6 mbar, transfer the sample to the analysis room for XPS testing.
- the charge of the prepolymerized catalyst i.e., the solid catalyst component as described above
- the charge of the prepolymerized catalyst is calibrated based on the peak binding energy value of 284.80 eV of C1s of polypropylene or polyethylene contained in the catalyst.
- the Ti2p 3/2 electron binding energy in the XPS spectrum of the solid catalyst component has 3-5 characteristic peaks in the range of 459.9eV-454.9eV, for example, there are three characteristic peaks, four characteristic peaks, five characteristic peaks, etc. in the range of 459.9eV-454.9eV, and according to the electron binding energy from high to low, the characteristic peaks of the Ti2p 3/2 orbit in the XPS spectrum of the solid catalyst component are named as the first characteristic peak, the second characteristic peak, the third characteristic peak, the fourth characteristic peak, the fifth characteristic peak, etc.
- the Ti2p 3/2 electron binding energy in the XPS spectrum of the solid catalyst component has three characteristic peaks in the range of 459.9eV-454.9eV.
- the spectrum peak of the Ti2p 3/2 orbit of the solid catalyst component has three characteristic peaks at an electron binding energy of 459.9eV-454.9eV, and the three characteristic peaks are named as the first characteristic peak, the second characteristic peak, and the third characteristic peak in order according to the electron binding energy from high to low, the electron binding energy of the first characteristic peak is 459.9eV-458.97eV, the electron binding energy of the second characteristic peak is 458eV-457.45eV, and the electron binding energy of the third characteristic peak is 456.2eV-454.9eV.
- the naming of the three characteristic peaks does not limit the technical solution of the present invention, but is only to distinguish different characteristic peaks for better description.
- the electron binding energy of the spectrum peak of the Ti2p 1/2 orbit of the solid catalyst component is 467eV-460eV.
- the Ti2p spectrum obtained by XPS analysis of the solid catalyst component is peak-split by Gauss-Lorentz peak-split fitting, the spectrum peak of the Ti2p 1/2 orbit and the spectrum peak of the Ti2p 3/2 orbit have the same number of characteristic peaks.
- the titanium element has a Ti 2p 3/2 electron binding energy of 455.40 eV to 455.85 eV, for example, 455.42 eV, 455.44 eV, 455.45 eV, 455.46 eV, 455.47 eV, 455.50 eV, 455.54 eV, 455.62 eV, 455.63 eV, 455.64 eV, 455.65 eV, 455.66 eV, 455.67 eV, 455.68 eV, 455.69 eV, 455.70 eV, 455.71 eV, 455.72 eV, 455.79 eV, 455.80 eV, 455.81 eV, 455.82 eV, or 455.83 eV. 3/2 electron binding energy.
- the titanium element in addition to having a Ti 2p 3/2 electron binding energy of 456.20 eV-454.90 eV, preferably 455.40 eV-455.85 eV, the titanium element also has a Ti 2p 3/2 electron binding energy of 458.97 eV-459.25 eV and/or 457.45 eV-458.00 eV.
- the titanium element has a Ti2p 3/2 electron binding energy of 459.09eV-459.19eV and/or 457.60-457.75eV, for another example, the titanium element has a Ti2p 3/2 electron binding energy of 459.05eV-459.15eV and/or 457.45eV-457.55eV, for another example, the titanium element has a Ti2p 3/2 electron binding energy of 458.97eV-459.25eV and/or 457.53-458.00eV.
- the peak area of the third characteristic peak accounts for 5-20%, preferably 5-15%, of the sum of the peak areas of the first characteristic peak, the second characteristic peak and the third characteristic peak. (For example, 5%, 6%, 7%, 8%, 9%, 10%, 11%, 12%, 13%, 14%, 15%, and the range consisting of any two of the above points).
- the peak area of the first characteristic peak, the peak area of the second characteristic peak, and the peak area of the third characteristic peak are respectively recorded as S 1 , S 2 , and S 3 .
- the solid catalyst component does not contain detectable amounts of Group IVB elements other than Ti.
- the solid catalyst component does not contain detectable amounts of Zr and/or Hf.
- the poly- ⁇ -olefin is selected from poly-C 2 -C 10 olefins, preferably one or more of polyethylene, polypropylene, polybutene, polyoctene and polyisoprene, more preferably polypropylene.
- the internal electron donor comprises at least one of a diol ester compound, a 1,3-diether compound and a carboxylic acid ester.
- the diol ester compound has a chemical structure shown in formula (1):
- R1 - R6 are the same or different, and are each independently selected from hydrogen, amino, C1 - C10 straight-chain alkyl, C3 - C10 branched-chain alkyl, C3 - C10 cycloalkyl, C6 - C10 aryl, C7 - C10 alkaryl and C7 - C10 aralkyl; two or more groups among R1 - R6 may be optionally bonded to each other to form one or more condensed ring structures; R7 and R8 are the same or different, and are each independently selected from C1 - C10 straight-chain alkyl, C3 - C10 branched-chain alkyl, C3 - C20 cycloalkyl, C6 - C20 aryl, C7 - C20 alkaryl and C7 - C20 aralkyl.
- R 1 -R 6 are the same or different, and are independently selected from hydrogen, amino, C 1 -C 6 straight-chain alkyl, C 3 -C 8 branched alkyl, C 3 -C 10 cycloalkyl, C 6 -C 10 aryl, C 7 -C 10 alkaryl and C 7 -C 10 aralkyl; preferably, two or more groups among R 1 -R 6 are optionally bonded to each other to form one or more condensed ring structures.
- R7 and R8 are the same or different, and are independently selected from C1 - C6 straight-chain alkyl, C3 - C10 branched-chain alkyl, C3 - C10 cycloalkyl, C6 - C10 aryl, C7 - C10 alkaryl and C7 - C10 aralkyl.
- the diol ester compound is selected from 1,3-propylene glycol dibenzoate, 2-methyl-1,3-propylene glycol dibenzoate, 2-ethyl-1,3-propylene glycol dibenzoate, 2,2-dimethyl-1,3-propylene glycol dibenzoate, 1,3-diphenyl-1,3-propylene glycol dibenzoate, 1,3-diphenyl-1,3-propylene glycol dipropionate, 1,3-Diphenyl-2-methyl-1,3-propanediol dipropionate, 1,3-diphenyl-2-methyl-1,3-propanediol diacetate, 1,3-diphenyl-2,2-dimethyl-1,3-propanediol dibenzoate, 1,3-diphenyl-2,2-dimethyl-1,3-propanediol dipropionate, 1,3-di-tert-butyl-2-
- the 1,3-diether compound has a chemical structure shown in formula (2):
- R1 and R2 are the same or different and are each independently selected from hydrogen, a C1 - C20 straight-chain alkyl group, a C3 - C10 branched-chain alkyl group, a C3 - C20 cycloalkyl group, a C6 - C20 aryl group, a C7 - C20 aralkyl group and a C7 - C20 alkaryl group; R3 and R4 are the same or different and are each independently selected from a C1 - C10 alkyl group.
- R1 and R2 are the same or different, and are independently selected from hydrogen, a C1 - C10 straight-chain alkyl group, a C3 - C10 branched-chain alkyl group, a C3 - C10 cycloalkyl group, a C6 - C10 aryl group, a C7 - C20 aralkyl group and a C7 - C10 alkaryl group, and/or R3 and R4 are independently selected from a C1 - C6 alkyl group.
- the 1,3-diether compound is selected from 2-(2-ethylhexyl)-1,3-dimethoxypropane, 2-isopropyl-1,3-dimethoxypropane, 2-butyl-1,3-dimethoxypropane, 2-sec-butyl-1,3- dimethoxypropane, 2-cyclohexyl-1,3-dimethoxypropane, 2-phenyl-1,3-dimethoxypropane, 2-(2-phenylethyl)-1,3-dimethoxypropane, 2-(2-cyclohexylethyl)-1,3-dimethoxypropane, 2-(p-chlorophenyl)-1,3-dimethoxypropane, 2-(diphenylmethyl)-1,3-dimethoxypropane, 2,2-dicyclohexyl-1,3-dimethoxypropane, 2,2-dicyclopentyl-1
- the hydrogen on the benzene ring in the aryl group, alkylaryl group and/or aralkyl group may be optionally replaced by a halogen atom.
- the carboxylate is an aliphatic carboxylate and/or an aromatic carboxylate.
- the carboxylate is selected from at least one of monoaliphatic carboxylate, dialiphatic carboxylate, monoaluminum aromatic carboxylate and dialuminum aromatic carboxylate.
- aliphatic carboxylate refers to the carboxylate prepared by monoaluminum (or dialuminum) aliphatic carboxylic acid and aliphatic monohydric alcohol or aromatic monohydric alcohol
- aromatic carboxylate refers to the carboxylate prepared by monoaluminum (or dialuminum) aromatic carboxylic acid and aliphatic monohydric alcohol or aromatic monohydric alcohol.
- the carboxylate is selected from one or more of benzoate compounds, phthalate compounds and succinate compounds.
- the benzoate compound can be selected from one or more of methyl benzoate, ethyl benzoate and n-butyl benzoate.
- the phthalate compound may be selected from one or more of diethyl phthalate, diisobutyl phthalate, di-n-butyl phthalate, diisooctyl phthalate and di-n-octyl phthalate.
- the succinate compound can be selected from one or more of diethyl 2,3-diisopropylsuccinate, diisobutyl 2,3-diisopropylsuccinate, di-n-butyl 2,3-diisopropylsuccinate, dimethyl 2,3-diisopropylsuccinate, diisobutyl 2,2-dimethylsuccinate, diisobutyl 2-ethyl-2-methylsuccinate and diethyl 2-ethyl-2-methylsuccinate.
- the internal electron donor comprises an internal electron donor a and an internal electron donor
- the electron donor a and the internal electron donor b are:
- the internal electron donor a is selected from the diol ester compounds, and the internal electron donor b is selected from 1,3-diether compounds and optional carboxylic acid esters;
- the internal electron donor a is selected from the 1,3-diether compound, and the internal electron donor b is selected from the phosphate compound shown in (3);
- R5 , R6 and R7 are the same or different and are independently selected from C1 - C4 straight chain alkyl, C3 - C4 branched chain alkyl, C3 - C20 cycloalkyl, C6 - C20 aryl, C7 - C20 alkaryl and C7 - C20 aralkyl.
- R 5 , R 6 and R 7 are the same or different, and are independently selected from C 1 -C 4 straight-chain alkyl groups, C 3 -C 4 branched-chain alkyl groups, C 3 -C 10 cycloalkyl groups, C 6 -C 10 aryl groups, C 7 -C 10 alkylaryl groups and C 7 -C 10 aralkyl groups.
- the phosphate compound is selected from at least one of trimethyl phosphate, triethyl phosphate, tributyl phosphate, triphenyl phosphate, tricresyl phosphate, triisopropylphenyl phosphate, phenyl dimethyl phosphate, cresyl dibutyl phosphate, isopropylphenyl dimethyl phosphate, isopropylphenyl diethyl phosphate, isopropylphenyl dibutyl phosphate, phenyl ditolyl phosphate, phenyl diisopropylphenyl phosphate, p-cresyl dibutyl phosphate, m-cresyl dibutyl phosphate, p-cumyl dimethyl phosphate, p-cumyl diethyl phosphate, p-tert-butylphenyl dimethyl phosphate and o-cres
- the internal electron donor includes the internal electron donor a and the internal electron donor b
- the mass ratio of the internal electron donor a to the internal electron donor b can be 0.1: 1-1000: 1.
- the mass ratio of the internal electron donor a to the internal electron donor b can be 0.1: 1, 0.2: 1, 0.5: 1, 0.8: 1, 1: 1, 2: 1, 5: 1, 10: 1, 20: 1, 30: 1, 40: 1, 50: 1, 80: 1, 100: 1, 200: 1, 500: 1, 800: 1, 1000: 1 and ranges thereof.
- the solid catalyst component is spherical solid particles.
- the average particle size D 50 of the solid catalyst component is 5-150 ⁇ m.
- the average particle size D 50 of the solid catalyst component can be 5 ⁇ m, 10 ⁇ m, 20 ⁇ m, 30 ⁇ m, 40 ⁇ m, 50 ⁇ m, 60 ⁇ m, 70 ⁇ m, 80 ⁇ m, 100 ⁇ m, 120 ⁇ m, 150 ⁇ m or a range consisting of them.
- the average particle size D 50 of the solid catalyst component can be 20-80 ⁇ m.
- the average particle size D50 is measured using a Master Sizer 2000 laser particle size analyzer (manufactured by Malvern Instruments Ltd).
- the particle size distribution value (SPAN) of the solid catalyst component is 0.75-0.85.
- the test method of SPAN value is to use Masters Sizer 2000 particle size analyzer of Malvern Instruments Company of the United Kingdom to measure the carrier, and the dispersion medium is n-hexane.
- the particle size distribution value Span (D90-D10)/D50.
- the content of the poly- ⁇ -olefin is 0.1-89% by weight, preferably 1-50% by weight, and more preferably 9-35% by weight
- the content of the titanium element is 0.1-3.5% by weight, preferably 0.5-2.5% by weight, and more preferably 1.5-2.5% by weight
- the content of the magnesium element is 1-18% by weight, preferably 11-17% by weight
- the content of the halogen is 2-65% by weight, preferably 35-55% by weight
- the content of the internal electron donor is 0.6-15% by weight, preferably 1-10% by weight, and more preferably 6-10% by weight.
- the halogen is selected from one or more of fluorine, chlorine, bromine and iodine, preferably chlorine.
- the magnesium element and/or halogen source can be a carrier, and the carrier is preferably an alkoxy magnesium carrier, a magnesium chloride alcoholate spherical carrier or a spherical magnesium compound carrier.
- the type of the carrier is as described in the second aspect.
- the titanium element and/or halogen source may be titanium halide (eg titanium tetrachloride), wherein the type of the titanium halide is as described in the second aspect.
- titanium halide eg titanium tetrachloride
- G is the sample mass (g); VE is the amount of EDTA consumed (mL); NE is the equivalent number of EDTA solution; 24.31 is the atomic weight of magnesium.
- CA is the mass percentage of poly ⁇ -olefin in the solid catalyst component
- M1 and M2 are the mass (g) of the sample and the dry solid, respectively
- C1 is the mass percentage of poly ⁇ -olefin in the dry solid.
- the test method for the content of the internal electron donor in the solid catalyst component is: dissolve the sample with ethyl acetate and hydrochloric acid solution (concentration 2 mol/L), extract the internal electron donor, and analyze its content using a conventional liquid chromatograph.
- the solid catalyst component further contains alkyl aluminum and an external electron donor.
- the types and contents of the alkyl aluminum and the external electron donor can be selected with reference to the existing olefin prepolymerization catalyst. A small amount of alkyl aluminum and the external electron donor will remain in the polyolefin during the polymerization process known in the art, and the contents of the alkyl aluminum and the external electron donor are usually the residual amounts in the polyolefin; the types of the alkyl aluminum and the external electron donor are as described in the second aspect.
- the solid catalyst component of the present invention may contain other components besides the above components, such as an inert solvent, such as the inert solvent added during the preparation of the solid catalyst component described in the second aspect.
- an inert solvent such as the inert solvent added during the preparation of the solid catalyst component described in the second aspect.
- the present invention provides a method for preparing a solid catalyst component for olefin polymerization, the method comprising:
- the catalyst component A contains a titanium element, a magnesium element, a halogen and an internal electron donor;
- step (2) mixing the reaction system obtained in step (1) with an ⁇ -olefin to carry out a polymerization reaction;
- step (3) removing the unreacted ⁇ -olefin in step (2), and adding hydrogen to the resulting reaction system to carry out a reaction.
- the catalyst component A represents a catalyst that has not been prepolymerized
- the solid catalyst component represents a catalyst that has been prepolymerized
- the alkyl aluminum and the external electron donor compound can be selected with reference to the existing olefin prepolymerization catalyst, and the present invention has no particular limitation on this.
- the number of alkyl groups in the alkyl aluminum can be 1-3, and the number of carbon atoms in the alkyl group can be C 1 -C 8.
- the alkyl aluminum can be selected from one or more of triethyl aluminum, triisobutyl aluminum, tri-n-butyl aluminum, tri-n-hexyl aluminum and diethyl aluminum monochloride.
- the external electron donor compound can be selected from at least one of silicon-containing compounds, and the external electron donor compound can be selected from cyclohexylmethyldimethoxysilane, diisopropyldimethoxysilane, n-butyldimethoxysilane, diiso ... One or more of dimethoxysilane, diphenyldimethoxysilane, methyl-tert-butyldimethoxysilane and dicyclopentyldimethoxysilane.
- the molar ratio of the alkyl aluminum, the external electron donor compound and the amount of the catalyst component A calculated as titanium element can be 1-50:0.2-10:1.
- the molar ratio of the alkyl aluminum, the external electron donor compound and the amount of the catalyst component A calculated as titanium element can be 1:0.2:1, 5:0.2:1, 10:0.2:1, 15:0.2:1, 20:0.2:1, 30:0.2:1, 40:0.2:1, 50:0.2:1, 15:0.3:1, 15:0.5:1, 15:1:1, 15:2:1, 15:3:1, 15:4:1, 15:5:1, 15:20:1 or any range of values of the alkyl aluminum and the external electron donor compound in the above ratios.
- step (1) relative to 25g of catalyst component A, the amount of the alkyl aluminum is 1-30mmol, preferably 15-20mmol; the amount of the external electron donor compound is 0.01-10mmol, preferably 0.1-1mmol.
- the internal electron donor comprises at least one of a diol ester compound, a 1,3-diether compound and a carboxylic acid ester.
- the internal electron donor is as described in the first aspect and will not be described in detail here.
- the inert solvent can be selected with reference to the prior art.
- the inert solvent can be selected from one or more of hexane, heptane and decane.
- the amount of the inert solvent added is such that the mass concentration of the catalyst component A in the inert solvent can be 5-50 g/L.
- the reaction conditions include: the temperature can be 0-30°C, preferably 15-25°C; the time can be 1-30min, preferably 10-20min.
- the conditions of the polymerization reaction include: the temperature can be 0-50°C, preferably 15-25°C; the time can be 5-30min, preferably 10-20min.
- the reaction conditions include: the temperature can be 0-50°C, preferably 15-25°C; the time can be 5-30min, preferably 10-20min.
- the method for removing the unreacted ⁇ -olefin in step (2) can be a conventional method in the art, such as first venting the unreacted ⁇ -olefin and then replacing the residual ⁇ -olefin with an inactive gas. That is, step (3) includes: first venting the unreacted ⁇ -olefin in step (2), then replacing the residual ⁇ -olefin with an inactive gas, and then adding hydrogen to the resulting reaction system for reaction.
- the reactor is first replaced with an inert gas to place the reactor in an inert atmosphere, and then the raw materials are added to the reactor. This is well known in the art.
- the inert gas may be at least one of nitrogen, neon, argon and krypton.
- the number of times of inert gas replacement is not particularly limited and may be selected conventionally in the art, for example, 1 to 5 times.
- the amount of hydrogen added is controlled to maintain the reaction pressure at 0.01-1MPa, preferably 0.1-0.5MPa, and more preferably 0.2-0.3MPa.
- the pressure is generally Gauge.
- hydrogen can be added in the form of pure hydrogen or a mixed gas containing hydrogen.
- the mixed gas containing hydrogen can be composed of hydrogen and an inert gas, and the inert gas can be selected from at least one of nitrogen, helium, neon and argon.
- the present invention has no special requirements for the concentration of hydrogen in the mixed gas containing hydrogen, as long as the defined reaction pressure can be achieved.
- the concentration of hydrogen in the mixed gas containing hydrogen can be 0.1-100% by volume, for example, 20-100% by volume.
- step (3) further comprises a post-treatment step: subjecting the system obtained in step (3) to solid-liquid separation and drying treatment to obtain the solid catalyst component.
- the post-treatment step generally comprises: removing unreacted hydrogen, filtering to remove liquid or optionally washing with hexane 1-2 times to obtain a solid product; then drying the solid product under vacuum at 10-80°C to obtain the solid catalyst component.
- the vacuum drying can be implemented by a conventional vacuum pump, and the present invention has no special requirements for it.
- the ⁇ -olefin is selected from C 2 -C 10 olefins, preferably one or more selected from ethylene, propylene, butene, octene and isopentene, and more preferably the ⁇ -olefin is propylene.
- the mass ratio of the ⁇ -olefin to the catalyst component A can be 0.04-10: 1.
- the mass ratio of the ⁇ -olefin to the catalyst component A can be 0.04: 1, 0.05: 1, 0.08: 1, 0.1: 1, 0.2: 1, 0.3: 1, 0.4: 1, 0.5: 1, 0.6: 1, 0.7: 1, 0.8: 1, 0.9: 1, 1: 1, 2: 1, 3: 1, 4: 1, 5: 1, 6: 1, 7: 1, 8: 1, 9: 1, 10: 1 or a range thereof.
- the catalyst component A can be prepared according to the conventional method of the main catalyst in the olefin polymerization catalyst in the art, and the present invention is not particularly limited to this.
- it can be prepared by referring to the methods disclosed in patent applications WO2012034357A1, WO2012097680A1 and patents ZL03153152.0, ZL200410062291.3, ZL201310491641.7, ZL201310491393.6 and ZL201310491648.9.
- the catalyst component A may include or be a reaction product of titanium halide (such as titanium tetrachloride), a carrier and an internal electron donor.
- the carrier is preferably an alkoxy magnesium carrier, a magnesium chloride alcoholate spherical carrier or a spherical magnesium compound carrier.
- the average particle size of the carrier is 5-150 ⁇ m, more preferably 20-80 ⁇ m, and more preferably 30-60 ⁇ m.
- the catalyst component A can be prepared by referring to the methods disclosed in patents WO2012034357A1 and WO2012097680A1. More specifically, the carrier is an alkoxy magnesium carrier, and the catalyst component A is a reaction product of a titanium halide (e.g., titanium tetrachloride), an alkoxy magnesium carrier, and the internal electron donor in an inert solvent.
- the general formula of the alkoxy magnesium carrier is Mg(OEt) 2-kl (OEH) k (OiPr) l , wherein Et is ethyl, EH is 2-ethylhexyl, iPr is isopropyl, and k and l are each independently 0-0.5.
- the catalyst component A can be prepared by the following steps: reacting alkoxymagnesium with titanium halide (e.g. titanium tetrachloride) and the internal electron donor such as carboxylic acid ester in the presence of an inert solvent.
- the reaction temperature is usually -40-200°C, preferably -20-150°C; the reaction time is usually 1 minute to 20 hours, preferably 5 minutes to 8 hours.
- the solid obtained above is washed with an inert solvent to obtain a solid catalyst component, wherein the inert solvent is preferably toluene.
- the washing time is usually 1-24 hours, preferably 6-10 hours.
- the solid catalyst component may be stored in a dry state or in an inert solvent.
- the catalyst component A can be prepared by referring to the methods disclosed in patents ZL03153152.0 and ZL200410062291.3. More specifically, the carrier is a spherical carrier of magnesium chloride alcoholate, and the catalyst component A is a reaction product of titanium halide (e.g., titanium tetrachloride), spherical magnesium chloride alcoholate and the internal electron donor such as carboxylic acid ester.
- the carrier is a spherical carrier of magnesium chloride alcoholate
- the catalyst component A is a reaction product of titanium halide (e.g., titanium tetrachloride), spherical magnesium chloride alcoholate and the internal electron donor such as carboxylic acid ester.
- the general formula of the spherical magnesium chloride alcoholate may be Mg(R′OH) i (H 2 O) j , wherein R′ is methyl, ethyl, n-propyl or isopropyl, i is 1.5-3.5, and j is 0-0.1.
- the catalyst component A is prepared by a method comprising the following steps:
- the catalyst component A can be prepared by referring to the methods disclosed in patents ZL201310491641.7, ZL201310491393.6 and ZL201310491648.9. More specifically, the carrier is a spherical magnesium compound carrier, and the catalyst component A is a reaction product of a titanium halide (e.g., titanium tetrachloride), a spherical magnesium compound carrier and an internal electron donor such as a carboxylic acid ester.
- a titanium halide e.g., titanium tetrachloride
- an internal electron donor such as a carboxylic acid ester.
- the spherical magnesium compound carrier is shown in formula (4):
- R1 is a C1 - C12 straight chain or branched alkyl group
- R2 and R3 are the same or different and are hydrogen or a C1 - C5 straight chain or branched alkyl group, wherein the hydrogen on the alkyl group may be optionally replaced by a halogen atom
- X is a halogen
- m is 0.1-1.9
- n is 0.1-1.9
- m+n 2.
- the catalyst component A is prepared by a method comprising the following steps:
- the vacuum drying conditions in the above operation include: temperature of 40-50°C and time of 30-60 min.
- the vacuum drying can be implemented by a conventional vacuum pump, and the present invention has no special requirements for it.
- the present invention provides a solid catalyst component prepared by the method described in the second aspect of the present invention.
- the present invention provides a catalyst system for olefin polymerization, the catalyst system comprising the solid catalyst component of the present invention, an alkyl aluminum and an optional external electron donor compound or a reaction product thereof.
- the alkyl aluminum, the external electron donor compound and their respective contents can be selected according to the prior art.
- the types of the alkyl aluminum and the external electron donor compound used in the catalyst system can be the same as or different from the alkyl aluminum and the external electron donor compound used in the process of preparing the solid catalyst component.
- the types of the alkyl aluminum and the external electron donor compound described in the second aspect of the present invention can be used.
- the alkylaluminum can be selected from one or more of triethylaluminum, triisobutylaluminum, tri-n-butylaluminum, tri-n-hexylaluminum and diethylaluminum monochloride.
- the ratio of the molar amount of the alkyl aluminum calculated as aluminum element to the molar amount of the solid catalyst component calculated as titanium element may be 1-1000: 1.
- the ratio of the molar amount of the alkyl aluminum calculated as aluminum element to the molar amount of the solid catalyst component calculated as titanium element may be 1: 1, 2: 1, 5: 1, 10: 1, 20: 1, 50: 1, 100: 1, 200: 1, 500: 1, 1000: 1 or a range thereof.
- the content of the alkyl aluminum is 0.01-100 mmol, preferably 0.1-10 mmol, and more preferably 1-5 mmol, relative to every 15 mg of the solid catalyst component.
- the external electron donor compound can be selected from at least one of cyclohexylmethyldimethoxysilane, diisopropyldimethoxysilane, di-n-butyldimethoxysilane, diisobutyldimethoxysilane, diphenyldimethoxysilane, methyl-tert-butyldimethoxysilane, dicyclopentyldimethoxysilane, cyclohexyltrimethoxysilane, tert-butyltrimethoxysilane and tert-hexyltrimethoxysilane.
- the ratio of the molar amount of the alkyl aluminum calculated as aluminum element to the molar amount of the external electron donor compound calculated as silicon element is 2-1000: 1.
- the ratio of the molar amount of the alkyl aluminum calculated as aluminum element to the molar amount of the external electron donor compound calculated as silicon element can be 2: 1, 5: 1, 10: 1, 20: 1, 50: 1, 100: 1, 200: 1, 500: 1, 1000: 1 or a range thereof.
- the present invention provides the use of the solid catalyst component described above and/or the solid catalyst component prepared by the method described above and/or the catalyst system described above in olefin polymerization.
- the present invention provides a method for olefin polymerization, which comprises: subjecting olefin to polymerization reaction in the presence of the solid catalyst component described above and/or the solid catalyst component prepared by the method described above and/or the catalyst system described above.
- the olefin is selected from one or more of ethylene, propylene, butene, pentene and hexene.
- the conditions of the polymerization reaction can be conventionally selected in the art, such as a reaction temperature of 0-150° C., preferably a reaction temperature of 60-90° C., and a reaction pressure of normal pressure or higher.
- the present invention provides a use of the solid catalyst component described above and/or the solid catalyst component prepared by the method described above in reducing olefin polymerization activity.
- the isotactic index of a polymer refers to the mass percentage of the polymer that is insoluble in boiling n-heptane under specified conditions. It is determined by the heptane extraction method (6 hours of boiling heptane extraction), i.e., 2 g of a dry polymer sample is taken, placed in an extractor and extracted with boiling heptane for 6 hours, and then the residue is dried to constant weight. The ratio of the mass (g) of the obtained polymer to 2 is the isotactic index.
- the polymer melt index is determined according to the method of ASTM D1238-99.
- the particle size distribution of the polymer is sieved through a standard sieve and the mass percentage of the fraction is calculated.
- Determination methods for specific surface area, pore size, pore volume, etc. The experiment used the AutoChem 2920 fully automatic chemical adsorption instrument produced by MICROMERITICS of the United States to test the carrier, the BET method was used to test the specific surface area, and the BJH method was used to test the pore volume.
- the testing method of XRD spectrum is as follows: the carrier is tested by Bruker AXS, D8 Advance X-ray diffractometer of Bruker Company of Switzerland.
- vacuum refers to the vacuum degree achieved by a conventional vacuum pump.
- 100 ml of toluene and 900 ml of titanium tetrachloride were added, the temperature was raised to 80°C, and the prepared suspension was then added to the kettle. After the temperature was kept constant for 1 hour, the temperature was continued to be raised to 115°C, and the temperature was kept constant for 2 hours, and the liquid was filtered clean.
- the composition of the catalyst component E-1 is as follows: 2.2% by weight of titanium, 15.3% by weight of magnesium, 54.1% by weight of chlorine, 9.0% by weight of 2,4-pentanediol dibenzoate and 9.5% by weight of polyolefin.
- the composition of the catalyst component E-2 is as follows: 2.1% by weight of titanium, 14.2% by weight of magnesium, 50.2% by weight of chlorine, 4.6% by weight of 2,4-pentanediol dibenzoate, 5.1% by weight of 2-isopropyl-2-isopentyl-1,3-dimethoxypropane and 17.1% by weight of polyolefin.
- Polypropylene was obtained by polymerization according to the method of propylene polymerization A in Example 1, except that E-2 was used instead of E-1, and polypropylene was obtained, which was recorded as P-2A.
- the composition of the catalyst component E-3 is as follows: 2.1% by weight of titanium, 14.4% by weight of magnesium, 50.6% by weight of chlorine, 4.7% by weight of 2,4-pentanediol dibenzoate, 5.0% by weight of 2-isopropyl-2-isopentyl-1,3-dimethoxypropane and 17.3% by weight of polyolefin.
- Polypropylene was obtained by polymerization according to the method of propylene polymerization A in Example 1, except that E-3 was used instead of E-1, and polypropylene was obtained, which was recorded as P-3A.
- the composition of the catalyst component E-4 is as follows: 1.7% by weight of titanium, 11.6% by weight of magnesium, 40.3% by weight of chlorine, 3.9% by weight of 2,4-pentanediol dibenzoate, 4.2% by weight of 2-isopropyl-2-isopentyl-1,3-dimethoxypropane, and 33.2% by weight of polyolefin.
- Polypropylene was obtained by polymerization according to the method of propylene polymerization A in Example 1, using E-4 instead of E-1, and recorded as P-4A.
- Polymerization was carried out according to the method of propylene polymerization A in Example 5, except that E-6 was used instead of E-5 to obtain polypropylene, which was recorded as P-6A.
- Polypropylene was obtained by polymerization according to the method of propylene polymerization A in Example 5, except that E-7 was used instead of E-5, and the polypropylene was recorded as P-7A.
- Polypropylene was obtained by polymerization according to the method of propylene polymerization A in Example 8, except that E-9 was used instead of E-8, and the polypropylene was recorded as P-9A.
- Polypropylene was obtained by polymerization according to the method of propylene polymerization A in Example 8, except that E-10 was used instead of E-8, and the polypropylene was recorded as P-10A.
- composition of catalyst component E-11 is as follows: 2.2% by weight of titanium, 16.3% by weight of magnesium, 53.1% by weight of chlorine, 9.1% by weight of 2-isopropyl-2-isopentyl-1,3-dimethoxypropane, and 13.0% by weight of polyolefin.
- the solid catalyst component was prepared in the same manner as in Example 11 except that A-8 was used instead of A-7.
- the composition of the catalyst component E-12 was as follows: 2.3 wt% titanium, 16.1 wt% magnesium, 52.8 wt% chlorine, 8.9 wt% 2-isopropyl-2-isopentyl-1,3-dimethoxypropane, and 13.2 wt% polyolefin.
- the propylene polymerization A was carried out in the same manner as in Example 11 except that E-12 was used instead of E-11 to obtain polypropylene, which was designated as P-12A.
- the composition of the catalyst component E-13 is as follows: 2.2% by weight of titanium, 16.2% by weight of magnesium, 52.9% by weight of chlorine, 9.0% by weight of 2-isopropyl-2-isopentyl-1,3-dimethoxypropane, and 13.5% by weight of polyolefin.
- the propylene polymerization A was carried out in the same manner as in Example 11 except that E-13 was used instead of E-11 to obtain polypropylene, which was designated as P-13A.
- the composition of the catalyst component E-14 was as follows: 2.2 wt% titanium, 16.6 wt% magnesium, 53.8 wt% chlorine, 2-isopropyl-2- 9.0 wt% of isopentyl-1,3-dimethoxypropane and 13.1 wt% of polyolefin.
- the propylene polymerization B was carried out in the same manner as in Example 11 except that E-14 was used instead of E-11 to obtain polypropylene, which was designated as P-14B.
- composition of catalyst component E-15 is as follows: 1.7% by weight of titanium, 12.6% by weight of magnesium, 40.2% by weight of chlorine, 7.0% by weight of 2-isopropyl-2-isopentyl-1,3-dimethoxypropane, and 33.8% by weight of polyolefin.
- Polypropylene was obtained by polymerization according to the method of propylene polymerization A in Example 11, using E-15 instead of E-11, and recorded as P-5A.
- the solid catalyst component was prepared in the same manner as in Example 16 except that A10 was used instead of A9.
- the propylene polymerization A was carried out in the same manner as in Example 16 except that E-17 was used instead of E-16 to obtain polypropylene, which was designated as P-17A.
- the solid catalyst component was prepared in the same manner as in Example 20 except that A12 was used instead of A11.
- the propylene polymerization A was carried out in the same manner as in Example 20 except that E-21 was used instead of E-20 to obtain polypropylene, which was designated as P-21A.
- the propylene polymerization B was carried out in the same manner as in Example 20 except that E-21 was used instead of E-20 to obtain polypropylene, which was designated as P-21B.
- the propylene polymerization A was carried out in the same manner as in Example 20 except that E-22 was used instead of E-20 to obtain polypropylene, which was designated as P-22A.
- the propylene polymerization B was carried out in the same manner as in Example 20 except that E-22 was used instead of E-20 to obtain polypropylene, which was designated as P-22B.
- the propylene polymerization B was carried out in the same manner as in Example 20 except that E-23 was used instead of E-20 to obtain polypropylene, which was designated as P-23B.
- the composition of the catalyst component E-24 is as follows: 2.3% by weight of titanium, 15.5% by weight of magnesium, 54.3% by weight of chlorine, 8.7% by weight of diisobutyl phthalate and 9.5% of polyolefin.
- the composition of the catalyst component E-25 is as follows: 2.3 wt% titanium, 15.1 wt% magnesium, 54.9 wt% chlorine, 8.5 wt% diisobutyl phthalate, and 9.4 wt% polyolefin.
- Propylene polymerization was carried out according to the propylene polymerization method A of Example 24, except that the solid catalyst component E-24 was replaced by E-25, thereby producing polypropylene, which was recorded as P-25A.
- the composition of catalyst component E-26 is as follows: 2.2 wt% titanium, 15.2 wt% magnesium, 55.0 wt% chlorine, 9.0 wt% diethyl 2,3-diisopropylsuccinate, and 9.1 wt% polyolefin.
- Propylene polymerization was carried out according to the propylene polymerization method A of Example 24, except that the solid catalyst component was replaced by E-26 from E-24 to obtain polypropylene, which was recorded as P-26A.
- composition of catalyst component E-27 is as follows: 1.6% by weight of titanium, 11.9% by weight of magnesium, 39.3% by weight of chlorine, 6.0% by weight of diethyl 2,3-diisopropylsuccinate, and 32.5% by weight of polyolefin.
- Polypropylene was obtained by polymerization according to the method of propylene polymerization A in Example 24, using E-27 instead of E-24, and recorded as P-27A.
- Propylene polymerization was carried out according to the propylene polymerization method A of Example 28, except that the solid catalyst component E-28 was replaced by E-29, thereby producing polypropylene, which was recorded as P-29A.
- Propylene polymerization was carried out according to the propylene polymerization method A of Example 28, except that the solid catalyst component was replaced by E-28 was replaced by E-30 to obtain polypropylene, which was designated as P-30A.
- Propylene polymerization was carried out according to the propylene polymerization A method of Example 31, except that the solid catalyst component E-31 was replaced by E-32, thereby producing polypropylene, which was recorded as P-32A.
- Propylene polymerization was carried out according to the propylene polymerization method A of Example 31, except that the solid catalyst component was replaced by E-33 from E-31 to obtain polypropylene, which was recorded as P-33A.
- Propylene polymerization was carried out according to the propylene polymerization A method of Example 1, except that the solid catalyst component was replaced by CE-1 in place of E-1, thereby producing polypropylene, which was designated as CP-1A.
- Propylene polymerization was carried out according to the propylene polymerization B method of Example 1, except that the solid catalyst component was replaced by CE-1 in place of E-1, thereby producing polypropylene, which was designated as CP-1B.
- Propylene polymerization was carried out according to the propylene polymerization A method of Example 6, except that the solid catalyst component was replaced by CE-2 in place of E-6, thereby producing polypropylene, which was recorded as CP-2A.
- Propylene polymerization was carried out according to the propylene polymerization B method of Example 6, except that the solid catalyst component was replaced by CE-2 in place of E-6, thereby producing polypropylene, which was recorded as CP-2B.
- the propylene polymerization A was carried out in the same manner as in Example 10 except that CE-3 was used instead of E-10 to obtain polypropylene, which was designated as CP-3A.
- the propylene polymerization B was carried out in the same manner as in Example 10 except that CE-3 was used instead of E-10 to obtain polypropylene, which was designated as CP-3B.
- a solid catalyst component was prepared according to the method of Comparative Example 3, except that 6 g of ethylene was used instead of 6 g of propylene, thereby obtaining a solid catalyst component, which was recorded as CE-4.
- Example 10 The same propylene polymerization A as in Example 10 was carried out except that CE-4 was used instead of E-100 to obtain polypropylene, which was designated as CP-4A.
- the propylene polymerization B was carried out in the same manner as in Example 10 except that CE-4 was used instead of E-10 to obtain polypropylene, which was designated as CP-4B.
- the propylene polymerization A was carried out in the same manner as in Example 10 except that CE-5 was used instead of E-10 to obtain polypropylene, which was designated as CP-5A.
- the propylene polymerization B was carried out in the same manner as in Example 10 except that CE-5 was used instead of E-10 to obtain polypropylene, which was designated as CP-5B.
- Propylene polymerization was carried out according to the propylene polymerization A method of Example 24, except that the solid catalyst component was replaced by CE-6 in place of E-24, thereby producing polypropylene, which was designated as CP-6A.
- Propylene polymerization was carried out according to the propylene polymerization B method of Example 24, except that the solid catalyst component was replaced by CE-6 in place of E-24, thereby producing polypropylene, which was recorded as CP-6B.
- the propylene polymerization A was carried out in the same manner as in Example 24 except that CE-7 was used instead of E-24 to obtain polypropylene, which was designated as CP-7A.
- Example 24 The same propylene polymerization B as in Example 24 was carried out except that CE-7 was used instead of E-24 to obtain polypropylene, which was designated as CP-7B.
- the propylene polymerization A was carried out in the same manner as in Example 24 except that CE-8 was used instead of E-24 to obtain polypropylene, which was designated as CP-8A.
- the propylene polymerization B was carried out in the same manner as in Example 24 except that CE-8 was used instead of E-24 to obtain polypropylene, which was designated as CP-8B.
- Table 1 Ti2p 3/2 electron binding energy of titanium in solid catalyst component Note: The “-” in Table 1-3 does not have the third characteristic peak.
- the Ti2p 3/2 electrode of the titanium component in the solid catalyst component prepared by the preparation method of the present invention is The binding energy of the ions has changed, with unique characteristic peaks, which will lead to changes in its olefin polymerization properties.
- the solid catalyst component of the present invention has a high polymerization activity for olefin polymerization and can meet the requirements of industrial application. Compared with the existing prepolymerization catalyst technology, such as compared with Comparative Examples 1-8, the attenuation of the polymerization activity is greatly reduced after the catalyst is stored for one year, and a prepolymerization catalyst with stable polymerization activity can be provided for the industrial production of polypropylene.
- the solid catalyst component of the present invention is used for olefin polymerization and has the advantage of low polymer fine powder content.
- the specific surface area of catalyst E1 of Example 1 is 20.2 m 2 /g, the pore volume is 0.026 cm 3 /g, and the pore diameter is 5.1 nm.
- the specific surface area of catalyst CE1 of Comparative Example 1 is 24.3 m 2 /g, the pore volume is 0.022 cm 3 /g, and the pore diameter is 5.5 nm.
- the specific surface area of catalyst E11 of Example 11 is 31.5 m 2 /g, the pore volume is 0.035 cm 3 /g, and the pore diameter is 4.4 nm.
- the specific surface area of catalyst CE3 of Comparative Example 3 is 32.1 m 2 /g, the pore volume is 0.034 cm 3 /g, and the pore diameter is 4.9 nm.
- the specific surface area, pore volume and pore diameter of the catalysts of the above two groups of embodiments and comparative examples are not much different, and can be approximately considered to be the same.
- the specific surface area, pore volume and pore diameter of the catalyst prepared by the method of the embodiment of the present invention and the catalyst prepared by the method of the comparative example of the catalyst component A in the preparation example of the present invention are also not much different. Therefore, the slow activity decay of the catalyst of the present invention is not closely related to the specific surface area, pore volume and pore diameter of the catalyst.
- the XRD patterns of the solid catalyst component E-1 (above) of Example 1 and the solid catalyst component CE-1 (below) of Comparative Example 1 are shown in FIG1 . It can be seen from the figure that the XRD spectra of the catalysts are almost identical, and the XRD patterns of the catalysts prepared by the catalyst component A in the preparation example of the present invention according to the method of the embodiment of the present invention and the catalysts prepared by the method of the comparative example are also almost identical. Therefore, the slow activity decay of the catalyst of the present invention is not highly correlated with the characteristic peaks of the XRD of the catalyst.
- composition of the solid catalyst component of the example was tested and no detectable amount of Group IVB elements other than Ti was found.
- the XPS peak fitting diagram of the solid catalyst component E-1 (above) of Example 1 and the solid catalyst component CE-1 (below) of Comparative Example 1 is shown in Figure 2, wherein the dotted line is the peak shape fitted.
- the catalyst CE1 of Comparative Example 1 has two fitting peaks in Ti2p 3/2
- the solid catalyst component E-1 of Example 1 has three characteristic peaks in Ti2p 3/2
- the solid catalyst components of the embodiments of the present invention all have three characteristic peaks in Ti2p 3/2
- the solid catalyst components of the comparative examples all have only two characteristic peaks in Ti2p 3/2 , as shown in Table 1-3. Therefore, the slow decay of the activity of the catalyst of the present invention is correlated with the three characteristic peaks in the XPS spectrogram of the catalyst.
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Abstract
Description
Ti%=[(E2-E1)×100)/(K·L·W·100)]×100
Mg(%)=[(VE·NE×24.31)/(G·1000)]×100
Cl(%)=[(V1-V2×D)×N1×35.45/G·1000)]×100
CA=M2×C1/M1
注:表1-3中“-”不具有第三个特征峰。
Claims (18)
- 一种用于烯烃聚合的固体催化剂组分,其特征在于,所述固体催化剂组分包括镁元素、钛元素、卤素、聚α-烯烃和内给电子体,其中,所述固体催化剂组分的XPS分析得到的Ti2p谱图采用高斯-洛伦兹分峰拟合的方式进行分峰,分峰结果显示Ti2p3/2轨道的谱峰在电子结合能为459.9eV-454.9eV处具有至少三个特征峰;其中,高斯-洛伦兹分峰拟合的方式为:设定洛伦兹与高斯比值为30%,Ti2p1/2轨道的谱峰的电子结合能与Ti2p3/2轨道的谱峰的电子结合能之差为5.9eV,Ti2p1/2轨道的谱峰的半峰宽是Ti2p3/2轨道的谱峰的半峰宽的1.7倍,Ti2p1/2轨道的谱峰的峰高是Ti2p3/2轨道的谱峰的峰高的0.28倍,且Ti2p3/2轨道的谱峰的各个特征峰具有相同的半峰宽。
- 根据权利要求1所述的固体催化剂组分,其中,所述固体催化剂组分的Ti2p3/2轨道的谱峰在电子结合能为459.9eV-454.9eV处具有三个特征峰,根据电子结合能从高到低,三个特征峰依次命名为第一特征峰、第二特征峰、第三特征峰,第一特征峰的电子结合能为459.9eV-458.97eV,第二特征峰的电子结合能为458eV-457.45eV、第三特征峰的电子结合能为456.2eV-454.9eV;和/或,所述固体催化剂组分的Ti2p1/2轨道的谱峰的电子结合能为467eV-462eV。
- 根据权利要求2所述的固体催化剂组分,其中,第三特征峰的峰面积占第一特征峰、第二特征峰和第三特征峰的峰面积之和的比例为5-20%,优选为5-15%。
- 根据权利要求1-3中任意一项所述的固体催化剂组分,其中,所述固体催化剂组分中不含有可检测量的除Ti以外的第ⅣB族元素。
- 根据权利要求1-4中任意一项所述的固体催化剂组分,其中,所述聚α-烯烃选自聚C2-C10烯烃,优选为聚乙烯、聚丙烯、聚丁烯、聚辛烯和聚异戊烯中的一种或多种,更优选为聚丙烯。
- 根据权利要求1-4中任意一项所述的固体催化剂组分,其中,所述内给电子体为二醇酯类化合物、1,3-二醚类化合物和羧酸酯中的至少一种;优选地,所述二醇酯类化合物具有式(1)所示的化学结构:
式(1)中,R1-R6相同或不同,各自独立地选自氢、氨基、C1-C10的直链烷基、C3-C10的支链烷基、C3-C10的环烷基、C6-C10的芳基、C7-C10的烷芳基和C7-C10的芳烷基;R1-R6中的两个以上的基团可选地互相键合成一个或几个稠环结构;R7和R8相同或不同,各自独立地选自C1-C10的直链烷基、C3-C10的支链烷基、C3-C20的环烷基、C6-C20的芳基、C7-C20的烷芳基和C7-C20的芳烷基;优选地,所述1,3-二醚类化合物具有式(2)所示的化学结构:
式(2)中,R1和R2相同或不同,各自独立地选自氢、C1-C20的直链烷基、C3-C10的支链烷基、C3-C20的环烷基、C6-C20的芳基、C7-C20的芳烷基和C7-C20的烷芳基,R1和R2可选地互相键合成稠环结构,R3和R4相同或不同,各自独立地选自C1-C10的烷基。 - 根据权利要求6所述的固体催化剂组分,其中,所述二醇酯类化合物选自1,3-丙二醇二苯甲酸酯、2-甲基-1,3-丙二醇二苯甲酸酯、2-乙基-1,3-丙二醇二苯甲酸酯、2,2-二甲基-1,3-丙二醇二苯甲酸酯、1,3-二苯基-1,3-丙二醇二苯甲酸酯、1,3-二苯基-1,3-丙二醇二正丙酸酯、1,3-二苯基-2-甲基-1,3-丙二醇二丙酸酯、1,3-二苯基-2-甲基-1,3-丙二醇二乙酸酯、1,3-二苯基-2,2-二甲基-1,3-丙二醇二苯甲酸酯、1,3-二苯基-2,2-二甲基-1,3-丙二醇二丙酸酯、1,3-二叔丁基-2-乙基-1,3-丙二醇二苯甲酸酯、1,3-二苯基-1,3-丙二醇二乙酸酯、1,3-二异丙基-1,3-丙醇二(4-丁基苯甲酸)酯、1-苯基-2-氨基-1,3-丙二醇二苯甲酸酯、1-苯基-2-甲基-1,3-丁二醇二苯甲酸酯、2,4-戊二醇二苯甲酸酯、3-丁基-2,4-戊二醇二苯甲酸酯、3,3-二甲基-2,4-戊二醇二苯甲酸酯、2,4-戊二醇二(对甲基苯甲酸)酯、2,4-戊二醇二(对叔丁基苯甲酸)酯、2,4-戊二醇二(对丁基苯甲酸)酯、2-甲基-1,3-戊二醇二(对甲基苯甲酸)酯、2-丁基-1,3-戊二醇二(对甲基苯甲酸)酯、2-甲基-1,3-戊二醇二(对叔丁基苯甲酸)酯、2-甲基-1,3-戊二醇新戊酸酯、2,2-二甲基-1,3-戊二醇二苯甲酸酯、2-乙基-1,3-戊二醇二苯甲酸酯、2-丁基-1,3-戊二醇二苯甲酸酯、2-甲基-1,3-戊二醇二苯甲酸酯、2-乙基-1,3-戊二醇二苯甲酸酯、2-丙基-1,3-戊二醇二苯甲酸酯、2-丁基-1,3-戊二醇二苯甲酸酯、3-乙基-3,5-庚二醇二苯甲酸酯、4-乙基-3,5-庚二醇 二苯甲酸酯、3-丙基-3,5-庚二醇二苯甲酸酯、4-丙基-3,5-庚二醇二苯甲酸酯、3-丁基-3,5-庚二醇二苯甲酸酯、2,3-二甲基-3,5-庚二醇二苯甲酸酯、2,4-二甲基-3,5-庚二醇二苯甲酸酯、2,5-二甲基-3,5-庚二醇二苯甲酸酯、4,4-二甲基-3,5-庚二醇二苯甲酸酯、4,5-二甲基-3,5-庚二醇二苯甲酸酯、4,6-二甲基-3,5-庚二醇二苯甲酸酯、6,6-二甲基-3,5-庚二醇二苯甲酸酯、2-甲基-3-乙基-3,5-庚二醇二苯甲酸酯、2-甲基-4-乙基-3,5-庚二醇二苯甲酸酯、2-甲基-5-乙基-3,5-庚二醇二苯甲酸酯、3-甲基-4-乙基-3,5-庚二醇二苯甲酸酯、3-甲基-5-乙基-3,5-庚二醇二苯甲酸酯、4-甲基-3-乙基-3,5-庚二醇二苯甲酸酯和4-甲基-4-乙基-3,5-庚二醇二苯甲酸酯中的至少一种;和/或,所述1,3-二醚类化合物选自2-(2-乙基己基)-1,3-二甲氧基丙烷、2-异丙基-1,3-二甲氧基丙烷、2-丁基-1,3-二甲氧基丙烷、2-仲丁基-1,3-二甲氧基丙烷、2-环己基-1,3-二甲氧基丙烷、2-苯基-1,3-二甲氧基丙烷、2-(2-苯基乙基)-1,3-二甲氧基丙烷、2-(2-环己基乙基)-1,3-二甲氧基丙烷、2-(对-氯苯基)-1,3-二甲氧基丙烷、2-(二苯基甲基)-1,3-二甲氧基丙烷、2,2-二环己基-1,3-二甲氧基丙烷、2,2-二环戊基-1,3-二甲氧基丙烷、2,2-二乙基-1,3-二甲氧基丙烷、2,2-二丙基-1,3-二甲氧基丙烷、2,2-二异丙基-1,3-二甲氧基丙烷、2,2-二丁基-1,3-二甲氧基丙烷、2-甲基-2-丙基-1,3-二甲氧基丙烷、2-甲基-2-苄基-1,3-二甲氧基丙烷、2-甲基-2-乙基-1,3-二甲氧基丙烷、2-甲基-2-异丙基-1,3-二甲氧基丙烷、2-甲基-2-苯基-1,3-二甲氧基丙烷、2-甲基-2-环己基-1,3-二甲氧基丙烷、2,2-双(2-环己基乙基)-1,3-二甲氧基丙烷、2-甲基-2-异丁基-1,3-二甲氧基丙烷、2-甲基-2-(2-乙基己基)-1,3-二甲氧基丙烷、2,2-二异丁基-1,3-二甲氧基丙烷、2,2-二苯基-1,3-二甲氧基丙烷、2,2-二苄基-1,3-二甲氧基丙烷、2,2-双(环己基甲基)-1,3-二甲氧基丙烷、2-异丁基-2-异丙基-1,3-二甲氧基丙烷、2-(1-甲基丁基)-2-异丙基-1,3-二甲氧基丙烷、2-异丙基-2-异戊基-1,3-二甲氧基丙烷、2-苯基-2-异丙基-1,3-二甲氧基丙烷、2-苯基-2-仲丁基-1,3-二甲氧基丙烷、2-苄基-2-异丙基-1,3-二甲氧基丙烷、2-环戊基-2-异丙基-1,3-二甲氧基丙烷、2-环戊基-2-仲丁基-1,3-二甲氧基丙烷、2-环己基-2-异丙基-1,3-二甲氧基丙烷、2-环己基-2-仲丁基-1,3-二甲氧基丙烷、2-异丙基-2-仲丁基-1,3-二甲氧基丙烷、2-环己基-2-环己基甲基-1,3-二甲氧基丙烷和9,9-二甲氧基甲基芴中的至少一种。
- 根据权利要求6所述的固体催化剂组分,其中,所述羧酸酯为脂肪族羧酸酯和/或芳香族羧酸酯;优选地,所述羧酸酯为苯甲酸酯类化合物、邻苯二甲酸酯类化合物和琥珀酸酯类化合物中的一种或多种;优选地,所述苯甲酸酯类化合物选自苯甲酸甲酯、苯甲酸乙酯和苯甲酸正丁酯中的一种或多种;优选地,所述邻苯二甲酸酯类化合物选自邻苯二甲酸二乙酯、邻苯二甲酸二异丁酯、邻苯二甲酸二正丁酯、邻苯二甲酸二异辛酯和邻苯二甲酸二正辛酯中的一种或多种;优选地,所述琥珀酸酯类化合物选自2,3-二异丙基琥珀酸二乙酯、2,3-二异丙基琥珀酸二异丁酯、2,3-二异丙基琥珀酸二正丁酯、2,3-二异丙基琥珀酸二甲基酯、2,2-二甲基琥珀酸二异丁酯、2-乙基-2-甲基琥珀酸二异丁酯和2-乙基-2-甲基琥珀酸二乙酯中的一种或多种。
- 根据权利要求1-8中任意一项所述的固体催化剂组分,其中,所述内给电子体包括内给电子体a和内给电子体b,所述内给电子体a和内给电子体b为:选项I:所述内给电子体a选自所述二醇酯类化合物,所述内给电子体b选自1,3-二醚类化合物和可选的羧酸酯;选项II:所述内给电子体a选自所述1,3-二醚类化合物,所述内给电子体b选自式(3)所示的磷酸酯类化合物;
式(3)中,R5、R6和R7相同或不同,各自独立地选自C1-C4的直链烷基、C3-C4的支链烷基、C3-C20的环烷基、C6-C20的芳基、C7-C20的烷芳基和C7-C20的芳烷基;优选地,所述磷酸酯类化合物选自磷酸三甲酯、磷酸三乙酯、磷酸三丁酯、磷酸三苯酯、磷酸三甲苯酯、磷酸三异丙基苯酯、磷酸苯基二甲酯、磷酸甲苯基二丁酯、磷酸异丙苯基二甲酯、磷酸异丙苯基二乙酯、磷酸异丙苯基二丁酯、磷酸苯基二甲苯酯、磷酸苯基二异丙基苯酯、磷酸对甲苯基二丁酯、磷酸间甲苯基二丁酯、磷酸对异丙苯基二甲酯、磷酸对异丙苯基二乙酯、磷酸对叔丁基苯基二甲酯和磷酸邻甲苯基对二叔丁苯基酯中的至少一种。 - 根据权利要求9所述的固体催化剂组分,其中,所述内给电子体a与所述内给电子体b的质量比为0.1:1-1000:1。
- 根据权利要求1-10中任意一项所述的固体催化剂组分,其中,以所述固体催化剂组分的总重量为计算基准,所述固体催化剂组分中,镁元素的含量为1-18重量%;钛元素的含量为0.1-3.5重量%;卤素的含量为2-65重量%;聚α-烯烃的含量为0.1-89重量%;内给电子体的含量为0.6-15重量%。
- 一种制备用于烯烃聚合的固体催化剂组分的方法,其特征在于,该方法包括:(1)在惰性溶剂存在下,使催化剂组分A、烷基铝和外给电子体接触进行反应;所述催化剂组分A含有钛元素、镁元素、卤素和内给电子体;(2)将步骤(1)所得反应体系与α-烯烃混合进行聚合反应;(3)去除步骤(2)中未反应的α-烯烃,所得反应体系中加入氢气进行反应。
- 根据权利要求12所述的方法,其中,所述烷基铝、所述外给电子体化合物与以钛元素计的所述催化剂组分A用量的摩尔比为1-50:0.2-10:1;和/或,所述烷基铝中烷基的个数为1-3个,烷基的碳原子数为C1-C8,更优选地,所述烷基铝选自三乙基铝、三异丁基铝、三正丁基铝、三正己基铝和一氯二乙基铝中的一种或多种;和/或,所述外给电子体化合物选自含硅化合物中的至少一种,优选自环己基甲基二甲氧基硅烷、二异丙基二甲氧基硅烷、正丁基二甲氧基硅烷、二异丁基二甲氧基硅烷、二苯基二甲氧基硅烷、甲基叔丁基二甲氧基硅烷和二环戊基二甲氧基硅烷中的一种或多种;和/或,所述内给电子体包括二醇酯类化合物、1,3-二醚类化合物和羧酸酯中的至少一种;和/或,所述α-烯烃选自C2-C10烯烃,优选为乙烯、丙烯、丁烯、辛烯和异戊烯中的一种或多种,更优选为丙烯。
- 根据权利要求12或13所述的方法,其中,步骤(1)中,所述反应的条件包括:温度为0-30℃,优选为15-25℃;时间为1-30min,优选为10-20min;和/或,步骤(2)中,所述聚合反应的条件包括:温度为0-50℃,优选为15-25℃;时间为5-30min,优选为10-20min;和/或,步骤(3)中,所述反应的条件包括:温度为0-50℃,优选为15-25℃;时间为5-30min,优选为10-20min;和/或,步骤(3)中,控制所述氢气加入量以维持反应压力在0.01-1MPa;和/或,步骤(2)中,所述α-烯烃与催化剂组分A的质量比为0.04-10:1。
- 权利要求12-14中任意一项所述的方法制备得到的固体催化剂组分。
- 一种用于烯烃聚合的催化剂体系,其特征在于,该催化剂体系包括权利要求1-11中任意一项所述的固体催化剂组分和/或权利要求12-14中任意一项所述的方法制备得到的固体催化剂组分、烷基铝和可选的外给电子体化合物或其反应产物。
- 权利要求1-11中任意一项所述的固体催化剂组分和/或权利要求12-14中任意一项所述的方法制备得到的固体催化剂组分和/或权利要求16中所述的催化剂体系在烯烃聚合中的用途。
- 一种烯烃聚合的方法,其特征在于,该方法包括:在权利要求1-11中任意一项所述的固体催化剂组分和/或权利要求12-14中任意一项所述的方法制备得到的固体催化剂组分和/或权利要求16所述的催化剂体系的存在下使烯烃进行聚合反应;优选地,所述烯烃的通式为CH2=CHR,R为氢或C1-C6的烷基或C6-C10芳基;优选地,所述聚合反应的温度为0-150℃,更优选为60-90℃。
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| CN202211321023.3 | 2022-10-26 | ||
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| CN202211321504.4A CN117924566A (zh) | 2022-10-26 | 2022-10-26 | 用于烯烃聚合的固体催化剂组分及其制备方法和应用 |
| CN202211321006.XA CN117924558A (zh) | 2022-10-26 | 2022-10-26 | 用于烯烃聚合的固体催化剂组分及其制备方法和应用 |
| CN202211321023.3A CN117924565A (zh) | 2022-10-26 | 2022-10-26 | 用于烯烃聚合的固体催化剂组分、用于烯烃聚合的催化剂及其制备方法和应用 |
| CN202211321006.X | 2022-10-26 | ||
| CN202211321506.3A CN117924559A (zh) | 2022-10-26 | 2022-10-26 | 用于烯烃聚合的固体催化剂组分及其应用 |
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| EP (1) | EP4596588A4 (zh) |
| JP (1) | JP2025535479A (zh) |
| KR (1) | KR20250079042A (zh) |
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- 2023-10-25 EP EP23881875.1A patent/EP4596588A4/en active Pending
- 2023-10-25 JP JP2025523558A patent/JP2025535479A/ja active Pending
- 2023-10-25 TW TW112140829A patent/TWI881503B/zh active
- 2023-10-25 KR KR1020257016281A patent/KR20250079042A/ko active Pending
- 2023-10-25 WO PCT/CN2023/126424 patent/WO2024088298A1/zh not_active Ceased
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Also Published As
| Publication number | Publication date |
|---|---|
| TW202417529A (zh) | 2024-05-01 |
| EP4596588A4 (en) | 2026-04-01 |
| KR20250079042A (ko) | 2025-06-04 |
| JP2025535479A (ja) | 2025-10-24 |
| EP4596588A1 (en) | 2025-08-06 |
| TWI881503B (zh) | 2025-04-21 |
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