EP1814842A1 - Procede de preparation d'esters ou d anhydrides (meth)acryliques - Google Patents
Procede de preparation d'esters ou d anhydrides (meth)acryliquesInfo
- Publication number
- EP1814842A1 EP1814842A1 EP05809215A EP05809215A EP1814842A1 EP 1814842 A1 EP1814842 A1 EP 1814842A1 EP 05809215 A EP05809215 A EP 05809215A EP 05809215 A EP05809215 A EP 05809215A EP 1814842 A1 EP1814842 A1 EP 1814842A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- reactor
- reaction
- catalyst
- meth
- compartment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 24
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 150000008064 anhydrides Chemical class 0.000 title claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims abstract description 49
- 239000003054 catalyst Substances 0.000 claims abstract description 30
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 18
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 8
- 230000018044 dehydration Effects 0.000 claims abstract description 8
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 8
- 238000006073 displacement reaction Methods 0.000 claims abstract description 8
- 125000000623 heterocyclic group Chemical group 0.000 claims abstract description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 3
- 125000004433 nitrogen atom Chemical group N* 0.000 claims abstract description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims abstract 2
- UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical compound CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 claims description 21
- 229960002887 deanol Drugs 0.000 claims description 21
- -1 alkyl radical Chemical class 0.000 claims description 18
- 238000005809 transesterification reaction Methods 0.000 claims description 17
- 238000002360 preparation method Methods 0.000 claims description 14
- 239000000047 product Substances 0.000 claims description 14
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 claims description 10
- 238000005886 esterification reaction Methods 0.000 claims description 10
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 claims description 10
- DPBJAVGHACCNRL-UHFFFAOYSA-N 2-(dimethylamino)ethyl prop-2-enoate Chemical compound CN(C)CCOC(=O)C=C DPBJAVGHACCNRL-UHFFFAOYSA-N 0.000 claims description 8
- 230000032050 esterification Effects 0.000 claims description 8
- 239000006227 byproduct Substances 0.000 claims description 7
- 125000004432 carbon atom Chemical group C* 0.000 claims description 7
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 5
- JMXKSZRRTHPKDL-UHFFFAOYSA-N titanium ethoxide Chemical compound [Ti+4].CC[O-].CC[O-].CC[O-].CC[O-] JMXKSZRRTHPKDL-UHFFFAOYSA-N 0.000 claims description 5
- WCYWZMWISLQXQU-UHFFFAOYSA-N methyl Chemical group [CH3] WCYWZMWISLQXQU-UHFFFAOYSA-N 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- 230000008030 elimination Effects 0.000 claims description 3
- 238000003379 elimination reaction Methods 0.000 claims description 3
- ARJOQCYCJMAIFR-UHFFFAOYSA-N prop-2-enoyl prop-2-enoate Chemical class C=CC(=O)OC(=O)C=C ARJOQCYCJMAIFR-UHFFFAOYSA-N 0.000 claims description 3
- 150000007513 acids Chemical group 0.000 claims description 2
- QUPDWYMUPZLYJZ-UHFFFAOYSA-N ethyl Chemical group C[CH2] QUPDWYMUPZLYJZ-UHFFFAOYSA-N 0.000 claims description 2
- 230000005484 gravity Effects 0.000 claims description 2
- 125000004356 hydroxy functional group Chemical group O* 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 125000000075 primary alcohol group Chemical group 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 229920006395 saturated elastomer Polymers 0.000 claims description 2
- 150000003333 secondary alcohols Chemical class 0.000 claims description 2
- 125000001424 substituent group Chemical group 0.000 claims description 2
- 125000004663 dialkyl amino group Chemical group 0.000 abstract 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 abstract 1
- 239000003112 inhibitor Substances 0.000 description 10
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 9
- 238000006116 polymerization reaction Methods 0.000 description 9
- 239000000203 mixture Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000004821 distillation Methods 0.000 description 7
- 150000002148 esters Chemical class 0.000 description 7
- WJFKNYWRSNBZNX-UHFFFAOYSA-N 10H-phenothiazine Chemical compound C1=CC=C2NC3=CC=CC=C3SC2=C1 WJFKNYWRSNBZNX-UHFFFAOYSA-N 0.000 description 6
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 229950000688 phenothiazine Drugs 0.000 description 6
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 4
- 239000011541 reaction mixture Substances 0.000 description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- GDOPTJXRTPNYNR-UHFFFAOYSA-N methyl-cyclopentane Natural products CC1CCCC1 GDOPTJXRTPNYNR-UHFFFAOYSA-N 0.000 description 3
- HGINCPLSRVDWNT-UHFFFAOYSA-N Acrolein Chemical compound C=CC=O HGINCPLSRVDWNT-UHFFFAOYSA-N 0.000 description 2
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- BCNCKJAYWXWHDQ-UHFFFAOYSA-N ethanol;ethyl prop-2-enoate Chemical compound CCO.CCOC(=O)C=C BCNCKJAYWXWHDQ-UHFFFAOYSA-N 0.000 description 2
- NWVVVBRKAWDGAB-UHFFFAOYSA-N p-methoxyphenol Chemical compound COC1=CC=C(O)C=C1 NWVVVBRKAWDGAB-UHFFFAOYSA-N 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- 125000005595 acetylacetonate group Chemical group 0.000 description 1
- 125000005907 alkyl ester group Chemical group 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 125000004985 dialkyl amino alkyl group Chemical group 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229960003505 mequinol Drugs 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
- C07C69/52—Esters of acyclic unsaturated carboxylic acids having the esterified carboxyl group bound to an acyclic carbon atom
- C07C69/533—Monocarboxylic acid esters having only one carbon-to-carbon double bond
- C07C69/54—Acrylic acid esters; Methacrylic acid esters
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C213/00—Preparation of compounds containing amino and hydroxy, amino and etherified hydroxy or amino and esterified hydroxy groups bound to the same carbon skeleton
- C07C213/06—Preparation of compounds containing amino and hydroxy, amino and etherified hydroxy or amino and esterified hydroxy groups bound to the same carbon skeleton from hydroxy amines by reactions involving the etherification or esterification of hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C213/00—Preparation of compounds containing amino and hydroxy, amino and etherified hydroxy or amino and esterified hydroxy groups bound to the same carbon skeleton
- C07C213/10—Separation; Purification; Stabilisation; Use of additives
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/03—Preparation of carboxylic acid esters by reacting an ester group with a hydroxy group
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/08—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds
Definitions
- the present invention relates to a process for preparing (meth) acrylic esters or anhydrides, either by transesterification or by esterification from (meth) acrylic acid, continuously, in a continuous equilibrium displacement reactor.
- EP 960877 has been described the continuous preparation of dialkylaminoalkyl (meth) acrylate in the presence of a tetraalkyl titanate as a transesterification catalyst and in the presence of at least one polymerization inhibitor.
- the reaction is carried out at 90-120 ° C., and then the crude reaction mixture is sent to a first distillation column under reduced pressure.
- the distillation used makes it possible to obtain a stream composed of the expected ester and light products and substantially free of catalyst.
- This stream is sent to a second distillation column under reduced pressure, in which a new stream composed of the expected ester, traces of light products and heavy by-products and polymerization inhibitors is collected.
- a rectification is carried out in a third distillation column, under reduced pressure, in which the expected ester is isolated.
- FR 2389070 has been described the continuous preparation of dimethylaminoethyl acrylate by reaction of dimethylaminoethanol with ethyl acrylate, in the presence of at least one transesterification catalyst.
- the reaction is conducted in the presence of tetraalkyl titanate and in the presence of at least one polymerization inhibitor.
- the reaction is carried out in several piston tube reactors, preferably placed in series.
- the azeotropic ethyl acrylate-ethanol mixture formed is withdrawn continuously from each piston reactor during the reaction.
- the residence time of the reaction is from 2 to 6 hours.
- German patent application DE 10127938 describes the preparation of dialkylaminoethyl (meth) acrylates by esterification of alkyl esters of (meth) acrylic acid in the presence of a catalyst and in which the residence time of the mixture The reaction zone in the reaction zone is 1.5 to 3 hours.
- German patent application DE 10127939 describes the preparation of (meth) acrylic esters by transesterification with an alcohol in the presence of a catalyst.
- the alcohol may be in particular dialkylaminoethanol.
- the dialkylaminoethyl (meth) acrylates prepared have a good degree of purity.
- R is a hydrogen atom or a methyl radical
- R ' is a straight or branched alkyl radical containing 1 to 4 carbon atoms
- R is a hydrogen atom or a methyl radical, preferably operating in the presence of at least one catalyst, in a continuous equilibrium displacement reactor tubular R2, equipped with a first reactor R1 intended for prior dehydration of the reagents to be involved in the reaction.
- the catalyst is advantageously selected from tetraalkyl titanates.
- the catalyst is advantageously chosen from acids such as, for example, sulfuric acid.
- metal salts of anionic organic compounds having at least one carboxylic function such as, for example, acetates or acetylacetonates.
- metal salts of anionic organic compounds having at least one carboxylic function such as, for example, acetates or acetylacetonates.
- the withdrawal of gaseous products in the upper part of the compartments of the reactor R2 could also be applied to the withdrawal of reaction products, in the case of balanced reactions in which the boiling points There is a significant difference between the reagent and the reaction product (s).
- the products withdrawn at the top of each compartment are treated in a distillation column into which they are introduced.
- the catalyst used when it is a transesterification reaction, is advantageously chosen from ethyl titanate, optionally in the form of a solution that is ready for use as a commercial solution in dimethylaminoethanol (DMAE) or as a mixture with other titanates such as isopropyl titanate.
- DMAE dimethylaminoethanol
- the quantities The amounts used range from 5 x 10 4 to 5 x 10 2 moles per mole of DMAE and preferably from 5 x 10 3 to 2 x 10 -2 moles per mole of DMAE.
- esterification transesterification or preparation of acrylic anhydride in a continuous equilibrium displacement reactor makes it possible to obtain a better conversion of the reagents acid (meth) acrylic alcohol and / or acetic anhydride and by therefore a reduced size of the columns to be distilled for the purification step.
- the process according to the invention makes it possible to limit the residence time in the reactor and therefore to operate with a lower reaction volume than in the previously known processes. In particular, it has been shown that the residence time can be divided by 2.5 with respect to a reactor of the same size, perfectly agitated.
- R1 represents the reactor in which the (meth) acrylic ester or (meth) acrylic acid, and alcohol or acetic anhydride, mixture is introduced respectively.
- the reactor R1 is provided with a column intended to eliminate either the azeotrope formed between the light ester and the light alcohol or the azeotrope formed between the light ester and the water
- each baffled part in its upper part is comparable to an individual reactor placed in series with the following.
- the reactor may comprise from 2 to 14 baffles located at the top, so as to be comparable to 3 to 15 reactors in series.
- a reactor R2 comprising 8 baffles (thus 9 compartments) is particularly efficient.
- At the upper level of each compartment is disposed a communication system with the treatment column of the products or by-products such as the azeotrope formed between the ester
- the reactors R1 and R2 are heated at temperatures of between 100 and 160 ° C., preferably at a temperature in the region of 140 ° C. Thus, in the reactor R2, from the first reactor to the last, the temperatures vary between 80 and 130 ° C. vs.
- P1, P2 and P3 represent regulating pumps.
- the pump P1 makes it possible to introduce the reagents into the reactor R1 and to regulate their introduction rate.
- the reactor R1 is filled between% and% of its capacity, preferably at% of its capacity.
- the pump P2 makes it possible to ensure the introduction of the reagents from R1 into the reactor R2 and to regulate the level of the reactor R1 to the% of its capacity.
- the pump P3 makes it possible to introduce the catalyst into the reactor R2.
- the catalyst is never in contact with acrylic ester reagents and alcohol whose traces of water have not been previously eliminated.
- the reaction crude can be withdrawn by gravity at the last compartment of the tubular reactor R2. It can be purified, according to the usual methods.
- R1, R2 provided with draw-off devices at the top of each compartment, and the pumps P1, P2, P3 are also within the scope of the present invention. It is understood that the reactor R2 is also within the scope of the present invention.
- the reactions are carried out after putting the system into operation.
- the residence time is determined after the setting up of the installation.
- the residence time in the reactor R2 is 3 hours.
- the apparatus is in operating mode.
- 2 or 3 residence times are carried out. It is advantageously operated under reduced pressure between 800 and 1015 mbar and preferably between 900 and 1000 mbar.
- the method according to the invention has the advantage of being easily industrializable. It makes it possible to limit the residence time in the reactor and therefore to operate with a lower reaction volume than in the previously known processes. In particular, it has been shown that the residence time can be divided by 2.5 with respect to a reactor of the same size, perfectly agitated. Finally, the implementation of the transesterification process of the (meth) acrylic ester in an equilibrium continuous displacement reactor makes it possible to obtain a better conversion of the reagent: alcohol, for example dimethylaminoethanol, and consequently a reduced size. distillation columns in the purification step. Better selectivity is also obtained.
- the polymerization inhibitors may be chosen from the inhibitors usually used and which do not affect the molecules of the present reaction.
- phenothiazine PTZ
- tetramethyl-4-hydroxy-1-piperidinyloxy 4-HO-TEMPO
- BHT 2-orthoditertiobutylparacresol
- EMHQ hydroquinone methyl ether
- hydroquinone and / or mixtures thereof.
- the inhibitor of The polymerization is introduced with the mixture of reagents in the reactor R1, by the pump P1.
- 100 to 5000 ppm of polymerization inhibitor is used with respect to the reaction charge introduced into R1.
- an acrylic ester such as dimethylaminoethyl acrylate by continuous transesterification of ethyl acrylate with dimethylaminoethanol, operating in the presence of at least one catalyst such as tetraalkyl titanate in an equilibrium continuous displacement reactor R2 provided with a first reactor R1 intended for the prior dehydration of the reagents to be used in the reaction and the elimination of the azeotrope formed between ethyl acrylate and water.
- at least one catalyst such as tetraalkyl titanate in an equilibrium continuous displacement reactor R2 provided with a first reactor R1 intended for the prior dehydration of the reagents to be used in the reaction and the elimination of the azeotrope formed between ethyl acrylate and water.
- FIG. 1 According to a preferred embodiment of the invention in FIG. 1
- R1 represents the reactor in which is introduced the mixture of ethyl acrylate (AE) and dimethylaminoethanol (DMAE).
- the reactor R1 is provided with a column intended to eliminate the azeotrope formed between ethyl acrylate and water, as well as the azeotrope formed between ethyl acrylate and ethanol. It also allows the complete dehydration of the reagents.
- the polymerization inhibitor is also introduced into this reactor.
- R2 represents the tube reactor, horizontal, baffled calender in which is sent the reaction mixture. Each compartment is equipped in its upper part with the vapor phase elimination system.
- a communication system is disposed between the reactor R2 and the ethyl acrylate ethanol azeotrope removal column. Said azeotrope is then injected into the distillation column, preferably at mid-height of the column.
- the reactors R1 and R2 are heated at temperatures between 100 and 160 ° C. Preferably at a temperature in the region of 140 ° C. Thus, in the reactor R2, from the first reactor to the last, the temperatures vary between 80 and 130 ° C
- P1, P2 and P3 represent the regulating pumps.
- the catalyst is chosen from tetraalkyl titanates, such as, for example, tetraethyl titanate dissolved in DMAE.
- reaction crude withdrawn at the last compartment of the tubular reactor R2 can be purified, according to the usual methods, in particular by operating according to the method described in application EP 960877.
- the flow rates correspond to a "residence time" of 3 hours for 9 compartments of the reactor, under reduced pressure: 91 kPa.
- EA ethyl acrylate
- DMAE dimethylaminoethanol
- the catalyst used is prepared in the form of a commercial solution containing 80% by weight of ethyl titanate in dimethylaminoethanol, previously prepared and ready for use.
- the vacuum pump, the refrigeration system, the bubbling of dry air in the reactor R1, as well as the heating of the reactors R1 and R2 at 140 ° C., are put into service.
- the mixture AE and DMAE (including PTZ and 4-HO TEMPO) is introduced into the reactor R1, with a flow rate of 278 g / hr by the pump P1.
- R1 is at% full (100 ml)
- R2 is fed from of Rl.
- the level of the reactor R1 is kept constant by the presence of the recovery pump P2 (flow rate of 694.5 g / h in steady state).
- the catalyst introduction pump P3 is operated with a flow rate of 2.85 g / h.
- reaction is conducted for a period of 6 hours (2 "residence time"), by drawing the AE / EtOH azeotrope at the top of each of the 9 compartments.
- the reaction crude is analyzed by gas chromatography, so as to determine the selectivity and the yield of ADAME (dimethylaminoethyl acrylate), as well as the conversion of DMAE.
- ADAME dimethylaminoethyl acrylate
- reactor R2 the temperature ranged from 85 ° C in the compartment 1 at 12O 0 C in the last compartment.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0410734A FR2876375B1 (fr) | 2004-10-12 | 2004-10-12 | Procede de preparation d'esters ou d'anydrides (meth) acryliques |
| PCT/FR2005/002508 WO2006040470A1 (fr) | 2004-10-12 | 2005-10-11 | Procede de preparation d'esters ou d’anhydrides (meth)acryliques |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1814842A1 true EP1814842A1 (fr) | 2007-08-08 |
Family
ID=34952478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP05809215A Withdrawn EP1814842A1 (fr) | 2004-10-12 | 2005-10-11 | Procede de preparation d'esters ou d anhydrides (meth)acryliques |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20080161596A1 (fr) |
| EP (1) | EP1814842A1 (fr) |
| JP (1) | JP2008515861A (fr) |
| KR (1) | KR20070104330A (fr) |
| CN (1) | CN101039897A (fr) |
| FR (1) | FR2876375B1 (fr) |
| WO (1) | WO2006040470A1 (fr) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2927329B1 (fr) * | 2008-02-08 | 2010-04-16 | Arkema France | Procede ameliore de preparation d'anhydride (meth)acrylique. |
| FR2934261B1 (fr) * | 2008-07-25 | 2015-04-10 | Arkema France | Procede de synthese d'esters de l'acide acrylique |
| EP2357186A1 (fr) * | 2010-02-12 | 2011-08-17 | Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. | Procédé de production d'objets ou de surfaces en trois dimensions biocompatibles par rayonnement laser, lesdits objets, leur utilisation, ainsi que des matériaux de départ pour le procédé |
| FR3012447B1 (fr) * | 2013-10-29 | 2017-01-20 | Arkema France | Procede de production d'esters (meth)acryliques legers |
| FR3060001B1 (fr) | 2016-12-08 | 2020-05-01 | Arkema France | Procede de fabrication d'esters (meth)acryliques |
| FR3086658B1 (fr) * | 2018-10-02 | 2021-10-15 | Arkema France | Stabilisation de (meth)acrylates d'aminoalkyle |
| FR3104155B1 (fr) | 2019-12-09 | 2021-10-29 | Arkema France | Procede de fabrication en continu d’acrylates d’alkyle lourds |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3642877A (en) * | 1968-12-27 | 1972-02-15 | Du Pont | Process for the preparation of dimethylaminoethyl methacrylate |
| JPS5760331B2 (fr) * | 1972-03-06 | 1982-12-18 | Nippon Shokubai Kagaku Kogyo Kk | |
| US4543422A (en) * | 1982-10-26 | 1985-09-24 | Allied Colloids Limited | Synthesis of vinyl esters |
| JP2793045B2 (ja) * | 1990-08-10 | 1998-09-03 | 株式会社日本触媒 | アクリル酸またはメタクリル酸のアルキルアミノアルキルエステル及びその第4級塩の製造方法 |
| ES2125496T3 (es) * | 1993-10-22 | 1999-03-01 | Dow Chemical Co | Alquilenglicoles que tienen un contenido aumentado de hidroxilo primario. |
| DE19536178A1 (de) * | 1995-09-28 | 1997-04-03 | Basf Ag | Verfahren und Vorrichtung zur kontinuierlichen Herstellung von Alkylestern der (Meth)acrylsäure |
| US5710316A (en) * | 1996-11-27 | 1998-01-20 | Arco Chemical Technology, L.P. | Transesterification process for making allyl esters of aromatic carboxylic acids |
| FR2777561B1 (fr) * | 1998-04-21 | 2000-06-02 | Atochem Elf Sa | Procede de fabrication en continu de (meth)acrylates de dialkylaminoalkyle |
| US6451268B1 (en) * | 1999-04-16 | 2002-09-17 | Minerals Technologies Inc. | Method and apparatus for continuous gas liquid reactions |
| DE10145228A1 (de) * | 2001-09-13 | 2003-04-24 | Roehm Gmbh | Synthese von t-Butylaminoethylmethacrylat durch Umesterung des Alkohols mit MMA |
| FR2839070A1 (fr) * | 2002-04-30 | 2003-10-31 | Atofina | Procede de fabrication en continu de l'acrylate de dimethylaminoethyle |
| DE10301007A1 (de) * | 2003-01-13 | 2004-07-22 | Röhm GmbH & Co. KG | Verbessertes Verfahren zur kontinuierlichen Herstellung von Alkyl(meth)acrylaten mit mehrfacher Katalysatorrezyklierung. |
-
2004
- 2004-10-12 FR FR0410734A patent/FR2876375B1/fr not_active Expired - Fee Related
-
2005
- 2005-10-11 CN CNA200580034687XA patent/CN101039897A/zh active Pending
- 2005-10-11 KR KR1020077008067A patent/KR20070104330A/ko not_active Withdrawn
- 2005-10-11 JP JP2007535201A patent/JP2008515861A/ja active Pending
- 2005-10-11 WO PCT/FR2005/002508 patent/WO2006040470A1/fr not_active Ceased
- 2005-10-11 EP EP05809215A patent/EP1814842A1/fr not_active Withdrawn
- 2005-10-11 US US11/664,938 patent/US20080161596A1/en not_active Abandoned
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2006040470A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2006040470A1 (fr) | 2006-04-20 |
| CN101039897A (zh) | 2007-09-19 |
| JP2008515861A (ja) | 2008-05-15 |
| KR20070104330A (ko) | 2007-10-25 |
| FR2876375A1 (fr) | 2006-04-14 |
| US20080161596A1 (en) | 2008-07-03 |
| FR2876375B1 (fr) | 2007-02-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH09110789A (ja) | (メタ)アクリル酸のアルキルエステルを連続的に製造するための方法及び装置 | |
| EP0433135B1 (fr) | Procédé de préparation de (meth)acrylate d'alkylimidazolidone | |
| CZ33597A3 (en) | Continuous preparation of (meth)acrylic acid alkyl esters | |
| JP6804296B2 (ja) | 軽質(メタ)アクリル酸エステルの製造方法 | |
| EP0044409B1 (fr) | Procédé pour la purification d'acrylate de méthyle | |
| JP7449877B2 (ja) | 軽質アクリレートを精製するための方法 | |
| EP2931695A1 (fr) | Procede de production d'acrylate d'alkyle | |
| JP2014506235A (ja) | アクリレートの製造方法 | |
| WO2016016528A1 (fr) | Procédé perfectionne de fabrication de (méth)acrylates d'alkyle | |
| EP1814842A1 (fr) | Procede de preparation d'esters ou d anhydrides (meth)acryliques | |
| EP2382182B1 (fr) | Procede de purification de la fraction azeotropique generee lors de la synthese de l'acrylate de n,n-dimethyl aminoethyle | |
| JPH05503948A (ja) | 共沸補助されたトランスビニル化技術 | |
| JPH0147454B2 (fr) | ||
| EP2807140B1 (fr) | Procede de production d'acrylate de 2-octyle par transesterification | |
| WO2011027070A1 (fr) | Procede de preparation de (meth)acrylates d'alkylimidazolidone | |
| JPS6320415B2 (fr) | ||
| CN106164034A (zh) | 通过酸酐交换合成(甲基)丙烯酸酐 | |
| CN1361761A (zh) | 制备甲基丙烯酸甲酯的方法 | |
| WO2003066562A2 (fr) | PROCEDE DE PREPARATION DE COMPOSES ω-BROMOALKYLCARBOXYLIQUES | |
| WO2024241004A1 (fr) | Procede de purification d'acrylates legers | |
| KR20240050334A (ko) | 고순도 부틸 아크릴레이트의 개선된 제조 방법 | |
| FR3146894A1 (fr) | Procede de purification d’acrylates d’alkyle legers | |
| JPH1160522A (ja) | エステル含有溶媒溶液の精製方法 | |
| FR2847896A1 (fr) | Procede de preparation de 2-bromoalcanoates d'alkyle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20070514 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: ARKEMA FRANCE |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: RIONDEL, ALAIN Inventor name: HERBST, GILLES Inventor name: GENDARME, JEAN-PHILIPPE |
|
| DAX | Request for extension of the european patent (deleted) | ||
| 17Q | First examination report despatched |
Effective date: 20091012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20100423 |