WO2000040536A1 - Process for the production of ketoisophorone derivatives and equipment therefor - Google Patents
Process for the production of ketoisophorone derivatives and equipment therefor Download PDFInfo
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- WO2000040536A1 WO2000040536A1 PCT/JP1999/007245 JP9907245W WO0040536A1 WO 2000040536 A1 WO2000040536 A1 WO 2000040536A1 JP 9907245 W JP9907245 W JP 9907245W WO 0040536 A1 WO0040536 A1 WO 0040536A1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
- B01J31/22—Organic complexes
- B01J31/2204—Organic complexes the ligands containing oxygen or sulfur as complexing atoms
- B01J31/2208—Oxygen, e.g. acetylacetonates
- B01J31/2226—Anionic ligands, i.e. the overall ligand carries at least one formal negative charge
- B01J31/2243—At least one oxygen and one nitrogen atom present as complexing atoms in an at least bidentate or bridging ligand
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/27—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation
- C07C45/32—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen
- C07C45/33—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of CHx-moieties
- C07C45/34—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of CHx-moieties in unsaturated compounds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
- C07C45/67—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/78—Separation; Purification; Stabilisation; Use of additives
- C07C45/81—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation
- C07C45/82—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation by distillation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/02—Compositional aspects of complexes used, e.g. polynuclearity
- B01J2531/0238—Complexes comprising multidentate ligands, i.e. more than 2 ionic or coordinative bonds from the central metal to the ligand, the latter having at least two donor atoms, e.g. N, O, S, P
- B01J2531/0241—Rigid ligands, e.g. extended sp2-carbon frameworks or geminal di- or trisubstitution
- B01J2531/0252—Salen ligands or analogues, e.g. derived from ethylenediamine and salicylaldehyde
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/70—Complexes comprising metals of Group VII (VIIB) as the central metal
- B01J2531/72—Manganese
Definitions
- the present invention relates to a method and an apparatus for producing a ketoisophorone derivative by oxidizing a 3-isophorone derivative.
- Ketoisophorone derivatives [2,6,6—trimethylcyclohex-2-ene-1,4-dione (ketoisophorone, KIP), etc.] are compounds useful as intermediates for pharmaceuticals, pesticides, fragrances, seasonings and polymer resins. Things.
- Japanese Patent Application Laid-Open No. 51-2125316 discloses that ⁇ -ethylenically unsaturated ketone (monoisophorone) is prepared by adding an inorganic base or an organic base and cobalt or manganese acrylate to form a molecular oxygen.
- a method of producing an ethylenically unsaturated dicarboxylic acid (ketoisophorone) by oxidizing with a molecular oxygen-containing gas is disclosed.
- aromatic hydrocarbons, chlorinated aliphatic hydrocarbons, lower aliphatic alcohols, ketones, carboxamides, nitriles, amines or ethers as solvents.
- JP-A-10-535353 discloses a method for producing ketoisophorone in which] 3-isophorone is oxidized using molecular oxygen in the presence of a manganese complex salt and an organic base. This document describes that an oxidation reaction is performed in the presence of water, and that an organic acid such as acetic acid or butyric acid is added as an additive. It also describes the use of ketones (acetone, methyl isobutyl ketone) and ethers as solvents.
- the i3-isophorone can be prepared by isomerizing ⁇ -isophorone in the presence of an isomerization catalyst composed of an acid.
- an isomerization catalyst composed of an acid.
- Japanese Patent Publication No. 54-8660 discloses a method for producing / 3-isophorone by isomerizing «-isophorone and distilling it in the presence of an isomerization catalyst (acid having a ⁇ ⁇ value of 2 to 5). Is disclosed.
- ketoisophorone from ⁇ -isophorone by combining the isomerization reaction and the oxidation reaction.
- the oxidation reaction does not proceed efficiently, and it is difficult to efficiently and continuously produce ketoisophorone.
- Japanese Patent Publication No. 55-36969, Japanese Patent Application Laid-Open No. 61-91645, Japanese Patent Application Laid-Open No. 50-93 No. 947 discloses a method for producing 4-oxoisophorone by oxidizing ⁇ -isophorone with oxygen in the presence of a catalyst.
- Japanese Patent Application Laid-Open No. 49-813477 proposes a method for producing 4-oxoisophorone by oxidizing ⁇ -isophorone using alkali metal chromate or dichromate or chromium trioxide. Have been.
- an object of the present invention is to provide a method and an apparatus for producing a ketoisophorone derivative with high conversion and selectivity.
- Another object of the present invention is to provide a ⁇ -isobutylene derivative obtained from a polyisophorone derivative. It is an object of the present invention to provide a method and a production apparatus capable of continuously and efficiently producing a ketoisophorone derivative even using an isophorone derivative.
- Still another object of the present invention is to provide a method and a production apparatus capable of producing a ketoisophorone derivative without lowering the conversion and selectivity even when the reaction is continuously performed while circulating a solvent. Disclosure of the invention
- the present inventors have conducted intensive studies to achieve the above object, and as a result, have found that in the oxidation reaction of a 3-isophorone derivative, a small amount of an acid component present in a solvent has an adverse effect, and greatly reduces the catalytic activity.
- the present invention has been completed.
- the method for producing a ketoisophorone derivative of the present invention comprises the following formula (1) in the presence of an oxidation catalyst.
- R ′ is the same or different and represents an alkyl group, a cycloalkyl group, an aryl group or a heterocyclic group
- the amount of the acid component in the solvent is about 0 to 400 ppm (weight basis), and the solvent may be a solvent that has been treated with aluminum.
- the acid component is an organic carboxylic acid or the like.
- As the oxidation catalyst a complex salt of a transition metal and N, N'-disalicylidenediamine may be used, and a cyclic base may be used as a promoter.
- the solvent separated from the reaction mixture may be recycled to the oxidation reaction of the / 3-isophorone derivative after removing the acid component.
- a removing device for removing an acid component in a solvent, and an i3-isophorone derivative represented by the above formula (1) in the presence of an oxidation catalyst, a solvent supplied from the removing device.
- a reactor for producing a ketoisophorone derivative represented by the above formula (2) by oxidation in the reactor BRIEF DESCRIPTION OF THE FIGURES
- FIG. 1 is a flow chart for explaining the method and apparatus of the present invention.
- FIG. 2 is a flow chart for explaining another method and other apparatus of the present invention.
- FIG. 1 is a flow chart for explaining the production method and apparatus of the present invention.
- 3-isophorone-derived The ketoisophorone derivative is generated by oxidizing the body (oxidation process), and the ketoisophorone derivative is continuously separated and recovered from the reaction mixture generated in the reactor 1 by the separator (separation step). Has been manufactured.
- the separation device includes a distillation device 2 for removing high-boiling components (HB) among reaction by-products from a reaction mixture generated by the oxidation reaction, and a low-boiling component ( Distillation apparatus 3 for removing LB) and a separation apparatus 4 for removing the low-boiling impurities and high-boiling impurities from the apparatus 3 and separating the reaction mixture into ketoisophorone derivatives and a solvent. It is composed of The solvent separated by the separation device 4 is supplied through a recycling line 9 to an Ari reprocessing device 5a for adding an aqueous alkali solution to the solvent and removing an acid component from the solvent by an alkali washing treatment.
- HB high-boiling components
- Distillation apparatus 3 for removing LB
- a separation apparatus 4 for removing the low-boiling impurities and high-boiling impurities from the apparatus 3 and separating the reaction mixture into ketoisophorone derivatives and a solvent. It
- the mixed solution treated in (1) is supplied to a liquid separating device 5b for separating a solvent layer and an aqueous layer, and is separated into a solvent layer and an aqueous layer.
- the solvent from which the acid component has been removed by the liquid separation device 5b is recycled to the oxidation reaction device 1 through the solvent supply line 6 (recycle step), and is also supplied to the mixing tank 10 with the oxidation catalyst through the branch line.
- the catalyst mixture prepared in the mixing tank 10 is combined with the solvent supply line 6 and supplied to the oxidation reactor 1.
- the distillation apparatus 3 composed of a distillation tower is provided with a dehydration system composed of a cooler 7 and a liquid separation apparatus 8 in order to remove low-boiling components. In Fig. 8, low-boiling components and water are separated.
- the 3-isophorone derivative used in the present invention is, for example, a compound represented by the following formula (3)
- alpha-Isohoron derivatives and 3 - organic carboxylic acids having a boiling point higher than isophorone derivatives for example, C 4 _ 12 dicarboxylic acids (e.g., Darutaru acid, adipic acid, suberic acid, sebacic acid) Etc. can be used.
- C 4 _ 12 dicarboxylic acids e.g., Darutaru acid, adipic acid, suberic acid, sebacic acid
- Etc e.g., Darutaru acid, adipic acid, suberic acid, sebacic acid
- the ⁇ 3-isophorone derivative produced by the isomerization reaction is separated and purified in a batch, semi-batch or continuous manner by means of separation and purification such as distillation, and then supplied to the oxidation step.
- the 3-isophorone derivative represented by the formula (1) is oxidized in a solvent substantially free of an acid component in the presence of an oxidation catalyst, whereby the compound represented by the formula (2) is obtained.
- the resulting ketoisophorone derivative is produced.
- the alkyl group represented by R 1, (: Bok 10 ⁇ alkyl group (methyl, Echiru, butyl, isobutyl, t-butyl, C Le 8 alkyl pentyl into, like hexyl group .
- R 1 is (:. Bok s alkyl group, in particular Al kill group (e.g., methyl group, C 4 a, such Echiru group Kill group) Der You.
- the type of the oxidation catalyst is not particularly limited, and a complex salt (or complex) of a transition metal with N, N'-disalicylidenediamine can be used. Use of such a complex salt is useful for oxidizing a monoisophorone derivative (1) with molecular oxygen to produce a ketoisophorone derivative (2).
- the type or valence of the transition metal is not particularly limited as long as it has an oxidizing ability for the oxidation reaction, and at least one type of transition metal selected from Group 3 to 12 elements of the periodic table is used. it can.
- the valence of the transition metal may be any of divalent to octavalent, and is usually divalent, trivalent, or tetravalent.
- Preferred transition metal elements include, for example, Group 5 elements (such as vanadium V and niobium Nb), Group 6 elements (such as Cr), Group 7 elements (such as manganese Mn and rhenium Re), and Group 8 elements.
- transition metals are V, Mn, Fe, Co, Cu and the like, especially Mn. Such transition metals can be used alone or in combination of two or more.
- the transition metal can form a complex represented by the following formulas (4a) and (4b) together with N, N'-disalicylidenediamine.
- R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 and R 9 may be the same or different and are a hydrogen atom, a halogen atom, an alkyl group, human Dorokishiru group, an alkoxy group, shows the human Dorokishimechiru group, Y 1, Y 2 and Y 3 are the same or different and each represents an alkylene group, shea Kuroarukiren group, a ⁇ Li one alkylene group, ring Z is Represents an aromatic ring, and n is 0 or an integer of 1 or more)
- Examples of the diamines corresponding to Y 1 , Y 2 and Y 3 include linear or branched C 2 — 1 () alkylenediamine, C containing an imino group (NH group).
- aliphatic diamines such as alkylene diamines, alicyclic Jiamin such hexane Jiaminoshikuro, Jiaminobenzen, etc.
- Jiaminonafu evening Ren, Bifue two Rujiamin or C 6 _ 12 aromatic Jiamin of their derivatives can be exemplified.
- N, N '- The di Sari dust Denji ⁇ Min include, for example, N, N' - disalicylidene ethylene ⁇ Min (1 ⁇ 2 salen), N, N 'one di Sari dust dent Li methylenedioxy Amin, N, N 'one disalicylidene - 4 one Aza 1, 7-heptene N such evening Njiamin, N' Jisarichi isopropylidene C 2 - 8 alkylene ⁇ Min (preferably N, N '- Jisarichiri Den C 2 _ 5 alkylene ⁇ Min), N, N '- disalicylidene one o- phenylene Renjiamin, N, N' one disalicylidene one 2, 2 'Bifu Eniri Renjiamin N such, N' - disalicylidene C 6 - 12 Alien Rangeamine etc.
- N, N 'one Jisarichiri Denjiamin acids are, N, N' - disalicylidene ethylene ⁇ Min (H 2 salen), N, N '- N, such as di Sari dust Dent Re methylenedioxy ⁇ Min, N 'single-disalicylidene C 2 - a 4 alkylene ⁇ Min acids.
- the aromatic ring Z includes hydrocarbon rings (benzene, naphthalene, etc.), complex rings (nitrogen-containing heterocycles such as pyridine, virazine, pyrimidine, quinoline, etc., sulfur atom-containing heterocycles such as thiophene, furan, etc.) And oxygen atom-containing heterocycles.
- the halogen atom includes bromine, chlorine, and fluorine atoms
- the alkyl group includes methyl, ethyl, propyl, butyl, t-butyl and the like.
- C alkyl groups are included.
- the alkoxy group include C 6 alkoxy groups such as methoxy, ethoxy, propoxy, and butoxy groups.
- Substituents R 2 to R 9 are usually hydrogen atoms, Bok 4 alkyl or arsenate Dorokishimechiru group.
- the complex may be non-crystalline, or may be crystalline like the compound represented by the formula (4b).
- n is 0 or an integer of 1 or more (for example, 1 to 5, particularly about 1 or 2).
- the complex represented by the formula (4b) has a structure in which N + 1 mol of N, N'-disalicylidenediamine is coordinated with respect to n mol of the transition metal.
- N ' which is structurally different from the complex represented by formula (4a) in which 1 mol of disalicylidenediamine is coordinated.
- the complex (4a) is amorphous, while the complex (4b) is crystalline, and shows a clear melting point in thermal analysis by TCTDDA.
- the melting point of the complex (4b) is usually about 190 to 240 ° C, particularly about 200 to 220 ° C.
- complex (4a) and complex (4b) also depend on the presence or absence of an absorption peak derived from a hydroxyl group in the infrared absorption spectrum. Can be distinguished.
- Preferred complexes manganese, N, N 'one disalicylidene E Ji Renjiamin (1 ⁇ 2 salen), N, N' - di Sari Chile dent Increment Chile Njiamin such as N, N '- disalicylidene C 2 - 4
- complexes with alkylene diamines especially manganese and N, N'-disalicylideneethylenediamine (manganese-salen complex).
- the complex can be obtained by coordinating an excess amount of N, N'-disalicylidenediamine to the transition metal compound.
- the transition metal compound include an organic acid salt (eg, an acetate), a halide (eg, manganese chloride), and an inorganic acid salt.
- the reaction between the transition metal compound and ⁇ , ⁇ '-disalicylidenediamine can be carried out in an inert solvent (eg, an organic solvent such as an alcohol).
- the reaction can be carried out by stirring in an inert gas atmosphere, usually at 70 ° C to the reflux temperature of the solvent.
- the complex salt may constitute a catalyst system by being combined with a nitrogen-containing compound as a promoter.
- the nitrogen-containing compound includes at least one component selected from a cyclic base and an acyclic base.
- Preferred catalyst systems include: (1) a combination of the complex salt or complex with a cyclic base; (2) a combination of the complex salt or complex with a cyclic base and a non-cyclic base; and (3) a combination of the complex and the non-cyclic base. Can be configured in combination.
- cyclic base examples include alicyclic and aromatic bases having at least one (preferably two) nitrogen atoms.
- the alicyclic base includes a base in which at least one nitrogen atom forms a ring as a hetero atom, for example, pyrrolidine or a derivative thereof [N-substituted pyrrolidine (N-C 4- alkylpyrrolidine, etc.), substituted pyrrolidine (2- or 3-methylpyrrolidine, 2- or 3-amino pyrrolidine)], piperidine or its derivatives
- N-substituted piperidines such as N-C, _4 alkylpiperidine and piperylhydrazine such as N-methylbiperidine
- substituted piperidines such as o-, m-, and p-aminobiperidine
- piperidines Rajin or a derivative conductor such as N- methyl piperazine N- C! _ 4 Arukirupi Bae Rajin, N, N 'one dimethyl bi prochlorperazine etc.
- alicyclic bases having at least two (particularly 2 to 6) nitrogen atoms (such as polycyclic heterocyclic compounds having a nitrogen atom at the bridgehead position).
- Preferred alicyclic bases include 6- to 8-membered monocyclic heterocyclic compounds (piperazine, N-substituted piperazine, amino-substituted piperazine, etc.), azabicyclo C? Pyridine, DABCO or derivatives thereof), hexamethylenetetramamine and the like.
- the aromatic base includes an aromatic base having at least two nitrogen atoms, of which at least one nitrogen atom forms a ring as a hetero atom.
- aromatic bases include those in which at least one nitrogen atom forms a ring as a heteroatom.
- Compounds obtained by substituting a heterocyclic compound (pyridine, etc.) with a substituent having at least a nitrogen atom eg, amino group, N-substituted amino group, etc.
- a substituent having at least a nitrogen atom eg, amino group, N-substituted amino group, etc.
- a substituent having at least a nitrogen atom eg, amino group, N-substituted amino group, etc.
- the nitrogen atom other than the nitrogen atom as a hetero atom constituting the ring is preferably a tertiary amine, and the nitrogen atom as a hetero atom constituting the ring is also hydrogen.
- a substituent other than an atom may be substituted.
- the cyclic bases can be used alone or in combination of two or more.
- a non-cyclic base such as a Schiff salt may be used together with or instead of the cyclic base.
- the Schiff base include a compound having an imino bond or an annel bond.
- Such Schiff bases include, for example, compounds represented by the following formulas (5a) to (5h) or compounds having structures similar to these.
- R 1Q and R 11 are the same or different and each represent a hydrogen atom, an alkyl group, an aryl group, or a cycloalkyl group;
- R 12 represents a hydroxyyl group, an amino group, an alkyl group, or an aryl group;
- R 13 represents a hydroxyl group, an amino group, an alkyl group, an aryl group or a pyridyl group,
- Y 4 represents an alkylene group or a cyclohexylene group.
- Preferred acyclic bases include salicylaldoxime, bisacetyl acetoneethylenedimine, dimethyldalioxime, diaminesalicylaldimines constituting the complex (for example, N, N′-disalicylideneethylenediamine, N , N 'one di Sari dust dent Increment Chile Njiamin, N, N' - disalicylidene - 4 ⁇ the - 1, 7-heptene N such evening Njiamin, N '- disalicylidene C 2 - 5 Arukirenjia Min, etc.), and Bisuimin Compounds having an imino bond, such as compounds, and compounds having an anil bond, such as glycoxalbishydroxyanil, are included.
- the N, N-disalicylidenediamines constituting the complex include a ligand of the complex represented by the formula (1).
- the amount of the oxidation catalyst or co-catalyst, relative to 3- isophorone derivative 1 mol, the oxidation catalyst 1 X 1 0- 5 ⁇ 1 X 1 0- 2 mol (preferably 1 X 1 0- 4 ⁇ 1 X 1 0- 3 mol) about the annular base 5 X 1 0- 2 ⁇ 1 mol (preferably 1 X 1 0- 2 ⁇ 0. 5 moles) about an acyclic nucleotide 1 X 1 0- 5 ⁇ 5 X 1 0-2 moles (preferably 1 X 1 0- 3 ⁇ 5 X 1 0 "3 mol) approximately.
- Oxygen sources for the oxidation reaction include oxygen and oxygen-containing gas, as well as molecular acids Compounds that generate oxygen can be used as long as they can supply oxygen.
- oxygen source for example, a high-purity oxygen gas may be used, but it is preferable that the oxygen source be diluted with a gas inert to the reaction, for example, nitrogen, helium, argon, carbon dioxide or the like, and then supplied to the reaction system.
- the i3-isophorone derivative can be effectively oxidized even when air is used as an oxygen source instead of oxygen.
- the oxygen concentration in the oxygen source is, for example, 5 to 100% by volume, preferably 5 to 50% by volume, particularly about 7 to 30% by volume, and a low oxygen concentration of about 8 to 25% by volume. Even if it does, the oxidation reaction proceeds effectively.
- a sufficient amount of molecular oxygen may be supplied in advance, and then the reaction may be performed in a closed system, or the reaction may be performed by continuously flowing molecular oxygen.
- the flow rate of the oxygen and oxygen that are continuously passed is, for example, about 0.1 to 10 L / min, preferably about 0.5 to 5 LZ per 1 L of unit volume.
- a solvent substantially free of an acid component for example, a protic acid having a pKa of 5 or less, particularly an organic carboxylic acid (C! -Aliphatic carboxylic acid, etc.)
- the ketoisophorone derivative (2) can be produced with high conversion and selectivity while maintaining high catalytic activity.
- the origin of the acid component cannot be determined in particular, but many originate from the decomposition products in the oxidation reaction process.
- oxidative decomposition products of solvents such as diisobutyl ketone
- C carboxylic acid such as formic acid, acetic acid, isobutyric acid, and isovaleric acid
- Manufacturing process of 3-isophorone derivatives isomerization process of ⁇ -isophorone
- By-products valeric acid, butyric acid, etc.
- the amount of the acid component in the solvent may be, for example, about 0 to 400 ppm (by weight), preferably about 0 to 2000 ppm (by weight), and more preferably about 0 to 400 ppm. It is about 900 ppm (weight basis).
- the type of the solvent is not particularly limited as long as the reaction is not hindered. Solvents that can be separated from water (or solvents that can be separated from water), such as water-insoluble or hydrophobic solvents, especially water Immiscible solvents are used.
- the solvent examples include aliphatic hydrocarbons such as hexane, heptane, and octane; aromatic hydrocarbons such as benzene, toluene, and xylene; alicyclic hydrocarbons such as cyclohexane; methyl ethyl ketone; dibutyl ketone (Such as dibutyl ketone, diisobutyl ketone, di-t-butyl ketone, etc.) (especially dialkyl ketones), getyl ether, diisopropyl ether, dibutyl ether, tetrahydrofuran, dioxane, ethylene glycol monomethyl ether, ethylene Ethers such as glycol dimethyl ether, diethylene glycol monomethyl ether, diethylene glycol dimethyl ether, monochloroethane, dichloroethane, chloroform, carbon tetrachloride, 1,2-dichloromethane Halogenated hydrocarbon
- the solvent used in the present invention a commercially available product may be used, and a recovered solvent obtained by collecting the solvent once used in the oxidation reaction through the recycling line 9 may be reused through the solvent supply line 6. It is usually more economical and advantageous to reuse the recovered solvent.
- the substrate concentration of the reaction system is not particularly limited, it can be generally selected from a range of about 5 to 70% by weight, preferably about 15 to 60% by weight (for example, 20 to 55% by weight).
- the proportion of water contained in the reaction system at the start of the reaction can be selected within a range that does not adversely affect the activity of the oxidation catalyst, etc., and is preferably 1% by weight or less (from 0.001 to about I% by weight), and is preferable. Is 0.5% by weight or less (about 0.001 to 0.5% by weight). If the proportion of water exceeds 1% by weight, Although the reaction is promoted in the lower layer, the subsequent reaction may be stopped or the selectivity to the ketoisophorone derivative may be reduced. Furthermore, the reaction system includes not only water contained at the start of the reaction but also water produced by the reaction. In this reaction system, a finite amount of water is usually present.
- water in the oxidation reaction system (particularly water generated by the reaction) can be separated in the separation step described below and removed from the reaction system.
- the amount of water removed outside the reaction system is at least 30% by weight, preferably at least 50% by weight, and more preferably at least about 80% by weight.
- the reaction temperature can be selected according to the reaction rate, selectivity, and the solvent used. From the viewpoint of avoiding the danger of explosion, it is desirable to carry out the reaction at a temperature lower than the flash point of the reaction solvent. For example, when diisobutyl ketone (flash point about 49 ° C) is used as a solvent, The reaction can be performed at a temperature of about 35 to 45 ° C.
- the reaction pressure may be normal pressure or pressurization (to about: 150 atm), but is usually normal pressure.
- the reaction time (residence time in a flow-type reaction) is not particularly limited, and is usually about 0.5 to 30 hours (1 to 10 hours).
- a gas-liquid stirring type oxidation reactor can be used, and the oxygen supply amount and stirring conditions may affect the reaction selectivity.
- Preferred reactors are those with high agitation efficiency, such reactors comprising disk turbine blades (eg, 4-8 blades) in multiple stages (eg, two stages) and Z or one or more baffles. (For example, 2 to 6).
- oxygen may be supplied by spouting into the reaction system as bubbles by a sparger.
- the stirring power of the reactor per unit volume can be selected, for example, from a range of about 0.5 to 5 kw / m 3 (preferably 0.5 to 2.5 kw / m 3 ).
- the order of addition of the raw materials to the reaction system is not particularly limited, components other than the / 3-isophorone derivative (oxidation catalyst, etc.) are added to the reactor at the beginning of the reaction in order to suppress isomerization to ⁇ -isophorone derivative.
- the isofolone derivative is supplied or charged last.
- the i3-isophorone derivative may be continuously or intermittently supplied to the reaction system by a method such as dropping.
- the ketoisophorone derivative, solvent, low-boiling impurities and high-boiling point are obtained from the reaction mixture generated by the oxidation reaction using at least one purification means (distillation device, separation device, etc.).
- the acid component is removed from the separated solvent by the alkali treatment device 5a and the liquid separation device 5b, and then the solvent is sent to the oxidation process through the solvent supply line 6 in the recycling process. Circulating.
- the reaction mixture from the bottom of the oxidation reactor 1 is subjected to the first separation step to separate high-boiling impurities such as an oxidation catalyst.
- This separation step can be carried out by a conventional method, for example, a distillation column 2 (particularly, a flash distillation apparatus).
- a conventional apparatus for example, WFE (Wiped Film Evaporator), FFE (Falving Film Evaporation) or the like can be used.
- the flash distillation can be selected depending on the type of the catalyst component. For example, the temperature is about 80 to 150 ° C (preferably 90 to L: 20 ° C), and the pressure is 13 to 13 hours.
- the oxidation catalyst can be recovered from the bottom of the column, and a distillate mainly composed of a ketoisophorone derivative, a solvent, and low-boiling impurities is distilled off from the top of the column.
- the oxidation catalyst recovered from the bottom of the distillation column 2 can be reused directly or as needed by regenerating it and recycling it to the oxidation step.
- the distillate distilled off from the top of the distillation column 2 is further subjected to a second separation step to remove low boiling impurities (reaction by-products and the like).
- Raw materials / low-boiling point components (impurities) / 3-isophorone derivative manufacturing process Components produced by the (isomerization step of ⁇ -isophorone) (especially decomposition products of the isomerization catalyst), for example, cyclic ketones, compounds containing hydroxyl groups (alcohols such as cyclic alcohols), compounds containing carboxyl groups (Carboxylic acids such as cyclic carboxylic acids).
- the boiling point of the low-boiling components (impurities) is usually from 100 to 180 ° C (for example, from 100 to 160 ° C), and particularly from about 120 to 140 ° C.
- separation means for example, separation means such as concentration, distillation and extraction, or separation means combining these can be adopted.
- separation means such as concentration, distillation and extraction, or separation means combining these
- a distillation column or a rectification column
- the distillation column may be either a packed column or a tray column.
- the removal of low boiling components may be performed in one separation step, or may be performed by combining a plurality of separation steps.
- the number of stages of the distillation column is not particularly limited, and is, for example, about 5 to 50, preferably about 5 to 30. You may.
- the top temperature is about 30 to 80 ° C (preferably 30 to 70 ° C)
- the bottom temperature is 80 to: 150 ° C (preferably 100 to 130).
- ° C) at a pressure of 17 to 26 h h Pa (20 to 200 mmHg) (preferably 53 to 20011? 3 (40 to 15011 mHg)) Yes, it can be carried out by a conventional method, for example, by refluxing at an appropriate reflux ratio (for example, about 0.5 to 5, preferably about 1 to 3).
- distillation column 3 distillation column 3
- cooling of low-boiling components distilled as necessary cooling of low-boiling components distilled as necessary
- the number of stages of the distillation column may be 10 to 80, and preferably about 20 to 50.
- the top temperature is about 30 to 100 ° C (preferably 50 to 80 ° C)
- the bottom temperature is 120 to 200 ° C (preferably 150 ° C).
- pressure 7 ⁇ 13 3 hPa (5 ⁇ : L0 0 mmHg) (preferably 13 ⁇ 67 hPa (10 ⁇ 50 mmHg))
- the reaction can be carried out by a conventional method, for example, by refluxing at an appropriate reflux ratio (for example,:! To 5, preferably about 1 to 3).
- a solvent capable of distilling the ketoisophorone derivative according to the boiling points of the ketoisophorone derivative and the solvent usually a solvent having a boiling point lower than that of the ketoisophorone derivative is distilled.
- the ketoisophorone derivative is preferably recovered from the distillation column (recovery column) in a side cut (for example, from the bottom 40 to 80% of the number of stages).
- distillation column 2 From the bottom of the distillation column, high-boiling impurities (oxidation catalysts) that cannot be completely removed by the distillation column 2 are distilled off.
- the distillate may be recycled to the distillation column 2 as needed to separate the high-boiling impurities and the ketoisophorone derivative to a higher degree.
- the solvent (recovery solvent) separated from the ketoisophorone derivative usually contains an acid component (such as an organic carboxylic acid), the acid component is removed.
- an acid component such as an organic carboxylic acid
- Such an acid component can be removed by various physical or chemical methods, and may be removed by, for example, adsorption or distillation.
- the alkali treatment include a method of removing an acid component by contacting (passing) a solid alkaline component with a solvent, mixing an alkaline aqueous solution (or slurry) with a solvent, and then separating the liquid. Method (alkaline washing).
- Figure 2 shows another method of alkaline cleaning.
- the keto isophorone production equipment consists of an oxidation reactor 1 for oxidizing the i3-isophorone derivative to produce a ketoisophorone derivative, and a distillation apparatus 2 for removing high boiling impurities from the reaction mixture of the oxidation reaction.
- a separation device 4 The solvent separated by the separation device 4 is supplied to a removal device 5 for alkali washing, and the removal device 5 mixes the solvent with an alkali aqueous solution (or slurry) and then separates the solvent. Acid components have been removed.
- alkali used in the alkali treatment examples include hydroxides or salts of alkali metals (lithium, sodium, potassium, etc.) or alkaline earth metals (magnesium, calcium), such as alkali metal hydroxides (eg, hydroxides).
- alkali metal hydroxides eg, hydroxides
- metal hydrogen carbonate eg, lithium hydrogen carbonate, sodium hydrogen carbonate, potassium hydrogen carbonate, etc.
- alkali metal carbonate lithium carbonate, sodium carbonate, potassium hydrogen carbonate, etc.
- alkali metal carbonate lithium carbonate, sodium carbonate
- potassium hydrogen carbonate alkali metal carbonate
- potassium carbonate alkali metal carbonate
- potassium carbonate alkali metal carbonate
- potassium carbonate lithium carbonate, sodium carbonate
- Potassium carbonate etc.
- alkaline earth metal hydroxides magnesium hydroxide, calcium hydroxide, etc.
- alkaline earth metal carbonates magnesium carbonate, calcium carbonate, etc.
- ammonia or an organic base such as amines
- Preferred alkalis are alkali metal hydroxides (such as lithium hydroxide, sodium hydroxide, potassium hydroxide, etc.).
- an aqueous solution having a pH of 8 or more can be used.
- the concentration of the alkaline aqueous solution (or slurry) can be selected from a wide range, but usually, can be selected from a range in which operability is good, for example, about 10 to 90% by weight, preferably about 15 to 60% by weight. is there.
- the concentration of the aqueous alkali solution may be adjusted to about 20 to 50% by weight, especially about 30 to 45% by weight.
- the useful components contained in the recovered solvent for example, cyclic bases (DABC ⁇ ), acyclic bases, and the like can be reduced from being dissolved and removed by the aqueous solution.
- the recovered solvent from which the acid component has been removed in this way is recycled to the oxidation reactor 1 through the solvent supply line 6.
- the recovery solvent from which the acid component has been removed and the oxidation catalyst may be mixed in the mixing device 10, and this mixture is recycled to the oxidation reactor 1 through the solvent supply line 6.
- the oxidation reaction may be performed in a solvent containing substantially no acid component, and the reaction may be performed not only in a continuous system but also in a semi-batch system or a batch system.
- the apparatus in Figure 1 is often used to produce ketoisophorone derivatives in a continuous manner, whereas the apparatus in Figure 2 is used in batch or semi-batch production of ketoisophorone. You may.
- distillation of the high-boiling component, the low-boiling component, the ketoisophorone derivative and the solvent is not limited to one distillation column, and a plurality of distillation columns may be used if necessary.
- a distillation tower may be used.
- the distillation may be batch distillation, but industrially continuous distillation is advantageous.
- the low-boiling components are removed, and the high-boiling components (oxidation catalysts) are removed. ) May be separated to recover the oxidation catalyst.
- a ketoisophorone derivative can be produced at a high conversion and selectivity because the oxidation reaction is performed using a solvent substantially free of an acid component.
- ketoisophorone derivatives can be produced stably, continuously and efficiently from 3-isophorone derivatives.
- the ketoisophorone derivative can be produced without reducing the conversion and the selectivity even if the reaction is continuously performed while circulating the solvent.
- a ketoisophorone derivative was obtained through an isomerization reaction and an oxidation reaction as follows.
- the distillate from the top of the distillation column 2 was supplied to the bottom of an old distillation column with vacuum jacket (1Q stage, 40 mm ⁇ ) at a supply rate of 600 g / hr and a pressure of 5 g / hr. While only the upper layer of the distillate was refluxed in the column at 3 hPa (40 mmHg), the low-boiling component (LB) and water produced by the reaction were distilled off. The bottom temperature was 115 ° C (: the distillate temperature was 35 ° C.
- the distillate (KIP, solvent DIBK, cocatalyst DABCO, acid component) from the bottom of the Oldashaw distillation column was transferred to an Oldashaw distillation column equipped with a vacuum jacket (30 stages, 4 Omm ⁇ ).
- feed at a feed rate of 600 hZhr distill at a pressure of 40 hPa (30 mmHg) and a reflux ratio of 2.0 to separate KIP and DIBK.
- Separation Purified 956 g of KIP was obtained by distilling out KIP as a side-cut solution from the second and third stages of the tray.
- the distillate from the top (DIBK, DABC ⁇ , acid component) of 1657 g was supplied to a separatory vessel equipped with a stirrer, and the bottoms were supplied to a flash distillation column.
- the bottom temperature is 1 6 2.
- the temperature of the side cut stage is 1 3
- the temperature of the 1 ° C distillate was 74 ° C.
- Example 2 The operation was performed in the same manner as in Example 1 except that a solvent containing 500 ppm of an acid component (acetic acid) was used as the oxidation step. Analysis of the reaction mixture by gas chromatography showed a conversion of 29% and a selectivity of 81%.
- an acid component acetic acid
- Example 2 Using the recovered solvent before removing the acid component obtained in Example 1, 97 g of the recovered solvent and 3 g of an aqueous sodium hydroxide solution were stirred and mixed, and the distribution of DABCO was examined. Table 1 shows the results. Sodium hydroxide aqueous solution concentration Distribution rate (concentration in organic layer (wt%): concentration in aqueous layer (wt%))
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- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
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- Crystallography & Structural Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
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Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/623,081 US6410797B1 (en) | 1998-12-28 | 1999-12-24 | Process for the production of ketoisophorone derivatives and equipment therefor |
| EP99961341A EP1067107A4 (en) | 1998-12-28 | 1999-12-24 | PROCESS FOR PRODUCING CETOISOPHORONE DERIVATIVES AND INSTALLATION THEREFOR |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP37278398 | 1998-12-28 | ||
| JP10/372783 | 1998-12-28 | ||
| JP11362478A JP2000247921A (ja) | 1998-12-28 | 1999-12-21 | ケトイソホロン誘導体の製造方法及び製造装置 |
| JP11/362478 | 1999-12-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2000040536A1 true WO2000040536A1 (en) | 2000-07-13 |
Family
ID=26581396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1999/007245 Ceased WO2000040536A1 (en) | 1998-12-28 | 1999-12-24 | Process for the production of ketoisophorone derivatives and equipment therefor |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6410797B1 (ja) |
| EP (1) | EP1067107A4 (ja) |
| JP (1) | JP2000247921A (ja) |
| WO (1) | WO2000040536A1 (ja) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020055657A1 (en) * | 1998-07-16 | 2002-05-09 | Daicel Chemical Industries,Ltd. | Process and apparatus for producing ketoisophorone |
| KR20140032937A (ko) * | 2010-10-01 | 2014-03-17 | 우베 고산 가부시키가이샤 | 탄화수소 화합물의 산화 촉매, 및 그것을 이용한 탄화수소 화합물의 산화물의 제조 방법 및 제조 장치 |
| CN108911954B (zh) * | 2018-08-01 | 2021-03-16 | 福建省福抗药业股份有限公司 | 一种三甲基氢醌的制备方法 |
| CN109438199B (zh) * | 2018-09-20 | 2020-04-07 | 山东新和成维生素有限公司 | 一种连续高效氧化制备2,6,6-三甲基-2-环己烯-1,4-二酮的方法 |
| CN114315541B (zh) * | 2022-01-17 | 2024-06-25 | 万华化学(四川)有限公司 | 一种环己酮组合物及其应用 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0311408A2 (en) * | 1987-10-06 | 1989-04-12 | Soda Aromatic Company, Limited | Process for preparing 3,5,5-trimethylcyclohexa-2-en-1,4-dione |
| US4845303A (en) * | 1987-10-17 | 1989-07-04 | Huels Aktiengesellschaft | Procedure for the production of beta-isophorone from alpha-isophorone |
| JPH1053553A (ja) * | 1996-05-15 | 1998-02-24 | Degussa Ag | 3,5,5−トリメチルシクロヘキス−2−エン−1,4−ジオンの製造法 |
| JPH1149717A (ja) * | 1997-08-01 | 1999-02-23 | Nippon Petrochem Co Ltd | 4−オキソイソホロンの製造法 |
| EP0962252A2 (en) * | 1998-06-01 | 1999-12-08 | Daicel Chemical Industries, Ltd. | Manganese complex oxidation catalyst and use thereof |
| JP2000034255A (ja) * | 1998-07-16 | 2000-02-02 | Daicel Chem Ind Ltd | ケトイソホロンの製造方法および製造装置 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH559156A5 (ja) | 1972-11-16 | 1975-02-28 | Firmenich & Cie | |
| CH586173A5 (ja) | 1973-12-07 | 1977-03-31 | Firmenich & Cie | |
| CH605535A5 (ja) * | 1974-04-11 | 1978-09-29 | Hoffmann La Roche | |
| CH611590A5 (en) | 1974-06-28 | 1979-06-15 | Hoffmann La Roche | Process for the preparation of a diketo compound |
| JPS61191645A (ja) | 1985-02-20 | 1986-08-26 | Sagami Chem Res Center | オキソホロンの製造方法 |
| JPH01125315A (ja) | 1987-11-09 | 1989-05-17 | Lion Corp | 口腔用組成物 |
| US5545761A (en) * | 1994-11-14 | 1996-08-13 | Aristech Chemical Corporation | Method of making ketoisophorone via oxidation of isophorone with tert-butyl hydroperoxide |
| JPH11149717A (ja) | 1997-11-19 | 1999-06-02 | Toshiba Corp | デコード処理方法及び装置 |
-
1999
- 1999-12-21 JP JP11362478A patent/JP2000247921A/ja active Pending
- 1999-12-24 WO PCT/JP1999/007245 patent/WO2000040536A1/ja not_active Ceased
- 1999-12-24 US US09/623,081 patent/US6410797B1/en not_active Expired - Fee Related
- 1999-12-24 EP EP99961341A patent/EP1067107A4/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0311408A2 (en) * | 1987-10-06 | 1989-04-12 | Soda Aromatic Company, Limited | Process for preparing 3,5,5-trimethylcyclohexa-2-en-1,4-dione |
| US4845303A (en) * | 1987-10-17 | 1989-07-04 | Huels Aktiengesellschaft | Procedure for the production of beta-isophorone from alpha-isophorone |
| JPH1053553A (ja) * | 1996-05-15 | 1998-02-24 | Degussa Ag | 3,5,5−トリメチルシクロヘキス−2−エン−1,4−ジオンの製造法 |
| JPH1149717A (ja) * | 1997-08-01 | 1999-02-23 | Nippon Petrochem Co Ltd | 4−オキソイソホロンの製造法 |
| EP0962252A2 (en) * | 1998-06-01 | 1999-12-08 | Daicel Chemical Industries, Ltd. | Manganese complex oxidation catalyst and use thereof |
| JP2000034255A (ja) * | 1998-07-16 | 2000-02-02 | Daicel Chem Ind Ltd | ケトイソホロンの製造方法および製造装置 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP1067107A4 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US6410797B1 (en) | 2002-06-25 |
| EP1067107A4 (en) | 2005-05-11 |
| EP1067107A1 (en) | 2001-01-10 |
| JP2000247921A (ja) | 2000-09-12 |
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