WO2006025182A1 - α,β-不飽和カルボン酸エステルの製造方法及びα,β-不飽和カルボン酸エステル - Google Patents
α,β-不飽和カルボン酸エステルの製造方法及びα,β-不飽和カルボン酸エステル Download PDFInfo
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- WO2006025182A1 WO2006025182A1 PCT/JP2005/014325 JP2005014325W WO2006025182A1 WO 2006025182 A1 WO2006025182 A1 WO 2006025182A1 JP 2005014325 W JP2005014325 W JP 2005014325W WO 2006025182 A1 WO2006025182 A1 WO 2006025182A1
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- 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
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- the present invention relates to a method for producing an ⁇ ,; 3-unsaturated carboxylic acid ester and an ⁇ ,; 3-unsaturated carboxylic acid ester. Specifically, the present invention relates to a method for producing an ⁇ , ⁇ unsaturated carboxylic acid ester using a solid acid as a catalyst, and the obtained ⁇ , ⁇ unsaturated carboxylic acid ester.
- solid acid catalysts examples include ion-exchange resins (such as sulfonated styrene-dibutylbenzene copolymer) (see Patent Documents 1 and 2 below) and solid superacids such as phosphotungstic acid (see Patents below).
- ion-exchange resins such as sulfonated styrene-dibutylbenzene copolymer
- solid superacids such as phosphotungstic acid
- Reference 3 sulfonic acid-containing fluororesins (Du_Pont "Nafion", etc.) have been proposed.
- Patent Document 1 US Patent No. 6087527
- Patent Document 2 WO90 / 08127 pamphlet
- Patent Document 3 US Patent No. 5827939
- An object of the present invention is to provide a method for producing a ⁇ -unsaturated carboxylic acid ester that does not generate a large amount of waste.
- Another object of the present invention is to provide a method for producing a high-purity ⁇ , ⁇ -unsaturated carboxylic acid ester with less by-products.
- Still another object of the present invention is to provide a method for producing an ⁇ , ⁇ unsaturated carboxylic acid ester which is less corrosive to metals with less catalyst residue.
- Still another object of the present invention is to provide a high-purity ⁇ , ⁇ -unsaturated rubonic acid ester obtained by the above production method.
- the process for producing ⁇ , monounsaturated carboxylic acid ester according to the present invention comprises alcohol ( ⁇ ), and / 3-unsaturated carboxylic acid in the presence of a sulfonic acid group-supporting organic porous material (H). Or a reaction with the lower alkyl ester ( ⁇ ⁇ ⁇ ⁇ ).
- the ⁇ , monounsaturated carboxylic acid ester of the present invention comprises an alcohol (A) and a 3,3-unsaturated carboxylic acid or a lower alkyl thereof in the presence of the sulfonic acid group-supporting inorganic porous material (a).
- the sulfur atom content is 50 ppm or less based on the weight of the ⁇ , ⁇ unsaturated carboxylic acid ester, and is a by-product ether compound and a by-product addition product.
- Narubutsu Gahi based on the moles of ⁇ - unsaturated carboxylic acid ester shed is 2 mol 0/0 or less, and 1 mol% or less, respectively, a ⁇ - unsaturated carboxylic acid ester.
- examples of the alcohol include monohydric alcohol (A1) and dihydric or higher polyhydric alcohol ( ⁇ 2).
- Examples of (A1) include the following.
- (Al 1) saturated aliphatic monohydric alcohol [C1-C36 linear or branched alcohol such as methyl alcohol, ethyl alcohol, ⁇ -propyl alcohol, isopropylenoreconole, butinorenoreconole, 2- Ethenolehexanolenoreconole, Otacinoreanolol, Noel alcohol, Decyl alcohol, Undecyl alcohol, Dodecyl alcohol, Tridecyl alcohol, Tetradecyl alcohol, Hexadecyl alcohol, Otadecyl alcohol, Nonadecyl alcohol , 2-decyltetradecyl alcohol, 2-tetradecyloctadecyl alcohol, etc.];
- (A12) Unsaturated aliphatic monohydric alcohol [C2-C36 straight chain or branched alcohol, such as butyl alcohol, (meth) aryl alcohol, otatur alcohol, decenoleaanolecanol, dodece Ninolea Recole, Tridecenino Reno Recore, Pentadecenirea Norecol, Ololeic Alcohol, Gadrel Alcohol, Linoleyl Alcohol etc.];
- Alicyclic monohydric alcohol (Alcohol having an alicyclic group and having 6 to 36 carbon atoms, such as ethylcyclohexyl alcohol, propylcyclohexyl alcohol, octyl cyclohexenorea renoole, noninorecyclohexino Reano record, adamantino rare record, etc.];
- (A15) a monovalent alcohol having a nitrogen atom, a sulfur atom and / or a halogen atom [alcohol in which a part of the above (Al 1) to (A14) is substituted with a nitrogen atom, a sulfur atom and / or a halogen atom-containing group, For example, dimethylaminoethanol, jetylaminoethanol, morpholinoethanol, 2-necked ethanol, etc.]; (A16) Alkylene oxides of the alcohols (Al :!) to (A15) (hereinafter abbreviated as AO) [C2-C8 ones such as ethylene oxide (hereinafter abbreviated as E0), propylene oxide ( Hereinafter, abbreviated as P ⁇ ), 1, 2_ or 2, 3-butylene oxide, tetrahydrofuran and styrene oxide] addition products (addition mole number 1 to 50);
- (A21) Dihydric alcohol [Alkylene glycol having 2 to 12 carbon atoms (ethylene glycol, 1,2-propylene glycol, 1,3-propylene glycol, 1,4-butylene glycol and 1,6-hexanediol, etc.) Polymerization degree 2 to: 1,000 polyalkylene glycols (such as diethylene glycol, triethylene glycol, dipropylene glycol, polyethylene glycol, polypropylene glycol, and polybutylene glycol), alicyclic diols (with alicyclic groups) Diols having a total carbon number of 6 to 36, such as 1,4-cyclohexanedimethanol and hydrogenated bisphenol A, etc., and AO adducts of these dihydric alcohols (additional moles 1 to 50) and bis Of phenols (such as bisphenol A, bisphenol F and bisphenol S) AO adduct (additional monole number 2 to 30) (AO is the same as described above)]
- (A22) Tri- to 8- or higher-valent aliphatic polyhydric alcohol [alkane polyol and its intramolecular or intermolecular dehydrate (glycerin, trimethylolpropane, pentaerythritol, sorbitol, sorbitan, polyglycerin, and dipentaerythritol) , Sugars and derivatives thereof (such as sucrose and methyldarcoside), and AO adducts of the above aliphatic polyvalent alcohols (addition mole number 1 to 50)];
- (A) preferred are monohydric alcohols (A1) or dihydric to bivalent polyhydric alcohols and their AO adducts, and more preferred are (A1).
- (A1) Preferred among (A1) are (Al l), (A12), (A15) and their AO adducts. Particularly preferred is a saturated aliphatic monohydric alcohol having 8 to 32 carbon atoms and its AO (especially E0) adduct of (Al l) from the viewpoint that a highly pure product is easily obtained. is there.
- the hydroxyl group contained in (A) includes a primary hydroxyl group and a secondary hydroxyl group, with a primary hydroxyl group being preferred.
- ⁇ -unsaturated carboxylic acid (B1) in ⁇ -unsaturated carboxylic acid or its lower alkyl ester ( ⁇ ⁇ ⁇ ⁇ ) (hereinafter sometimes simply referred to as ( ⁇ )) is used.
- aliphatic ⁇ , ⁇ -unsaturated monocarboxylic acids such as (meth) acrylic acid and crotonic acid
- aliphatic ⁇ , ⁇ unsaturated dicarboxylic acids such as maleic acid, fumaric acid, itaconic acid, citraconic acid
- esters methyl ester, ethyl ester, isopropyl ester, etc.
- an alcohol having an alkyl group having 1 to 4 carbon atoms are included. Can be mentioned.
- (B1) from the viewpoint that a highly pure ester can be obtained, and more preferred is from the viewpoint that the amount of the attached product as a by-product is small.
- Aliphatic ⁇ ; 3-unsaturated monocarboxylic acids, particularly preferred are acrylic acid and methacrylic acid from the viewpoint of excellent polymerizability of the obtained ⁇ ,; 3-unsaturated rubonic acid ester.
- the sulfonic acid group-supporting inorganic porous material (ii) in the present invention (hereinafter sometimes simply referred to as (iii)) is obtained by immobilizing and supporting a sulfonic acid group-containing compound on the inorganic porous material. And serves as a catalyst for the esterification reaction of (i) and (ii).
- the inorganic porous material a known inorganic porous material can be used, and examples thereof include an inorganic porous material made of one or more inorganic materials selected from the group consisting of silica, alumina, titania, magnesia and zirconia.
- silica is used as an inorganic porous material made of silica; alumina gel is used as an inorganic porous material made of alumina; zeolite is used as an inorganic porous material made of silica and alumina; and other inorganic porous materials are used.
- adsorbents such as silica-lumina porous material “Kyoichi Ward” (manufactured by Kyowa Chemical Co., Ltd.) and diatomaceous earth.
- silica, alumina, zeolite and “kiyoward” are preferred from the viewpoint of catalytic activity, and silica gel and “kiyoward” are particularly preferred.
- the inorganic porous material is usually a granular material, and examples of the shape thereof include irregular particles, spherical particles, and pellets.
- spherical particles and pellets are preferred in terms of low pressure loss when reacted by the flow method described below.
- the particle diameter of the inorganic porous material is preferably:! To 8,000 zm, more preferably 10 to 6,000 111, and particularly preferably 40 to 500/1 111 as d50 (average particle diameter). When it is l x m or more, handling becomes easy, and 8,000 ⁇ or less is preferable in terms of catalytic activity.
- d50 can be measured by the particle size distribution measuring method defined in JIS Kl 150.
- the specific surface area of the inorganic porous material is, as a BET specific surface area, preferably 30 m 2 / g or more, still more preferably ⁇ is 50 ⁇ : 1, 500m 2 / g , particularly preferably ⁇ is 100 ⁇ 800m 2 / g It is. It is preferable that it is 30 milligrams or more because the catalyst activity is high and the side reaction is reduced.
- the BET specific surface area can be measured by a specific surface area measurement method defined in JIS K1150.
- the aspect ratio of the inorganic porous material is 1.0 to: 1.25 force S, more preferably 1.0 to: 1.
- the aspect ratio is the ratio of the longest diameter to the shortest diameter of the particle, and the closer to 1.0, the more spherical it is. If the aspect ratio is in the range of 1.0 to 1.25, it is preferable in terms of low pressure loss when the reaction is performed by the flow method described later.
- the aspect ratio can be measured by observing particles under a microscope, measuring the shortest diameter and the longest diameter, and averaging 100 particles.
- the inorganic porous material can be converted to a sulfonic acid precursor group-containing compound (s) (hereinafter simply referred to as (s)). And then converting the sulfonic acid precursor group to a sulfonic acid group.
- s sulfonic acid precursor group-containing compound
- (s) is a compound having in its molecule a group that reacts with a functional group on the surface of the inorganic porous material and a group that can be converted into a sulfonic acid group.
- the functional group on the surface of the inorganic porous material include a hydroxyl group, an amino group, and a carboxyl group. Preferred is a hydroxyl group from the viewpoint of easy modification of the surface of the inorganic porous material.
- examples of the group (s) that reacts with the functional group on the surface of the inorganic porous material include a trialkoxysilyl group, a glycidyl group, and a carboxyl group when the surface functional group is a hydroxyl group or an amino group.
- the functional group on the surface is a carboxyl group
- a trialkoxysilyl group, a glycidyl group, an amino group and the like can be mentioned.
- trialkoxysilyl groups and glycidyl groups are preferred from the viewpoint that reaction with functional groups on the surface is likely to proceed.
- Examples of the sulfonic acid precursor group that can be converted into the sulfonic acid group contained in (s) include a mercapto group (oxidized to convert to a sulfonic acid group) and a phenyl group (sulfonated to convert to a sulfophenyl group). Can be mentioned.
- (s) include mercapto group-containing silane coupling agents (such as mercaptopropyltrimethoxysilane and mercaptopropyltriethoxysilane), and phenyl group-containing silane coupling agents (phenyltrimethoxysilane, phenol). And phenyl group-containing glycidyl compounds (such as phenyl daricidyl ether and noel phenyl daricidyl ether). Of these, preferred are silane-powered silane coupling agents.
- the reaction between the silane coupling agent and the inorganic porous material can be performed under various reaction conditions.
- a silane coupling agent is charged at a ratio of 30 to 60% by weight based on the weight of the inorganic porous material, heated and stirred in the presence of a solvent, and trialkoxysilyl groups in the silane coupling agent and the inorganic porous material. It can be obtained by reacting functional groups (such as hydroxyl groups) on the surface and then purifying.
- an organic solvent toluene, xylene, ethyl acetate, methyl ethyl ketone, acetone, Z or a lower alcohol having 1 to 4 carbon atoms, etc.
- a mixed solvent with an organic solvent may be used.
- the proportion of water that is preferably used in a small amount is less than 3 times the mole of the silane coupling agent. The lower is particularly preferred.
- the amount of the solvent used is usually 80 to 300% based on the weight of the inorganic porous material (in the following,% represents% by weight unless otherwise specified), preferably 100 to 250%.
- the reaction temperature is usually from 60 to 150 ° C, and the reaction may be carried out while removing the alkoxy group-derived substance to be produced (for example, lower alcohols such as methanol and ethanol).
- the particulate matter is separated and collected by filtration or using a centrifuge, etc., and washed several times with the above organic solvent to remove unreacted substances (such as unreacted silane coupling agent). And vacuum drying (usually 100 to 120 ° C, 10 to 20 mmHg for 3 to 5 hours).
- the mercapto group-containing silane coupling agent is reacted, the mercapto group is converted to a sulfonic acid group by performing an oxidation reaction in the presence of a solvent.
- a solvent examples include various oxidizing agents such as nitric acid, hydrogen peroxide, hypochlorite, potassium permanganate, chromic acid or peroxide, and hydrogen peroxide is preferred.
- acetone, lower alcohol having 1 to 4 carbon atoms, acetonitrile, pyridine, chloroform, and / or dichloromethane are usually used.
- the reaction temperature is usually 0 to 100 ° C.
- the oxidation reaction with hydrogen peroxide can also be performed under the reaction conditions described in US Pat. No. 5,912,385.
- Various sulfonation methods can be applied to sulfonate the phenyl group after reacting the phenyl group-containing silane coupling agent.
- the sulfonating agent include a method using concentrated sulfuric acid, fuming sulfuric acid, sulfur trioxide, black mouth sulfuric acid, fluorosulfuric acid, amidosulfuric acid and the like.
- acetic acid, acetic anhydride, ethyl acetate, acetonitrile, dichloroethane and / or carbon tetrachloride can be used. Reaction temperature is usually 10
- a sulfonic acid group-supporting inorganic porous material ( ⁇ ) can be obtained by carrying out the same operations (separation / recovery, washing and drying) as the purification treatment after the reaction even in the case of deviation. Is obtained.
- [0047] is preferably 5 to 250 mg KOH / g, more preferably 10 to: 150 mg K 0 H / g Particularly preferably 15 to:! Having an acid value of OOmgKOHZg.
- the acid value is 5 mgK0HZg or more, the catalytic activity is improved, the esterification reaction proceeds with a small amount of catalyst, and when the acid value is 250 mgK0H / g or less, side reactions are likely to occur.
- the acid value of (a) can be measured by immersing (a) in ion-exchanged water, adding excess sodium hydroxide, stirring, and neutralizing titration with 0.1N hydrochloric acid aqueous solution.
- (iii) has substantially the same shape as that of the inorganic porous material before supporting the sulfonic acid group, and preferred ranges of d50, BET specific surface area and aspect ratio are also the same.
- ( ⁇ ) preferably has a d50 of:! To 8,000 ⁇ m, more preferably 10 to 6,000 ⁇ m, particularly preferably 40 to 500 / im. Handling lenght S is easier when it is 1 ⁇ m or more.
- the thickness is preferably 000 ⁇ m or less from the viewpoint of catalytic activity.
- ( ⁇ ) is preferably 30 m 2 / g or more, more preferably 50 ⁇ : 1, 500m 2 / g , is particularly preferred properly has a BET specific surface area of 100 ⁇ 800m 2 / g.
- the power of 30 m 2 / g or more is preferred in that the catalytic activity is increased and the side reaction is reduced.
- ( ⁇ ) is preferably from 1.0 to: 1.25, more preferably from 1.0 to: 1.18, particularly preferably 1.
- the equivalent ratio of ( ⁇ ) to ( ⁇ ) is usually 1: 3 to 3: 1, preferably Is 1: 2 to 2: 1, more preferably 1: 1.5 to 1.5: 1, and particularly preferably 1: 1.5 to 1.02.
- a polymerization inhibitor may be added for the purpose of preventing the polymerization of unsaturated groups.
- the polymerization inhibitors include phenolic polymerization inhibitors (nodoquinone, nodo, iduloquinone monomethyl ether, catechol, cresol, di-butylcresol, di-butylphenol, tri-1-butylphenol, etc. ), And amine polymerization inhibitors (phenothiazine, di Phenylamine, alkylated diphenylamine, etc.).
- a phenol polymerization inhibitor is preferable.
- the addition amount of the polymerization inhibitor is usually 0.001 to 2%, preferably 0.01 to 1%, more preferably 0.01 to 0.5% based on the total weight of (A) and (B). %, Particularly preferably 0.01 to 0.2%.
- the amount of (iii) used is usually 0.:! To 70%, preferably 1 to 60%, more preferably 2 to 50%, particularly preferably based on the total weight of (A) and (B). Is 3-40%.
- the amount of use of) is the specific force S of the equivalent amount of the sulfonic acid group in) to the equivalent of (A) used, preferably 0.005 to 0.3, more preferably 0.01 to This is the amount of added calories that is 0.2. If it is 0.005 or more, it is preferable from the viewpoint of reaction rate. If it is 0.3 or less, side reactions are suppressed, and it is preferable from the viewpoint.
- esterification reaction it can be carried out by either a batch method or a distribution method.
- the esterification reaction temperature is usually from 60 to 180 ° C, preferably from 80 to 160 ° C, and more preferably from 100 to 140 ° C. 60 ° C or higher is preferable from the viewpoint of reaction rate, and 180 ° C or lower is preferable from the viewpoint of suppressing side reactions.
- the reaction time is usually 10 minutes to 24 hours, preferably 30 minutes to 10 hours, particularly preferably:! To 5 hours.
- hydrocarbon solvents such as aromatic hydrocarbons such as toluene and xylene
- ketone solvents such as methyl ethyl ketone and methyl isobutyl ketone
- ether solvents such as tetrahydrofuran
- a method for removing water or lower alcohol produced a method of distilling under normal pressure or reduced pressure, a method of separating or centrifuging, a method of contacting with a dehydrating agent such as molecular sieves or magnesium sulfate, Membrane separation using a selective membrane such as a water separation membrane.
- a method of distilling off under normal pressure or reduced pressure is preferable.
- the esterification reaction is carried out by passing a mixture of (A) and (B) that has been temperature-controlled to a predetermined temperature through a column filled with (iii), a fixed bed, or a fluidized bed. Can be made.
- Unsaturated carboxylic acid ester can be obtained by distilling the reaction mixture after one pass. From the viewpoint that the reaction rate can be increased, in the presence of (a) (A) And (B) are preferably reacted (1), and (2) is a method of removing water or lower alcohol produced by the reaction of (A) and (B) from the reaction mixture.
- reaction rate can be further increased by repeating step (1) and step (2).
- the temperature of the mixture of (A) and (B) that is passed in step (1) is usually 60 to 180 ° C, preferably 80 to 160 ° C, more preferably 100 to 140 ° C. is there. 60 ° C or higher is preferable from the viewpoint of reaction rate, and 180 ° C or lower is preferable from the viewpoint of suppressing side reactions.
- the average liquid passing time per pass in the step (1) (average contact time between the catalyst and the reaction liquid) is usually from 0.:! To 60 minutes, preferably from 0.2 to: 10 minutes, more preferably from 0. 5-5 minutes.
- Methods for removing water or lower alcohol in step (2) include a method of distilling with a continuous evaporator, a method of distilling under normal pressure or reduced pressure using a reaction vessel equipped with a condenser, and water. Examples include a separation membrane, centrifugation, or a method of dehydrating with a dehydrating agent. Of these, a continuous evaporator, a reaction tank with a condenser, and a combination thereof are preferable from the viewpoint of production efficiency.
- step (1) and step (2) The number of repetitions of step (1) and step (2) is usually:! To 500 times, preferably 3 to 200 times, and more preferably 5 to 100 times.
- oxygen can be dissolved in the reaction solution for the purpose of inhibiting the polymerization of (B) and the product.
- the oxygen supply source include oxygen gas, air, and a mixture of air and nitrogen (hereinafter sometimes referred to as (mixture)).
- Oxygen can be dissolved by ventilating them in the reaction solution.
- air and air-fuel mixture particularly air-fuel mixture are preferable.
- the mixing volume ratio of air to nitrogen in the air-fuel mixture is usually 1: 9 to 9: 1, preferably 1: 9 to 5: 5, and particularly preferably 2: 8 to 4: 6.
- Increasing the ratio of air is preferable in that the effect of inhibiting polymerization is increased, and increasing the ratio of nitrogen is preferable in that coloring of the product is reduced.
- the air flow rate of the air or mixture is preferably 1 to 5,000 mL / min, more preferably 20 to 1: OOOmL / min, particularly preferably, per kg of the sum of (A) and (B). 30-500 mL / min.
- step (2) there is a force that includes a method of venting the process (1), the step (2) and the piping in the middle thereof. From the viewpoint of In step (2), it is preferable that air or air-fuel mixture is always ventilated.
- the purity of the unsaturated carboxylic acid ester obtained in the present invention is usually 95% or more, preferably 98% or more.
- Impurities include unreacted alcohol, elimination reaction products (such as olefin produced by elimination of water from one molecule of alcohol), and by-product ether compounds (generated by dehydration condensation from two molecules of alcohol).
- Ethers by-product addition products, addition products formed by adding alcohol to ⁇ -unsaturated groups) and sulfur atom-containing compounds (such as sulfur oxides eluted by decomposition of the catalyst).
- a polymerization inhibitor as an additive is included although it is not an impurity.
- the content of the unreacted alcohol is usually 5 mol% or less, preferably 2 mol% or less, based on the number of moles of / 3_unsaturated carboxylic acid ester.
- the contents of the by-product ether compound and the by-product addition product are each preferably 2 mol% or less (more preferably, based on the number of moles of 3,3-unsaturated carboxylic acid ester. 1. 5 mol 0/0 or less), and 1 mole 0/0 or less (more preferably 0.8 mol 0/0 or less).
- the sulfur atom-containing compound is usually 50 ppm or less, preferably 20 ppm (detection limit) as the sulfur atom content (hereinafter abbreviated as S content), based on the weight of the j3-unsaturated carboxylic acid ester. It is as follows.
- polymerization inhibitor examples include one or more polymerization inhibitors selected from the group consisting of the aforementioned phenol polymerization inhibitors and amine polymerization inhibitors.
- the content of the polymerization inhibitor is based on the weight of j3-unsaturated carboxylic acid ester.
- the contents of ⁇ , ⁇ unsaturated carboxylic acid ester, unreacted alcohol, elimination reaction product, by-product etherification product and by-product addition product were determined by measuring 1 -NMR of the product. It can be quantified by analysis.
- the S content can be determined using an inductively coupled high-frequency plasma emission analyzer (hereinafter abbreviated as ICP measuring device) “ICPS-8000” (manufactured by Shimadzu Corporation).
- the ⁇ 1, ⁇ unsaturated carboxylic acid ester of the present invention has high purity and has a polymerizable unsaturated group, and therefore can be suitably used as a raw material monomer for various polymers.
- Polymers obtained by using the ⁇ , unsaturated carboxylic acid ester of the present invention as one of monomers include various resins, resin modifiers, adhesive binders, paint vehicles, and lubricating oil viscosities. It can be used as an index improver, a pour point depressant for lubricants, or various additives.
- silica gel (“Kokogel C-1 100" manufactured by Wako Pure Chemical Industries, Ltd.), washed in advance with ion exchange water in a reaction vessel equipped with a stirrer, heating / cooling device, thermometer and reflux tube
- 400 parts of Tolene as a solvent and 10 parts of water were charged, and then the temperature was raised to 100 ° C .: 1 10 ° C.
- 100 parts of 3-mercaptopropyltrimethoxysilane The reaction was stirred for 8 hours under reflux. After that, another 15 parts of water was added and reacted for 8 hours.
- the solid content was filtered off from the reaction mixture, washed 3 times with 400 parts of Tonolene and 3 times with 400 parts of Isopropyl Alcohol, then dried under reduced pressure at 120 ° C for 5 hours, and the inorganic porous material supported by the silane coupling agent Obtained 190 parts of body.
- ( ⁇ 1) is a structure in which silica gel bears a sulfopropyl group, and its d50 is 230 xm, BET specific surface area is 222 m 2 / g, acid value is 37 mgKH / g, and aspect ratio is 1.89. there were.
- H2 is a structure in which silica gel bears a sulfophenyl group, and its d50 is 230 zm, the BET specific surface area is 215 m 2 / g, the acid value is 45 mgKH / g, and the aspect ratio is 1. 82.
- the catalyst (H-3) was prepared in the same manner as in Production Example 1 except that 200 parts of silica-alumina based porous material ("Kyoichi Ward 700SN”: manufactured by Kyowa Chemical Industry Co., Ltd.) was used as the catalyst support. I got a part.
- ( ⁇ 3) is a structure in which the silica-alumina porous material bears a sulfopropyl group.
- the d50 was 216 xm
- the BET specific surface area was 197 m 2 / g
- the acid value was 85 mgKH / g
- the aspect ratio was 1.12.
- catalyst (H-4) 140 parts of catalyst (H-4) was obtained in the same manner as in Production Example 1, except that 200 parts of alumina ("Activated Alumina 200" manufactured by Nacalai Testa Co., Ltd.) was used as the catalyst support.
- (A -4) has a structure in which the alumina has ⁇ sulfopropyl, the d50 is 68 xm, BET specific table area 231m 2 / g, an acid value of 52MgK_ ⁇ _H / g, the aspect ratio of 1. It was 14.
- the catalyst ( ⁇ -5) was prepared in the same manner as in Production Example 1 except that 200 parts of silica gel (CARiACT Q-6-containing particle size range 75-50 ⁇ m: manufactured by Fuji Silysia Chemical Ltd.) was used as the catalyst support. ) was obtained 140 parts.
- ( ⁇ -5) is a structure in which silica gel bears a sulfopropyl group. Its d50 is 220 xm, the BET specific surface area is 287 m 2 / g, the acid value is 43 mgK ⁇ H / g, and the aspect i is 1.02. Met.
- the catalyst ( ⁇ -6) was prepared in the same manner as in Production Example 1, except that 200 parts of silica gel (CARiACT Q-6-containing particle size range 45-75 ⁇ m: manufactured by Fuji Silysia Chemical Ltd.) was used as the catalyst support. 140 parts were obtained.
- ( ⁇ -6) is a structure in which silica gel bears a sulfopropyl group, and its d50 is 58 zm, the BET specific surface area is 320 m 2 / g, the acid value is 34 mgK0 HZg, and the aspect ratio is 1.02. there were.
- a reaction vessel equipped with a stirrer, heating / cooling device, thermometer, and water pipe is charged with 1,800 parts of lauryl alcohol and 1,100 parts of methacrylic acid (molar ratio 1: 1.3). 580 parts of 1) and 0.3 part of hydroquinone as a polymerization inhibitor were added.
- the reaction water was allowed to react for 2 hours at a reaction temperature of 115 to 125 ° C. while continuously removing the produced water from the system through a water pipe. Furthermore (this is 250 ⁇ 300mm: under vacuum of Hg, 13 temple reaction at 115 ⁇ 125 ° C, 10 ⁇ 20mmHg at 120 ⁇ 120 ° C, 120 ⁇ : excess methacrylic acid is distilled off at 130 ° C, then cooled.
- the unsaturated carboxylic acid ester (E-1) of the present invention 2,500 parts were obtained.
- (E-1) contained 99.8 mol% of the desired lauryl methacrylate and 0.2 mol% of the unreacted alcohol, and the elimination reaction product, by-product Both etherification products and by-product addition products were below the detection limit (0.1 mol% or less).
- Table 2 shows the results of product analysis.
- Reaction temperature 115 ⁇ After raising the temperature to 125 ° C, the reaction solution in the reaction tank is flowed to the fixed bed made of stainless steel packed with 1.8 kg of catalyst (H-5) with a diaphragm pump 1.1 L / The reaction liquid is continuously circulated in minutes, the discharge liquid is circulated to the original reaction tank, and the reaction liquid is dehydrated by distilling off the water generated at 115 to 125 ° C at normal pressure. While circulating, the reaction and dehydration steps were carried out continuously for 1 hour.
- the average residence time of the reaction solution per pass on the fixed bed was 2.5 minutes.
- the total number of circulation cycles for the total amount of the reaction solution in the esterification reaction was calculated to be about 18 times the flow velocity force in the fixed bed.
- Table 2 shows the results of product analysis.
- the total number of circulation cycles of the reaction solution at normal pressure was calculated to be about 50 times for the flow rate and average residence time force in the fixed bed.
- Table 2 shows the results of product analysis.
- Table 2 shows the results of product analysis.
- a ⁇ -unsaturated carboxylic acid ester ( ⁇ _2) of Comparative Example 2 was produced in the same manner as Comparative Example 1 except that acrylic acid was used in the amount shown in Table 1 as (B).
- Table 2 shows the results of product analysis.
- the ⁇ , ⁇ unsaturated carboxylic acid ester of the present invention has few by-products and high purity, and also has little catalyst residue.
- the present invention relates to a method for producing an ⁇ , ⁇ unsaturated carboxylic acid ester that does not generate a large amount of waste, a method for producing a high purity ⁇ , ⁇ unsaturated carboxylic acid ester with fewer by-products, and a catalyst. It is possible to provide a method for producing an ⁇ , ⁇ unsaturated carboxylic acid ester that is less corrosive to metals with less residue. In addition, the present invention can provide a highly pure ⁇ , ⁇ unsaturated carboxylic acid ester obtained by the above production method. Therefore, the present invention can be effectively applied to the production of ⁇ , ⁇ unsaturated carboxylic acid esters.
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| CN2005800290639A CN101010283B (zh) | 2004-08-30 | 2005-08-04 | α,β-不饱和羧酸酯的制造方法和α,β-不饱和羧酸酯 |
| US11/709,482 US7557241B2 (en) | 2004-08-30 | 2007-02-22 | Method for producing α,β-unsaturated carboxylic acid ester, α,β-unsaturated carboxylic acid ester, and lubricating oil additive |
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| JP2004-249407 | 2004-08-30 | ||
| JP2004249407 | 2004-08-30 |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US11/709,482 Continuation US7557241B2 (en) | 2004-08-30 | 2007-02-22 | Method for producing α,β-unsaturated carboxylic acid ester, α,β-unsaturated carboxylic acid ester, and lubricating oil additive |
| US11/709,482 Continuation-In-Part US7557241B2 (en) | 2004-08-30 | 2007-02-22 | Method for producing α,β-unsaturated carboxylic acid ester, α,β-unsaturated carboxylic acid ester, and lubricating oil additive |
Publications (1)
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| WO2006025182A1 true WO2006025182A1 (ja) | 2006-03-09 |
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| PCT/JP2005/014325 Ceased WO2006025182A1 (ja) | 2004-08-30 | 2005-08-04 | α,β-不飽和カルボン酸エステルの製造方法及びα,β-不飽和カルボン酸エステル |
Country Status (2)
| Country | Link |
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| CN (1) | CN101010283B (ja) |
| WO (1) | WO2006025182A1 (ja) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2280979B1 (en) * | 2008-05-28 | 2014-10-15 | Archer-Daniels-Midland Company | Production of 5-membered and 6-membered cyclic esters of polyols |
| DE102008054611A1 (de) * | 2008-12-15 | 2010-06-17 | Evonik Röhm Gmbh | Verfahren zur Herstellung von methacrylierten Benzophenonen |
| CN104610059A (zh) * | 2015-01-15 | 2015-05-13 | 吉林化工学院 | 一种酯交换-吸附脱甲醇合成(甲基)丙烯酸酯的方法 |
| CN113195451A (zh) * | 2018-12-20 | 2021-07-30 | 帝斯曼知识产权资产管理有限公司 | 特定α,β-不饱和羧酸酯的改进制备方法 |
| CN110845331A (zh) * | 2019-10-10 | 2020-02-28 | 天津利安隆新材料股份有限公司 | 一种苯甲酸高碳醇酯的制备方法 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05246947A (ja) * | 1991-12-13 | 1993-09-24 | Rohm & Haas Co | エステルの製造方法 |
| JPH06298702A (ja) * | 1992-10-22 | 1994-10-25 | Sumitomo Chem Co Ltd | メタクリル酸メチルの製造方法 |
| JPH1180082A (ja) * | 1997-09-10 | 1999-03-23 | Kao Corp | (メタ)アクリル酸高級アルキルエステルの製造法 |
| JPH11152248A (ja) * | 1997-11-19 | 1999-06-08 | Mitsubishi Chemical Corp | 不飽和カルボン酸エステルの製造方法 |
| JPH11319574A (ja) * | 1998-05-14 | 1999-11-24 | Asahi Chem Ind Co Ltd | エステル化用触媒 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0594008B1 (en) * | 1992-10-22 | 1997-08-13 | Sumitomo Chemical Company, Limited | Process for producing methyl methacrylate |
-
2005
- 2005-08-04 WO PCT/JP2005/014325 patent/WO2006025182A1/ja not_active Ceased
- 2005-08-04 CN CN2005800290639A patent/CN101010283B/zh not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05246947A (ja) * | 1991-12-13 | 1993-09-24 | Rohm & Haas Co | エステルの製造方法 |
| JPH06298702A (ja) * | 1992-10-22 | 1994-10-25 | Sumitomo Chem Co Ltd | メタクリル酸メチルの製造方法 |
| JPH1180082A (ja) * | 1997-09-10 | 1999-03-23 | Kao Corp | (メタ)アクリル酸高級アルキルエステルの製造法 |
| JPH11152248A (ja) * | 1997-11-19 | 1999-06-08 | Mitsubishi Chemical Corp | 不飽和カルボン酸エステルの製造方法 |
| JPH11319574A (ja) * | 1998-05-14 | 1999-11-24 | Asahi Chem Ind Co Ltd | エステル化用触媒 |
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| ALVARO M. ET AL: "Single-step preparation and catalytic activity of mesoporous MCM-41 and SBA-15 silicas functionalized with perfluoroalkylsulfonic acid groups analogous to Nafion", CHEMICAL COMMUNICATIONS, no. 8, 21 April 2004 (2004-04-21), pages 956 - 957, XP002996823 * |
| BOSSAERT W.D. ET AL: "Mesoporous Sulfonic Acids as Selective Heterogeneous Catalysits for the Synthesis of Monoglycerides", JOURNAL OF CATALYSIS, vol. 182, no. 1, 1999, pages 156 - 164, XP004443227 * |
| OKITA M. ET AL: "Silica Meso Takotaijo deno Kyosanten to sono Shokubai Sayo. (Preparation of strong acid-functionalized mesoporous silica and its catalysis)", THE CHEMICAL SOCIETY OF JAPAN DAI 84 KAI SHUNKI NENKAI, 11 March 2004 (2004-03-11), pages 453, 3 L1-50, XP002996824 * |
| XINGDONG Y. ET AL: "Preparation and Catalytic Activity of SBA-15 Mesoporous Silica Functionalized with Sulfonic Acid Groups", CUIHUA XUEBAO (CHINESE JOURNAL OF CATALYSIS), vol. 23, no. 5, September 2002 (2002-09-01), pages 435 - 438, XP002996825 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101010283A (zh) | 2007-08-01 |
| CN101010283B (zh) | 2012-03-07 |
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