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1. 发明专利

DE69017346D1 未知
公开(公告)号：DE69017346D1
公开(公告)日：1995-04-06
申请号：DE69017346
申请日：1990-10-17
申请人： MITSUBISHI CHEM IND
发明人： MIYAZAWA CHIHIRO , MIKAMI HIROSHI
IPC分类号： B01J31/24 , C07B61/00 , B01J31/22 , C07C45/50 , C07C47/02
摘要： A process for hydroformylation of an olefin, which comprises reacting an olefin with carbon monoxide and hydrogen in the presence of a rhodium catalyst having a trivalent organic phosphorus compound as a ligand, wherein the hydroformylation reaction is conducted by two stage reactor systems i.e. a first stage reactor system comprising a reactor or reactors having a mixing characteristic of the liquid phase being substantially of complete mixing type, and a second stage reactor system being a reaction system of a catalyst solution circulating type and comprising a reactor or reactors having a mixing characteristic of piston flow type wherein when the mixing characteristic of the liquid phase is represented by a diffusion model, a non-dimensional number U (hereinafter referred to as a "flow mixing parameter") defined by the formula (I): U IDENTICAL uL/2E (I) wherein u is an average flow velocity (cm/sec), L is the length (cm) of the reaction layer, and E is an average diffusion coefficient (cm /sec), is at least 0.4, a gaseous product or gas-liquid mixture discharged from the first stage reactor system, is separated into a stream containing the unreacted olefin and other stream, and a part or whole of the stream containing the unreacted olefin is supplied to the second stage reactor system.

2. 发明专利

DE3889936D1 未知
公开(公告)号：DE3889936D1
公开(公告)日：1994-07-14
申请号：DE3889936
申请日：1988-02-04
申请人： MITSUBISHI CHEM IND
发明人： MIYAZAWA CHIHIRO , ORITA SOUICHI , TSUBOI AKIO
IPC分类号： C07C29/16 , C07C31/125
摘要： A C9 alcohol mixture for plasticizer obtained by the hydroformylation and hydrogenation of a C8 olefin mixture as the starting material obtained by the dimerization of a butene fraction, said alcohol mixture comprising from 8 to 50% by weight of a first group component having a retention time not longer than the retention time of isobutyl n-caprylate, from 8 to 40% by weight of a second group component having a retention time longer than that of isobutyl n-caprylate and not longer than that of methyl n-caprate and from 20 to 80% by weight of a third group component having a retention time longer than that of methyl n-caprate, as divided into such three components by gas chromatography using a capillary column packed with a polyethylene glycol having a number average molecular weight of 15,000 to 20,000 as an isomer separating agent.

3. 发明专利

BR8200197A 未知
公开(公告)号：BR8200197A
公开(公告)日：1982-11-09
申请号：BR8200197
申请日：1982-01-15
申请人： MITSUBISHI CHEM IND
发明人： TSUNODA YOSHITOSHI , TANIMURA TAISEL , MIYAZAWA CHIHIRO
IPC分类号： B01J31/40 , B01J38/00 , C07C45/00 , C07C45/50 , C07C47/02 , C07C67/00 , C07F15/00
摘要： A method for the recovery of rhodium-triarylphosphine complexes used in the hydroformylation of olefins is described, which comprises contacting an extracted catalyst liquid containing therein a rhodium-triarylphosphine complex with hydrogen in the presence of an alcohol containing 1 to 8 carbon atoms and water to precipitate a hydrogen-coordinated rhodium-triarylphosphine complex, and recovering the precipitated hydrogen atom-coordinated rhodium-triarylphosphine complex from the liquid.

4. 发明专利

DE3017651A1 未知
公开(公告)号：DE3017651A1
公开(公告)日：1980-11-27
申请号：DE3017651
申请日：1980-05-08
申请人： MITSUBISHI CHEM IND
发明人： TSUNODA YOSHITOSHI , TOMITA SHIMPEI , MIYAZAWA CHIHIRO
IPC分类号： B01J31/40 , C07C45/50 , C07F9/02 , C07F9/50 , C07C47/02
摘要： A process for the hydroformylation of an olefin, comprising reacting the olefin with carbon monoxide and hydrogen in a catalyst liquid containing a Group VIII noble metal-triarylphosphine complex catalyst, excess triarylphosphine and a reaction solvent to form an aldehyde, characterized by withdrawing a part of the catalyst liquid as a spent catalyst liquid, subjecting the spent catalyst liquid to crystallization, recovering crystallized triarylphosphine from the spent catalyst liquid, and recirculating the recovered triarylphosphine into the reaction zone.

5. 发明专利

DE68914390D1 未知
公开(公告)号：DE68914390D1
公开(公告)日：1994-05-11
申请号：DE68914390
申请日：1989-10-24
申请人： MITSUBISHI CHEM IND
发明人： MIYAZAWA CHIHIRO , TSUBOI AKIO
IPC分类号： C07C29/38 , C08K5/05 , C07C31/125 , C08K5/12
摘要： A C10 alcohol mixture for plasticizer, which comprises 2-propylheptanol (hereinafter referred to as "PRH"), an alcohol having a structure of condensation product of n-valeraldehyde and 2-methylbutyraldehyde (hereinafter referred to as "Component A"), an alcohol having a structure of condensation product of n-valeraldehyde and 3-methylbutyraldehyde (hereinafter referred to as "Component B"), an alcohol having a structure of condensation product of n-valeraldehyde and pivalaldehyde (hereinafter referred to as "Component C"), and other C10 alcohols (hereinafter referred to as "Component D"), characterized in that the respective components are present in the following molar ratios: Component A/PRH = 0.04-1 Component B/PRH = 0.002-0.3 Component C/PRH = 0.001-0.3 Component D/PRH

6. 发明专利

BR8707021A 未知
公开(公告)号：BR8707021A
公开(公告)日：1988-08-09
申请号：BR8707021
申请日：1987-12-23
申请人： MITSUBISHI CHEM IND
发明人： MIYAZAWA CHIHIRO , MIKAMI HIROSHI , TSUBOI AKIO , HAMANO KATSUHIDE
IPC分类号： C07C45/50 , C07C45/49
摘要： A process for the hydroformylation of an olefin, which comprises hydroformylating an olefinic compound by reacting it with carbon monoxide and hydrogen in a hydroformylation reaction zone in the presence of a catalyst solution containing rhodium and an oxide of an organic trivalent phosphorus compound to form an aldehyde having a carbon number larger by one than that of the olefinic compound; adding an organic trivalent phosphorus compound to the reaction mixture, followed by distillation to separate a distillate containing the aldehyde from a high-boiling residue containing rhodium; oxidizing the high-boiling residue at the same time as or subsequent to the distillation to convert the organic trivalent phosphorus compound to its oxide; and recycling the oxidized residue to the hydroformylation reaction zone as a recycling catalyst solution, wherein the hydroformylation reaction is conducted under a condition such that the proportion of an alcohol content supplied as contained in the recycling catalyst solution is maintained at a level of not higher than 14% by weight based on the total amount of the olefinic compound and the catalyst solution supplied to the hydroformylation reaction zone.

7. 发明专利

DE3201723A1 未知
公开(公告)号：DE3201723A1
公开(公告)日：1982-08-26
申请号：DE3201723
申请日：1982-01-21
申请人： MITSUBISHI CHEM IND
发明人： TSUNODA YOSHITOSHI , TANIMURA TAISEI , MIYAZAWA CHIHIRO
IPC分类号： B01J31/40 , B01J38/00 , C07C45/00 , C07C45/50 , C07C47/02 , C07C67/00 , C07F15/00 , C07F9/50 , C07C45/49
摘要： A method for the recovery of rhodium-triarylphosphine complexes used in the hydroformylation of olefins is described, which comprises contacting an extracted catalyst liquid containing therein a rhodium-triarylphosphine complex with hydrogen in the presence of an alcohol containing 1 to 8 carbon atoms and water to precipitate a hydrogen-coordinated rhodium-triarylphosphine complex, and recovering the precipitated hydrogen atom-coordinated rhodium-triarylphosphine complex from the liquid.

8. 发明专利

DE69017570D1 未知
公开(公告)号：DE69017570D1
公开(公告)日：1995-04-13
申请号：DE69017570
申请日：1990-09-21
申请人： MITSUBISHI CHEM IND
发明人： MIYAZAWA CHIHIRO , TAKAHASHI KAZUNARI , KAMEO HIROSHI , ISOGAI SHINJI , OTAKE MASAYUKI
IPC分类号： C07D315/00 , C07D307/33
摘要： A process for producing a lactone by reacting in a hydrogenation reaction zone a dicarboxylic acid, a dicarboxylic acid anhydride and/or a dicarboxylic acid ester with hydrogen in a liquid phase using a solvent in the presence of a catalyst comprising ruthenium and an organic phosphine, which process comprises the following steps (1) to (6): (1) a first step of recovering the liquid phase from the hydrogenation reaction zone, (2) a second step of distilling the liquid phase in a first distillation column to obtain a first distillate and a first residue, (3) a third step of recycling the first residue to the hydrogenation reaction zone, (4) a fourth step of distilling a part of the first residue in a second distillation column to obtain a second distillate and a second residue, (5) a fifth step of recycling the second distillate to the hydrogenation reaction zone or the first distillation column, and (6) a sixth step of recovering a lactone from the first distillate.

9. 发明专利

DE68914390T2 未知
公开(公告)号：DE68914390T2
公开(公告)日：1994-11-17
申请号：DE68914390
申请日：1989-10-24
申请人： MITSUBISHI CHEM IND
发明人： MIYAZAWA CHIHIRO , TSUBOI AKIO
IPC分类号： C07C29/38 , C08K5/05 , C07C31/125 , C08K5/12
摘要： A C10 alcohol mixture for plasticizer, which comprises 2-propylheptanol (hereinafter referred to as "PRH"), an alcohol having a structure of condensation product of n-valeraldehyde and 2-methylbutyraldehyde (hereinafter referred to as "Component A"), an alcohol having a structure of condensation product of n-valeraldehyde and 3-methylbutyraldehyde (hereinafter referred to as "Component B"), an alcohol having a structure of condensation product of n-valeraldehyde and pivalaldehyde (hereinafter referred to as "Component C"), and other C10 alcohols (hereinafter referred to as "Component D"), characterized in that the respective components are present in the following molar ratios: Component A/PRH = 0.04-1 Component B/PRH = 0.002-0.3 Component C/PRH = 0.001-0.3 Component D/PRH

10. 发明专利

CA2027991A1 PROCESS FOR HYDROFORMYLATION OF AN OLEFIN 未知
公开(公告)号：CA2027991A1
公开(公告)日：1991-04-20
申请号：CA2027991
申请日：1990-10-18
申请人： MITSUBISHI CHEM IND , MITSUBISHI CHEM CORP
发明人： MIYAZAWA CHIHIRO , MIKAMI HIROSHI
IPC分类号： B01J31/22 , B01J31/24 , C07B61/00 , C07C45/50 , C07C47/02
摘要： A process for hydroformylation of an olefin, which comprises reacting an olefin with carbon monoxide and hydrogen in the presence of a rhodium catalyst having a trivalent organic phosphorus compound as a ligand, wherein the hydroformylation reaction is conducted by two stage reactor systems i.e. a first stage reactor system comprising a reactor or reactors having a mixing characteristic of the liquid phase being substantially of complete mixing type, and a second stage reactor system being a reaction system of a catalyst solution circulating type and comprising a reactor or reactors having a mixing characteristic of piston flow type wherein when the mixing characteristic of the liquid phase is represented by a diffusion model, a non-dimensional number U (hereinafter referred to as a "flow mixing parameter") defined by the formula (I): U = ~L/2~ (I) wherein ~ is an average flow velocity (cm/sec), L is the length (cm) of the reaction layer, and ~ is an average diffusion coefficient (cm2/sec), is at least 0.4, a gaseous product or gas-liquid mixture discharged from the first stage reactor system, is separated into a stream containing the unreacted olefin and other stream, and a part or whole of the stream containing the unreacted olefin is supplied to the second stage reactor system.

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