Title:
【発明の名称】カルボン酸の異性化方法
Document Type and Number:
Japanese Patent JP3091493
Kind Code:
B2
Abstract:
A method for isomerising carboxylic acids and particularly branched acids into the corresponding straight acids. In particular, the method is for isomerising at least one branched saturated carboxylic acid by heating it in the presence of an effective amount of an iridium catalyst and an iodinated or brominated promoter, the promoter:Ir molar ratio being from 0.1:1 to 20:1. The method is particularly suitable for upgrading methyl-glutaric and ethyl-succinic acids into adipic acid.
Inventors:
Doni, Philip
Karl, Patwais
Robert, Peron
Karl, Patwais
Robert, Peron
Application Number:
JP52070294A
Publication Date:
September 25, 2000
Filing Date:
March 07, 1994
Export Citation:
Assignee:
Rhone-Poulin stain
International Classes:
B01J23/46; B01J27/08; B01J31/16; C07C51/353; C07C55/02; C07C55/14; (IPC1-7): C07C55/14; B01J23/46; B01J27/08; B01J31/16; C07B61/00; C07C51/353; C07C55/02
Domestic Patent References:
| JP2212453A | ||||
| JP6245854B2 |
Other References:
【文献】米国特許3578688(US,A)
【文献】米国特許3090807(US,A)
【文献】欧州公開612711(EP,A1)
【文献】米国特許3090807(US,A)
【文献】欧州公開612711(EP,A1)
Attorney, Agent or Firm:
Motohiro Kurauchi (1 outside)