Title:
【発明の名称】カルボン酸類の製造方法
Document Type and Number:
Japanese Patent JP3110029
Kind Code:
B2
Abstract:
An improved liquid-phase process for preparing carboxylic acids having (n + 1) carbon atoms by rhodium catalysed carbonylation of an alcohol having n carbon atoms is provided. The process is particularily suitable for preparing acetic acid from methanol in commercial carbonylation reactors operating at steady-state with a low standing quantity of water (eg 0.5 to 5% by weight). The improvement lies in carrying out the carbonylation in the presence of an iodide stabiliser (eg lithium iodide) and a Group VI B metal costabiliser. The process can optionally be carried out in the presence of hydrogen.
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Inventors:
Michael david jones
Application Number:
JP3990590A
Publication Date:
November 20, 2000
Filing Date:
February 22, 1990
Export Citation:
Assignee:
The British Pitlorium Company P.L.C
International Classes:
B01J27/12; C07C51/12; C07C53/00; C07C53/08; C07B61/00; (IPC1-7): C07C51/12; B01J27/12; C07C53/08
Domestic Patent References:
| JP58164539A | ||||
| JP6147428A | ||||
| JP6147441A | ||||
| JP4731283B1 |
Attorney, Agent or Firm:
Haruo Hamada