Process for preparing organic carboxylic acid

Details Process for preparing organic carboxylic acid Process for preparing organic carboxylic acid

1995-03-21

1996-11-19

Killos, Paul J.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acids and salts thereof

562522, 562607, C07C 4550

Patent

active

055764584

ABSTRACT:
In the production step, alcohol is reacted with carbon monoxide in a reaction solvent in the presence of a rhodium-containing solid catalyst obtained by immobilizing rhodium in an insoluble carrier (I) containing a pyridine ring in its resin structure and an alkyl iodide containing an alkyl group of 1 to 5 carbon atoms, to produce a reaction product having a water content of 0.5 to 10% by weight; and in the subsequent removing step, an organic carboxylic acid is separated and recovered from the reaction product, and the recovered organic carboxylic acid is contacted with an insoluble carrier (II) containing a pyridine ring in its resin structure, to remove an iodide contained in the organic carboxylic acid.

REFERENCES:
patent: 4328125 (1982-05-01), Drago et al.
patent: 5227520 (1993-07-01), Cooper et al.
patent: 5364963 (1994-11-01), Minami et al.
patent: 5442107 (1995-08-01), Beevor et al.
Abstract of Japanese Patent Laid-Open Publication No. 10680/1978.

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