METHOD FOR PRODUCING MONOCARBOXYLIC ACID ANHYDRIDE AND SUPPORTED CATALYST

Title:

METHOD FOR PRODUCING MONOCARBOXYLIC ACID ANHYDRIDE AND SUPPORTED CATALYST

Document Type and Number:

Japanese Patent JPS61220740

Kind Code:

A

Abstract:

Monocarboxylic anhydrides of the general formula (RCO)2O are made by reacting a carboxylic acid ester or dialkylether of the general formulae RCOOR and ROR, respectively, in which R stands for one and the same alkyl radical having from 1-4 carbon atoms, with carbon monoxide in gas phase, in the presence of iodine or bromine or their compounds as a reaction promoter and also in the presence of a carrier-supported catalyst containing noble metal compounds of group VIII of the Periodic System, at temperatures of 130 DEG -400 DEG C. and under pressures of 1-150 bars. To this end, a novel carrier-supported catalyst is used in which the carrier material has a noble metal/chelate-compound formed of the noble metal compound and a chelator containing organonitrogen, organophosphorus, organoarsenic or organosulfur groups applied to it.

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Inventors:

GERUHARUTO RUFUTO
GEEPUHARUTO RITAA

Application Number:

JP6741686A

Publication Date:

October 01, 1986

Filing Date:

March 27, 1986

Export Citation:

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Assignee:

HOECHST AG

International Classes:

B01J31/16; B01J31/18; B01J31/22; B01J31/24; B01J31/26; C07B61/00; C07C51/54; C07C51/56; C07C53/12; C07C53/122; C07C53/124; (IPC1-7): B01J31/18; B01J31/22; C07C51/54; C07C53/12; C07C53/122; C07C53/124

Attorney, Agent or Firm:

Toshio Yano

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