Title:
MANUFACTURE OF CARBOXYLIC ACID, CARBOXYLIC ANHYDRIDE AND OPTIONALLY CARBOXYLIC ACID ESTER SIMULTANEOUSLY
Document Type and Number:
Japanese Patent JPS6147428
Kind Code:
A
Abstract:
1. A process for the common preparation of carboxylic acids and carboxylic anhydrides and, if appropriate, carboxylic acid esters of the general formulae RCOOH, RCOOCOR and RCOOR respectively, by reacting a dialkyl ether of the general formula ROR and an alcohol of the general formula ROH with carbon monoxide, optionally containing up to 10% by volume of hydrogen, in the presence of a catalyst system comprising carbonyl complexes of noble metals of group VIII of the Periodic Table ; an alkali metal iodide, organophosphonium iodide or organoammonium iodide ; an alkyl iodide of the general formula RI and, if appropriate, compounds of carbonyl forming non-noble metals of groups IV, V, VI, VII or VIII of the Periodic Table, where R in each case denotes the same alkyl radical having 1 to 4 carbon atoms, which comprises employing the dialkyl ether and the alcohol in the molar ratio 9 : 1 to 1 : 9 and carrying out the reaction under anhydrous conditions at temperatures of from 50 to 250 degrees C and pressures of from 0.1 to 120 bar.
Inventors:
HAINTSU ERUPENBATSUHA
KURAUSU GEERUMAN
PEETAA HERUSUTAAMAN
KURAUSU GEERUMAN
PEETAA HERUSUTAAMAN
Application Number:
JP17255385A
Publication Date:
March 07, 1986
Filing Date:
August 07, 1985
Export Citation:
Assignee:
HOECHST AG
International Classes:
B01J31/00; B01J31/20; C07B61/00; C07C27/00; C07C51/00; C07C51/12; C07C51/54; C07C51/56; C07C53/08; C07C53/12; C07C53/122; C07C67/00; C07C67/37; C07C69/14; C07C69/24; (IPC1-7): B01J31/20; C07C27/00; C07C51/12; C07C51/54; C07C53/08; C07C53/12; C07C53/122; C07C67/36; C07C69/14; C07C69/24
Domestic Patent References:
| JPS56150031A | 1981-11-20 |
Attorney, Agent or Firm:
Toshio Yano
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