Process for preparing acetic acid, methyl acetate, acetic anhydr

Details Process for preparing acetic acid, methyl acetate, acetic anhydr Process for preparing acetic acid, methyl acetate, acetic anhydr

1992-09-04

1994-02-15

Killos, Paul J.

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

Organic compounds

Carboxylic acid esters

C07C 6736

Patent

active

052869008

ABSTRACT:
From a synthesis gas mainly consisting of hydrogen and carbon oxides an acetic acid product consisting of acetic acid, acetic anhydride and/or methyl acetate is prepared by reactions known per se in a technically simple reaction sequence and a high conversion degree when the reactions are combined such that in a first step at a pressure of 5-200 bar and a temperature of 150.degree.-400.degree. C. the synthesis gas is converted in the gas phase in a first reactor to methanol, of which at least a substantial proportion is converted to dimethyl ether in the same reactor in the presence of one or more catalysts which together catalyze the reactions

REFERENCES:
patent: 4102920 (1978-07-01), Bartish
patent: 4374070 (1983-02-01), Larkins et al.
patent: 4520216 (1985-05-01), Skov et al.
patent: 5189203 (1993-02-01), Hansen et al.

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