Process for preparing carboxylic acid anhydrides

Details Process for preparing carboxylic acid anhydrides Process for preparing carboxylic acid anhydrides

1975-12-22

1977-01-11

Morgenstern, Norman

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260546, C07C 5154, C07C 5156

Patent

active

040026779

ABSTRACT:
A carboxylic acid anhydride such as acetic anhydride, is prepared from a carboxylate ester or a hydrocarbyl ether in carbonylation processes comprising the use of an iodide, carbon monoxide and a nickel-chromium catalyst in the presence of a tin promoter.

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patent: 3641074 (1972-02-01), Fenton
patent: 3852346 (1974-12-01), Forster et al.
patent: 3887595 (1975-06-01), Noyaki
patent: 3927078 (1975-12-01), Lapporte et al.

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