Preparation of carboxylic acid anhydrides
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United States of America Patent
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Dec 17, 1985
Issued Date -
N/A
app pub date -
Aug 27, 1984
filing date -
Sep 4, 1973
priority date (Note) -
Expired
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Abstract
A carboxylic acid anhydride such as acetic anhydride, is prepared from a carboxylate ester or a hydrocarbyl ether in processes comprising the use of a halide, carbon monoxide and a Group VIII noble metal.
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