Use of pentavalent group VA oxides in acetic acid processing

Details Use of pentavalent group VA oxides in acetic acid processing Use of pentavalent group VA oxides in acetic acid processing

1995-10-03

2000-02-29

Killos, Paul J.

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

Organic compounds

Carboxylic acids and salts thereof

C07C 5112

Patent

active

060311290

ABSTRACT:
Methanol is converted to acetic acid by reaction with carbon monoxide in the presence of an improved carbonylation system which comprises a rhodium catalyst component and a liquid reaction medium containing water in low levels, acetic acid, methyl iodide, methyl acetate, and at least one pentavalent Group VA oxide wherein the concentration of pentavalent Group VA oxide to rhodium is greater than about 60:1. The present carbonylation system not only increases the yields and reaction rates but also serves to stabilize the rhodium catalyst component in an active form.

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