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

1996-10-03

1998-10-06

Killos, Paul J.

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

Organic compounds

Carboxylic acids and salts thereof

562517, C07C 5112, C07C 5110

Patent

active

058178694

ABSTRACT:
Methanol is converted to acetic acid by reaction with carbon monoxide in the presence of an carbonylation system which comprises a rhodium catalyst component and a liquid reaction medium containing acetic acid, methyl iodide, methyl acetate, and at least one pentavalent Group VA oxide and water in specific concentrations. 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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