05001259 is referenced by 216 patents and cites 4 patents.

An alcohol such as methanol is reacted with carbon monoxide in a liquid reaction medium containing a rhodium catalyst stabilized with an iodide salt, especially lithium iodide, along with alkyl iodide such as methyl iodide and alkyl acetate such as methyl acetate in specified proportions. With a finite concentration of water in the reaction medium the product is the carboxylic acid instead of, for example, the anhydride. The present reaction system not only provides an acid product of unusually low water content at unexpectedly favorable reaction rates but also, whether the water content is low or, as in the case of prior-art acetic acid technology, relatively high, is characterized by unexpectedly high catalyst stability; i.e., it is resistant to catalyst precipitation out of the reaction medium.

Title
Methanol carbonylation process
Application Number
606730
Publication Number
5001259
Application Date
June 3, 1986
Publication Date
March 19, 1991
Inventor
James S Alder
Corpus Christi
TX, US
Adolfo Aguilo
G Paull Torrence
Brad L Smith
Agent
Donald R Cassady
Ralph M Pritchett
Assignee
Hoechst Celanese Corporation
NJ, US
IPC
C07C 53/08
C07C 51/12
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