Process for preparing carboxylic acid
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United States of America Patent
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Mar 2, 2010
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app pub date -
Sep 20, 2007
filing date -
Sep 20, 2006
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Abstract
A process for preparing a carboxylic acid by the carbonylation of an alcohol in a reaction medium is provided. The reaction medium includes a catalyst promoter having a metal species selected form the group consisting of group IIIA-IVA metals, group IB-VIIIB metals and lanthanides, together with a hydrohalic acid to prevent catalyst precipitation and to maintain high reaction rates in case of low water content.
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