Catalyst and process for preparing carboxylic acid esters
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United States of America Patent
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Nov 8, 2011
Grant Date -
Jun 24, 2010
app pub date -
Mar 3, 2010
filing date -
Jul 6, 2005
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Abstract
A catalyst and a process for preparing carboxylic acid esters from an aldehyde and an alcohol in the presence of molecular oxygen are disclosed. The catalyst comprises metals supported on a silica-containing support, wherein the metals consist essentially of palladium, lead, an alkali or alkaline earth metal, and at least one of niobium and zirconium. The process for preparing a carboxylic acid ester comprises reacting an aldehyde with an alcohol in the presence of molecular oxygen and the aforementioned catalyst.
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