Modified alumina carriers and silver-based catalysts for the production of alkylene oxides
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United States of America Patent
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Issued Date -
Dec 28, 2006
app pub date -
Jun 2, 2004
filing date -
Aug 22, 2003
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Abandoned
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Abstract
An improved alpha-alumina carrier useful for preparing a catalyst having excellent catalytic performance when used in the production of alkylene oxide, such as ethylene oxide. The carrier is obtained by impregnating a preformed alpha-alumina carrier with at least one alkali metal hydroxide modifier, drying said impregnated carrier, calcining, said dried carrier, and washing said calcined carrier. A particularly useful alkali metal hydroxide is sodium hydroxide.
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