Improved 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 -
Nov 16, 2006
app pub date -
Jun 2, 2004
filing date -
Aug 22, 2003
priority date (Note) -
Abandoned
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Abstract
An improved 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 a) impregnating a preformed alpha-alumina carrier with at least one modifier selected from among alkali metal silicates and alkaline earth metal silicates, b) drying said impregnated carrier; and c) calcining said dried carrier. The carrier may optionally be washed, prior to being impregnated by conventional catalytic material and/or promoter material.
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