Catalysts Having Enhanced Stability, Efficiency and/or Activity For Alkylene Oxide Production
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United States of America Patent
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app pub date -
Jul 31, 2009
filing date -
Oct 16, 2003
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Abstract
A catalyst for the manufacture of alkylene oxide, for example ethylene oxide, by the vapor-phase epoxidation of alkene containing impregnated silver and at least one efficiency-enhancing promoter on an inert, refractory solid support, said support incorporating a sufficient amount of zirconium component (present and remaining substantially as zirconium silicate) as to enhance at least one of catalyst activity, efficiency and stability as compared to a similar catalyst which does not contain the zirconium component.
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