METHOD FOR MAKING A HIGHLY SELECTIVE ETHYLENE OXIDE CATALYST
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United States of America Patent
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Issued Date -
Feb 26, 2015
app pub date -
Nov 10, 2014
filing date -
May 17, 2010
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Abandoned
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Abstract
A process for the preparation of a catalyst useful for the vapor phase production of ethylene oxide from ethylene and oxygen comprising providing a catalyst precursor comprising an inert support having a catalytically effective amount of a silver containing compound, a promoting amount of an alkali metal containing compound, and a promoting amount of a transition metal containing compound disposed thereon; calcining the catalyst precursor to convert the silver in the silver containing compound to metallic silver by heating the catalyst precursor to form a catalyst; and curing the catalyst in an inert gas atmosphere at temperatures of about 250° C. to about 600° C. for a period of about 1 hour to 200 hours.
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