Catalyst composition for oxidation of ethylene to ethylene oxide
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United States of America Patent
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Apr 7, 1992
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N/A
app pub date -
Sep 28, 1990
filing date -
Sep 28, 1990
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Expired
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Abstract
Catalysts for the epoxidation of ethylene in the vapor phase comprise silver impregnated support having thereon at least one cation promoter and oxyanion promoter comprising (i) sulfate anion, (ii) fluoride anion and (iii) oxyanion of an element of Group 3b to 6b, inclusive, of the Periodic Table, wherein the amount of fluoride anion is sufficient to reduce ethylene oxide burning.
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