Ethylene oxide catalyst
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United States of America Patent
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Jul 13, 2004
Grant Date -
Aug 8, 2002
app pub date -
Nov 13, 2001
filing date -
May 1, 2000
priority date (Note) -
Expired
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Abstract
A silver catalyst for ethylene oxidation to ethylene oxide is provided containing a promoter combination consisting of critical amounts of an alkali metal component and a sulfur component, the catalyst being essentially free of rhenium and transition metal components; optionally the catalyst contains a fluorine component.
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