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US 5,703,001 AGranted
Promoted silver catalyst
AssigneeScientific Design Company, Inc.
InventorNabil Rizkalla
Life of this patent
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Abstract
A rhenium free supported silver catalyst for ethylene oxidation to ethylene oxide is provided containing an alkali metal promoter component and a Group 4b component in which the Group 4b component is added as a compound where the Group 4b compound is the cation.
Claims7
A rhenium-free catalyst for the oxidation of ethylene to ethylene oxide comprised by weight of 5-30% silver on a solid alumina support having a surface area of 0.2-2.0 m.sup.2 /g and containing a promoting amount of (1) an alkali metal component and (2) a Group 4b component wherein the Group 4b component is added as a compound having a Group 4b cation.
Dependencies are inferred from the claim text.