Ethylene oxide catalyst
AssigneeScientific Design Company, Inc.
InventorsNabil Rizkalla, Rita Klein, Stephen Bruce Milne
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Abstract
A silver catalyst for ethylene oxidation to ethylene oxide is provided containing a promoter combination consisting of an alkali metal component, a sulfur component, a germanium or tin component, and a fluorine component the catalyst being essentially free of rhenium and transition metal compounds.
Claims5
A rhenium and transition metal free catalyst for the oxidation of ethylene to ethylene oxide comprised of silver on a solid support and containing a promoter combination consisting essentially of (1) an alkali metal component in amount not greater than 3000 ppm based on the weight of the catalyst, (2) a sulfur component in amount of 5-300 ppm based on the weight of the catalyst, (3) a germanium or tin component in amount of 10-1000 ppm based on the weight of the catalyst, and (4) a fluorine ;
- component in amount of 10-1000 ppm based on the weight of the catalyst.
Dependencies are inferred from the claim text.