Catalyst for the epoxidation of alkenes
AssigneeBASF SE
InventorsTobias Rosendahl, Torsten Mäurer, Dirk Hensel, Andreas Lehr
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Abstract
The present invention relates to a catalyst for preparing alkylene oxides, which is a supported silver catalyst having a novel promoter combination. The present invention further relates to a process for producing the catalyst and the use of the catalyst for the oxidation of alkylenes to alkylene oxides. In addition, the present invention relates to a process for preparing ethylene oxide from ethylene, which comprises the oxidation of ethylene in the presence of the stated catalyst.
Claims20
A tungsten-free catalyst for the epoxidation of alkenes, which comprises silver, and molybdenum, tin, and lithium as a promoters, all of which are applied to a support.
A process for producing tungsten-free catalysts for the epoxidation of alkenes, which comprises applying silver, and molybdenum, tin, and lithium, as a promoters, to a support.
A tungsten-free catalyst for converting ethylene to ethylene oxide, the catalyst comprising
- 10 to 25% by weight silver,
- 10 to 80 ppm molybdenum,
- 80 to 250 ppm tin, and
- 50 to 300 ppm lithium, each of which based on the total weight of the catalyst and calculated as element, and all of which are supported on an alumina support.
Dependencies are inferred from the claim text.