Catalysts utilizing carbon dioxide for the epoxidation of olefins
AssigneeResearch Triangle Institute
InventorsMarty Lail, Paul Mobley, Jonathan Peters, Sree Nandita Akunuri, Joshua J. Hlebak
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Abstract
The present disclosure provides mixed molybdenum oxide catalysts, methods for preparing epoxides from olefins and CO2 using them, and methods of making the mixed molybdenum oxide catalysts by impregnation or co-precipitation. In a preferred embodiment, the mixed molybdenum oxide catalysts are silver/molybdenum oxide catalysts, ruthenium/molybdenum oxide catalysts, or a combination thereof.
Claims31
A method of catalyzing the abstraction of oxygen from carbon dioxide (CO2) to form carbon monoxide (CO) comprising contacting a mixed molybdenum oxide catalyst, which comprises a silver oxide, a ruthenium oxide, or a mixture thereof, with an appropriate CO2 feed stream under suitable temperature and pressure conditions so as to abstract oxygen from the CO2 to form CO.
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A method for preparing a mixed molybdenum oxide catalyst which comprises:
- (a) contacting a support material with a mixed metal molybdenum salt solution;
- (b) drying the support material and the molybdenum salt solution;
- and
- (c) calcining the dried support material and the molybdenum salt so as to prepare the mixed molybdenum oxide catalyst.
A method for preparing a mixed molybdenum oxide catalyst which comprises:
- (a) contacting a solution containing mixed metal molybdenum salts and an aluminum salt with an aqueous base solution so as to form a co-precipitate;
- (b) drying the co-precipitate;
- and
- (c) calcining the dried co-precipitate so as to prepare the mixed molybdenum oxide catalyst.
Dependencies are inferred from the claim text.