High temperature-stable catalyst composition

Details High temperature-stable catalyst composition High temperature-stable catalyst composition

B - Operations, Transporting

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252/51.F

B01J 23/00 (2006.01) B01J 23/58 (2006.01) B01J 23/62 (2006.01) B01J 23/652 (2006.01)

Patent

CA 1120909

HIGH TEMPERATURE-STABLE CATALYST COMPOSITION Abstract of the Disclosure Catalysts having good high temperature stability which are particularly useful for carrying out high temper- ature reactions, such as combustion reactions at temperatures of the order of 1000°-1400°C, are disclosed. The catalytical- ly active materials include precious metals, base metals or their oxides, or precious metals in combination with base metals, deposited on a catalyst slip or composite which con- tains alumina in admixture with a metal oxide component. The metal oxide component consists of a mixture of strontia or barium oxide with either molybdenum trioxide, zirconia, silica, or stannous oxide, or of a mixture of lanthana with either silica or stannous oxide. The slips or carrier com- positions are calcined at a temperature at at least 500°C before deposition of the precious metal or base metal material, and are characterized by having a surface area of at least 20 m2/g after calcination at a temperature of 1200°C for 4 hours.

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