High surface area oxide compositions with a pyrochlore...

Details High surface area oxide compositions with a pyrochlore... High surface area oxide compositions with a pyrochlore...

B - Operations, Transporting

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252/1, 23/229, 2

B01J 35/10 (2006.01) B01J 23/00 (2006.01) C01G 19/00 (2006.01) C01G 29/00 (2006.01) C01G 33/00 (2006.01) C01G 35/00 (2006.01) C01G 41/00 (2006.01) C01G 55/00 (2006.01) C07C 2/84 (2006.01) C07C 9/02 (2006.01) C07C 11/02 (2006.01)

Patent

CA 2018515

ABSTRACT OF THE DISCLOSURE Processes for the conversion of hydrocarbons, and most preferably methane, to higher hydrocarbons and olefins are disclosed, including contacting the hydro- carbons with a mixed metal oxide catalyst having the pyrochlore structure. Preferably, thase catalysts have the general formula AnB2O7-x, where A can be various mono-, di-, and trivalent metal cations, B can be various tri-, tetra-, penta-, and hexavalent metal cations, 0 ? n ? 2.0, and 0 ? x ? 1Ø Novel, high surface area, mixed metal oxide catalysts having the pyrochlore structure are also disclosed, including those having the formula A2B2O7, where A is divalent and B is niobium and/or tantalum, and those having the formula A2(Sn2-yAy)O7-z, where A is bismuth and/or lead, 0.0 ? y ? 1.0, and 0.0 ? z ? 1Ø

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