Catalysts comprising silica supported on a boehmite- like...

Details Catalysts comprising silica supported on a boehmite- like... Catalysts comprising silica supported on a boehmite- like...

B - Operations, Transporting

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252/118, 196/150

B01J 37/02 (2006.01) B01J 21/12 (2006.01) C04B 41/87 (2006.01) C10G 11/04 (2006.01)

Patent

CA 1275090

ABSTRACT OF THE DISCLOSURE Useful cracking catalysts and catalyst supports comprising silica supported on a boehmite- like surface are prepared by compositing particles of silica or hydrated silica with particles of porous boehmite and subjecting the resulting composite to high temperature steaming at a temperature of at least about 600°C for a time sufficient to disperse at least a portion of the silica over the boehmite surface as the boehmite converts to A12O3. The silica wets, spreads out and reacts with the surface hydroxyl groups of the transforming boehmite.

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