Twice-aged porous inorganic oxides, catalysts, and...

Details Twice-aged porous inorganic oxides, catalysts, and... Twice-aged porous inorganic oxides, catalysts, and...

C - Chemistry, Metallurgy

08

F

402/373, 252/39

C08F 4/18 (2006.01) B01J 21/06 (2006.01) B01J 37/03 (2006.01) C01B 33/16 (2006.01) C08F 4/24 (2006.01) C08F 4/78 (2006.01) C08F 10/00 (2006.01) C08F 10/02 (2006.01)

Patent

CA 1336282

A silica-titania cogel or silica-titania-chromium tergel is first aged at a substantially neutral pH, then aged at an alkaline pH, and then spray dried or azeotrope dried to form a xerogel. Optionally, a pore- preserving agent can be added prior to drying. The cogel can be impregnated with a chromium compound. The chromium-containing catalyst is activated by calcination. The activated catalyst can be used as a polymerization catalyst to polymerize mono-1-olefins.

604450

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