Process for preparing a porous, pure silica

Details Process for preparing a porous, pure silica Process for preparing a porous, pure silica

C - Chemistry, Metallurgy

08

F

252/39, 402/631

C08F 4/16 (2006.01) B01J 20/10 (2006.01) B01J 23/26 (2006.01) C01B 33/16 (2006.01) C08F 10/00 (2006.01)

Patent

CA 1126244

ABSTRACT OF THE DISCLOSURE Process for the preparation of a porous, pure silica which is particularly suitable as a catalyst support for a chromium-oxide catalyst used in polymerizing of olefins. The process comprises the steps of con- verting a silicon-halogen compound to a silica and then admixing with water to form a silica gel. The gel is then spray-dried to achieve the required particle size and pore volume. The silica can then be made into a catalyst by placing on the support a chromium compound and then heating in a non-reducing atmosphere.

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