Spray dried titanium-containing catalyst

Details Spray dried titanium-containing catalyst Spray dried titanium-containing catalyst

B - Operations, Transporting

01

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252/103, 402/631

B01J 37/02 (2006.01) B01J 23/26 (2006.01) B01J 29/00 (2006.01) B01J 37/03 (2006.01) C08F 10/00 (2006.01) C08F 210/02 (2006.01) C08F 210/16 (2006.01)

Patent

CA 1074289

ABSTRACT A process for producing a catalyst comprising forming a hydrogel by contacting an alkali metal silicate with a material selected from the group consisting of acids, acidic salts, and carbon dioxide, said hydrogel having coprecipitated therewith a titanium compound in an amount sufficient to give 1 to 10 weight percent titanium; spray drying the thus-formed hydrogel to form a xerogel; thereafter calcining said xerogel to form said catalyst, and during said process introducing chromium in an amount sufficient to give 0.1 to 20 weight percent chromium calculated at CrO3 based on the total weight of said catalyst. The catalyst is used to produce olefin polymers exhibiting an outstanding resistance to environmental stress cracking.

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