Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Silicon containing or process of making
Patent
1988-07-25
1991-01-01
Dees, Carl F.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Silicon containing or process of making
502242, B01J 2106
Patent
active
049818317
ABSTRACT:
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.
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Bailey F. Wallace
Boggs Elizabeth A.
Knudsen Ronald D.
McDaniel Max P.
Dees Carl F.
Jolly Lynda S.
Phillips Petroleum Company
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