Fluorided aluminas, catalysts, and polymerization processes

Details Fluorided aluminas, catalysts, and polymerization processes Fluorided aluminas, catalysts, and polymerization processes

1992-08-14

1993-06-15

Schofer, Joseph L.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Halogen or compound containing same

502231, 502320, 526 99, 526106, B01J 27132

Patent

active

052198170

ABSTRACT:
High surface are aluminas are pre-calcined to form gamma-alumina. In one embodiment, the gamma-alumina is treated with an anhydrous solution of a fluorine-containing compound. In a second embodiment, alumina is precipitated in the pores of the gamma-alumina and then treated with a fluorine-containing compound. In a third embodiment a cogel of aluminum trifluoride and aluminum hydroxide is prepared. The three inventive fluorided alumina supports can be impregnated with a transition metal, preferably chromium, to form a catalyst system which can be used to polymerize mono-1-olefins.

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patent: 4011382 (1977-03-01), Levine
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patent: 4596862 (1986-06-01), McDaniel et al.
patent: 4659690 (1987-04-01), McDaniel et al.
patent: 4681869 (1987-07-01), Kukes et al.
patent: 4806513 (1989-02-01), McDaniel et al.

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