Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1995-06-07
1998-10-06
Bell, Mark L.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
502104, 502107, 502125, 502134, 5261243, B01J 3100, B01J 3700, C08F 402, C08F 460
Patent
active
058175911
ABSTRACT:
A method of forming a polyolefin catalyst component which includes chlorinating a magnesium alkoxide, solubilizing the chlorinated magnesium alkoxide into a hydrocarbon solvent utilizing an alcohol, and then precipitating a solid from the solvent by the dropwise addition of titanium tetrachloride. Two more titanation steps follow, the first with an electron donor, the second without an electron donor, to produce a catalyst having an improved yield of polymer.
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Bauch Christopher G.
Shamshoum Edwar S.
Bell Mark L.
Cheairs M. Norwood
Fina Technology, Inc.
Pasterczyk J.
Wheelington Jimmy D.
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