Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1996-08-22
2000-09-26
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...
502103, 502104, 502108, 502107, 502111, 502117, 502523, B01J 3100, B01J 3700, C08F 402, C08F 460
Patent
active
061242292
ABSTRACT:
Disclosed is a process for preparing a supported metallocene catalyst by introducing, in a first stage, a gas stream comprising an organoaluminum compound, an inert support material and water, into a first gas phase reactor; allowing the mixture to react under conditions effective to form an aluminoxane supported on said inert support material; metering a second gas stream comprising a metallocene into said gas phase reactor; allowing said mixture to react under conditions effective to form a supported metallocene catalyst; and drying, in a second stage, said supported metallocene catalyst, wherein said drying is carried out in a gas phase reactor. An alternative process comprises introducing, in a first stage, a gas stream comprising an organoaluminum compound, an inert support material, a metallocene and water, into a first gas phase reactor; allowing the mixture to react under conditions effective to form an aluminoxane supported with said metallocene on said inert support material; and drying, in a second stage, said supported metallocene catalyst, wherein said drying is carried out in a gas phase reactor.
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Becker Ralf-Jurgen
Rieger Rainer
Bell Mark L.
Pasterczyk J.
Witco GmbH
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