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US 9,540,457 B1Granted
Ziegler-natta—metallocene dual catalyst systems with activator-supports
AssigneeChevron Phillips Chemical Company LP
InventorsErrun Ding, Qing Yang, Lloyd W. Guatney, Jeffrey F. Greco
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Abstract
Catalyst systems having both a metallocene catalyst component and a Ziegler-type catalyst component are disclosed. Such catalyst systems can contain a metallocene compound, a co-catalyst, and a supported catalyst containing a fluorided silica-coated alumina, a magnesium compound, and vanadium and/or tetravalent titanium.
Claims20
A catalyst composition comprising:
- (A) a supported catalyst comprising:
- (a) a fluorided silica-coated alumina;
- (b) a magnesium compound;
- and
- (c) titanium (IV) and/or vanadium;
- (B) a metallocene compound;
- and
- (C) a co-catalyst.
5 more elements
A process to produce a catalyst composition, the process comprising:
- (i) contacting:
- (a) a fluorided silica-coated alumina;
- (b) a magnesium compound;
- and
- (c) a titanium (IV) compound and/or vanadium compound;
- to form a supported catalyst;
- and
- (ii) contacting the supported catalyst, a metallocene compound, and a co-catalyst to form the catalyst composition.
5 more elements
Dependencies are inferred from the claim text.