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US 4,537,869 AGranted
Tetravalent titanium treated calcined vanadium catalyst with trialkylaluminum cocatalyst
AssigneePhillips Petroleum Company
InventorMax P. McDaniel
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Abstract
A supported vanadium catalyst is provided by impregnating a vanadium compound onto a refractory support, subjecting the resulting support to calcination and thereafter contacting with a titanium component such as titanium tetrachloride. The resulting catalyst is used with a trihydrocarbylaluminum cocatalyst such as triethylaluminum and results in a supported vanadium catalyst having high activity which catalyst is sensitive to molecular weight control agents such as hydrogen.
Claims13
A method of producing a catalyst comprising:
- (a) impregnating a vanadium compound onto a particulate refractory support;
- (b) subjecting the thus supported vanadium composition to calcination;
- (c) thereafter contacting the thus calcined supported vanadium catalyst with a titanium component selected from TiCl.sub.4 and TiORCl.sub.3 wherein R is a 1 to 10 carbon atom alkyl group;
- and
- (d) contacting the resulting catalyst with a trihydrocarbylaluminum cocatalyst.
2 more elements
Dependencies are inferred from the claim text.