Process for the production of a catalyst composition for...

Details Process for the production of a catalyst composition for... Process for the production of a catalyst composition for...

C - Chemistry, Metallurgy

08

F

252/111

C08F 4/64 (2006.01) C08F 10/00 (2006.01)

Patent

CA 1081676

ABSTRACT OF THE DISCLOSURE This invention relates to a catalyst composition for polymerization of propylene, having high activity and producing polypropylene of high stereoregularity and having a low particle size distribution, which comprises: 1) reducing TiC14 by diethylaluminum chloride (DEAC), thereby forming a reduced solid (TiC13), 2) removing the aluminum compounds from the reduced catalyst, 3) treating the said reduced solid with the mixture or complex of TiC14 and diisomylether (IAE) and 4) separating the solid catalyst from the mixture. The aluminum compounds may be removed by washing with a complexing agent therefor; in a preferred embodiment the complexing agent is di-n-butyl ether.

256301

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