Patent ID: 6015768
Filing Date: 2000-01-18
Classification: B01J,C08F

Abstract:
A process for the preparation of heterogeneous zirconium based catalyst useful for polymerization of alpha-olefins to high molecular weight poly alpha-olefins which consists essentially of the steps of:a) mixing zirconium alkoxide or aryloxide with anhydrous magnesium chloride in an inert diluent under dry conditions and heating the mixture to a temperature of 60-100.degree. C. for 1 to 6 hours to form a zirconium-magnesium compound in the form of a slurry,b) treating the zirconium-magnesium compound with an organoaluminum compound and heating the zirconium-magnesium compound with said organoaluminum compound to a temperature of 60-100.degree. C. for 1 to 6 hours, andc) recovering said catalyst.