PROCESS FOR PREPARATION OF CATALYST COMPONENT SUPPORTED ON HIGH PERFORMANCE CARRIER

摘要

The invention relates to a process for preparing a catalyst component supported on a carrier which comprises contacting a titanium tetrahalide in the liquid or gaseous phase with a solid in the absence of mechanical pulverization, said solid being obtained by (1) contacting a magnesium component selected from magnesium halides and their adducts with monocyclic aromatic monocarboxyilc acid esters with a monocyclic aromatic monocarboxylic acid ester by mechanical pulverization, or (2) contacting said magnesium component and said ester with a titanium component selected from titanium compounds of the general formula Ti(OR)nX4-n wherein R is an alkyl radical, X is a halogen atom, and n is is an integer of 0 to 4, and their complexes with monocyclic aromatic monocarboxylic acid esters by mechanical pulverization. The highly active carrier-supported catalyst component is suitable for use in the manufacture of highly crystalline polyalpha-olefins.