Process of preparing a polymerization catalyst and preparation of ethylene polymers with this catalyst

摘要

Disclosed is a catalyst comprising an inert, particulate, inorganic support onto which has been deposited a group II or III metal hydrocarbyl complex of chromium and at least one additional complex or compound of a transition metal selected from the group consisting of nickel, molybdenum, and titanium. The catalyst is activated by heating in the range 200 DEG C.-1200 DEG C. Also disclosed is the process for the polymerization of alpha -olefins in the presence of said catalyst.