CATALYST FOR OLEFIN POLYMERIZATION AND POLYMERIZATION THEREOF

摘要

PROBLEM TO BE SOLVED: To provide a better catalyst for olefin polymerization as well as polymerization processes which give better performance in a cost-effective manner.SOLUTION: A process for preparing a catalyst for polymerization of ethylene includes the steps of (i) contacting a magnesium based precursor with a solvent; and (ii) then contacting the magnesium based precursor in the solvent with a transition metal compound to obtain the catalyst, where step (ii) is a single contact step. The contact time with the solvent in step (i) is immediate to 5 hours. The contact temperature with the solvent in step (i) is 10-200°C.SELECTED DRAWING: Figure 1