MIXED MAGNESIUM DIALKOXIDE PARTICULATE, METHOD FOR SYNTHESIZING SAME, AND METHOD FOR USE THEREOF

摘要

A mixed magnesium dialkoxide particulate obtained by direct solid-liquid reaction between particulate magnesium metal with a mean particle size of 50 µm to 500 µm and two or more alcohols including ethyl alcohol and at least one C3-6 alcohol, and comprising magnesium diethoxide, wherein the content of alkoxides other than ethoxide is 2.5 to 15 mol% of the total, the mean particle size (D 50 ) is 20 to 100 µm and the bulk density is at least 0.4 g/ml. The mixed magnesium dialkoxide is for use as a catalyst component for polymerization of olefins such as propylene, exhibits high breaking strength, and when used for preparation of a polymerization catalyst, high polymerization activity is exhibited resulting in a high catalyst product yield.