MIXED MAGNESUM DIALKOXIDE PARTICULATE, METHOD FOR SYNTHESIZING SAME, AND METHOD FOR USE THEREOF
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United States of America Patent
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Issued Date -
Dec 20, 2012
app pub date -
Feb 24, 2011
filing date -
Feb 25, 2010
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Abandoned
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Abstract
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 (D50) 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.
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