| http://www.w3.org/ns/prov#value | - The average particle diameter of the thus prepared catalyst for the polymerization is usually in the range of 2 to 200 ??m, preferably 10 to 150 ??m, particularly preferably 20 to 100 ??m, and the specific surface area of the catalyst is usually in the range of 20 to 1000 m2 /g, preferably 50 to 500 m2 /g.
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