Invention Grant
US08685879B2 Emulsion process for improved large spherical polypropylene catalysts 有权
改进大型球形聚丙烯催化剂的乳液工艺

Emulsion process for improved large spherical polypropylene catalysts
Abstract:
Disclosed are spherical magnesium-based catalyst supports and methods of using the same in a Ziegler-Natta catalyst system for the polymerization of an olefin. The spherical magnesium-based catalyst supports are made by reacting a magnesium halide, a haloalkylepoxide, and a phosphate acid ester in an organic solvent that does not have to contain substantial amounts of toluene.
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