China Petroleum Chemical Corporation

Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation

Beijing Research Institute of Chemical Industry

Xingbo Li

Yu Wang

Tianyi Li

Zhong Tan

Zhiwu Wang

Haixiang Cui

Peng Kou

Liang Pan

Zhengyang Guo

Jun Xiao

Ling Yang

Li'an Yan

Huijuan Xu

Kai Zhang

The invention relates to a catalyst component for olefin (co)polymerization, to preparation thereof, to a catalyst comprising the same, and to use thereof in olefin (co)polymerization. The catalyst component of the invention comprises magnesium, titanium, halogen, inner electron donor compound, and alkoxy group derived from a surface modifier, wherein the content of the alkoxy group derived from the surface modifier is in a range of from 0.01 to 3 percent by weight, based on the weight of the catalyst component.

Catalyst component for olefin (co)polymerization, preparation thereof, a catalyst comprising the same and use thereof

The present invention provides a catalyst component used for homopolymerization or co-polymerization of ethylene, comprising at least one suitable electron donor compound supported on a composition containing magnesium and titanium, wherein the electron donor compound is selected from the group consisting of aliphatic ethers, alicyclic ethers, aromatic ethers, aliphatic ketones and alicyclic ketones, and wherein the composition containing magnesium and titanium is prepared by dissolving a magnesium compound into a solvent system to form a homogeneous solution and then contacting the solution with a titanium compound in the presence of a precipitation aid to precipitate the composition. The present invention also relates to a method for the preparation of said catalyst component and a catalyst comprising thereof, and to use of the catalyst in homopolymerization of ethylene or co-polymerization of ethylene with at least one C&#x2013;C&#x3b1;-olefin.

Solid catalyst component for polymerization of ethylene, preparation thereof and a catalyst containing the same

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Beijing, China

Xingbo Li