China Petroleum Chemical Corporation

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

Sinopec Catalyst Co., Ltd.

Cuiling Xiao

Xiaodong Wang

Xin Chen

Mingzhi Gao

Haixiang Cui

Liang Pan

Jinlai Qin

Ziqiang Wang

Yanju Sun

The present disclosure provides a suspension of a solid catalyst component used in propylene polymerization and a method for preparing the same. The suspension includes the solid catalyst component and a liquid medium containing propylene and an alkane, and is preferably prepared by mixing the solid catalyst component and the alkane to obtain a mixed slurry, which is further mixed with liquid propylene. Using of a proper liquid dispersing agent at a proper proportion and amount enables the solid catalyst component to be more homogeneously dispersed, thus preventing the phenomenon of agglomeration in the polymerization process without using a large amount of the dispersing agent or any additional mixer. The present disclosure further provides a method of propylene polymerization, including feeding the suspension into a reaction system of propylene polymerization, wherein propylene polymerization is initiated under polymerization conditions.

Suspension of solid catalyst component used in propylene polymerization, method of preparing the same, and method of propylene polymerization

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Beijing, China

Cuiling Xiao