US 9,809,663 B2Granted

Catalyst component for olefin polymerization, preparation method thereof, and catalyst comprising same

AssigneesChina Petroleum & Chemical Corporation, Beijing Reaearch Institute of Chemical Industry, China Petroleum & Chemical Corporation

InventorsXianzhi Xia, Jin Zhao, Weili Li, Yuexiang Liu, Yongtai Ling, Ping Gao, Yang Tan, Futang Gao, Renqi Peng, Jigui Zhang

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Abstract

The present invention provides a catalyst component for olefin polymerization and a preparation method thereof, and a catalyst for olefin polymerization and an application thereof. The catalyst component for olefin polymerization comprises reaction products of the following components: (1) a solid component; (2) at least one titanium compound; and (3) at least two internal electron donors, wherein the solid component comprises a magnesium compound represented by formula (1) and an epoxide represented by formula (2), wherein R1 is a C1-C12 linear or branched alkyl; R2 and R3 are identical or different, and are independently hydrogen or unsubstituted or halogen-substituted C1-C5 linear or branched alkyl; X is halogen; m is in a range of from 0.1 to 1.9, n is in a range of from 0.1 to 1.9, and m+n=2.

Claims21

Dependent claims

A catalyst component for olefin polymerization, comprising reaction products of the following components:

(1) a solid component;
(2) at least one titanium compound;
and
(3) at least two internal electron donors;
wherein the solid component comprises a magnesium compound represented by formula (1) and an epoxide represented by formula (2),
wherein, RI is a C1-C12 linear or branched alkyl;
RII and RIII are identical or different, and are independently hydrogen or unsubstituted or halogen-substituted C1-C5 linear or branched alkyl;
X is halogen;
m is in a range of from 0.1 to 1.9, n is in a range of from 0.1 to 1.9, and m+n=2;
wherein the content of the epoxide represented by the formula (2) is in a range of from 0.01 to 0.8 moles per mole of the magnesium compound represented by the formula (1);
and
wherein the solid component is obtained by reacting a magnesium halide-alcohol adduct solution with the epoxide represented by the formula (2) in the presence of at least one polymeric dispersion stabilizer.

9 more elements

Dependencies are inferred from the claim text.