Spherical magnesium halide adduct, a catalyst component and a catalyst for olefin polymerization prepared therefrom

US9499569B2 · kind B2 · utility

Assignees

• CHINA PETROLEUM & CHEMICAL CORPORATION · CN
• BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION · CN

Inventors

• Xianzhi Xia · Beijing, CN
• Yuexiang Liu · Beijing, CN
• Jigui Zhang · Beijing, CN
• Xinsheng Wang · 红钢城街道, CN
• Ping Gao · Hong Kong, CN
• Suzhen Qiao · Beijing, CN
• Maoping Yin · Beijing, CN
• Weili Li · Beijing, CN
• Tianyi Zhang · Huangyang, CN
• Renqi Peng · Beijing, CN
• Ying-Zhong Chen · Knoxville, US
• Zhihui Zhang · Katy, US

Key dates

• Filing date: Jul 15, 2009
• Grant date: Nov 22, 2016
• Expiry date: Mar 26, 2031

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F10/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A magnesium halide adduct represented by the formula (I): MgX2.mROH.nE.pH2O, in which X is chlorine, bromine, a C1-C12 alkoxy, a C3-C10 cycloalkoxy or a C6-C10 aryloxy, with the proviso that at least one X is chlorine or bromine; R is a C1-C12 alkyl, a C3-C10 cycloalkyl or a C6-C10 aryl; E is an o-alkoxybenzoate compound represented by the formula (II): in which R1 and R2 groups are independently a C1-C12 linear or branched alkyl, a C3-C10 cycloalkyl, a C6-C10 aryl, a C7-C10 alkaryl or an C7-C10 aralkyl, the R1 and R2 groups are identical to or different from the R group; m is in a range of from 1.0 to 5.0; n is in a range of from 0.001 to 0.5; and p is in a range of from 0 to 0.8, is disclosed. A catalyst component useful in olefin polymerization, which comprises a reaction product of (1) the magnesium halide adduct, (2) a titanium compound, and optionally (3) an electron donor compound, is also disclosed.