Preparation method of a catalyst component for olefin polymerization

US10174141B2 · kind B2 · utility

Assignee

• China Petroleum & Chemical Corporation Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation · CN

Inventors

• Shibo Wang · Laishui, CN
• Junling Zhou · Beijing, CN
• Dongbing Liu · Hangzhou City, CN
• Lei Zhang · Beijing, CN
• Xinping Lv · Beijing, CN
• Bingquan Mao · Beijing, CN
• Zhenjie Liu · Beijing, CN
• Xin Zhou · Shanghai, CN
• Changli Zhang · Beijing, CN
• Baoquan Xing · Beijing, CN

Key dates

• Filing date: Apr 29, 2015
• Grant date: Jan 8, 2019
• Expiry date: Apr 29, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F2410/06
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention provides a preparation method of a catalyst component for olefin polymerization, comprising firstly dissolving an anhydrous magnesium halide into a mixed solvent which comprises an oxygen-containing organic titanium compound, an organic epoxy compound, a hydroxy-containing compound, and an inert solvent, and does not comprise a phosphate compound, so as to form a magnesium halide solution; then mixing the magnesium halide solution with a halogen-containing compound to precipitate a solid, so as to obtain the catalyst component, wherein the halogen-containing compound comprises at least one selected from a group consisting of halogen and titanium-containing compounds, halogenated organic hydrocarbon compounds, acyl halide compounds, halogen and phosphorus-containing compounds, halogen and boron-containing compounds, halogenated organic aluminum compounds, and halogen and silicon-containing compounds. The catalyst component prepared by the present invention has better particle morphology, and a good hydrogen response, and thus is favorable to use of the catalyst in a slurry or gas polymerization process device.