Internal electron donor compound for preparing α-olefin polymerization catalyst component

US11186660B2 · kind B2 · utility

Assignee

• Yingkou Xiangyang Catalyst Co., Ltd

Inventors

• Licai Wang · Yingkou, CN
• Zhanxian Gao · 东风镇, CN
• Rubing Han · 东风镇, CN
• Tianxiang Gao · 东风镇, CN
• Qiuju Chen · 东风镇, CN
• Limei Yu · 东风镇, CN
• Wei Li · 东风镇, CN
• Guotong Zheng · 东风镇, CN
• Qingxin Dong · 东风镇, CN

Key dates

• Filing date: Mar 28, 2019
• Grant date: Nov 30, 2021
• Expiry date: Feb 27, 2040

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C69/80
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

An internal electron donor compound for preparing α-olefin polymerization catalyst component, including two kinds of electron donors; the proportion of the two kinds of electron donors in the compounding preparation of the catalyst is determined via designed experiments so as to obtain a catalyst component having good comprehensive performance or a particular performance. The electron donor compound of the present invention can be used in the preparation of α-olefin polymerization and co-polymerization catalyst component, particular the preparation of propylene polymerization catalyst component, and is applicable to prepare the propylene polymerization catalyst component by reacting magnesium chloride-ethanolscomlex compound carrier with titanium tetrachloride and electron donors, or to directly prepare the propylene polymerization catalyst component by reacting magnesium chloride, alcohols, titanium tetrachloride, and internal electron donor. In addition, also provided is a theoretical basis for selecting a proper electron donor combination from a plurality of electron donors.