Halogen-containing compound and use thereof, catalyst composition, and ethylene oligomerization, trimerization and tetramerization methods

US11306040B2 · kind B2 · utility

Assignees

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

Inventors

• Hongfei Wu · Beijing, CN
• Mingfang Zheng · Beijing, CN
• Songshuang Hu · Beijing, CN
• Tonglin Li · Beijing, CN
• Jun Liu · Dressendorf, DE
• Ke Xu · 流花街道, CN
• Xiaoqing Wang · Suzhou, CN
• Feng Pan · Kunshan, CN

Key dates

• Filing date: Oct 30, 2019
• Grant date: Apr 19, 2022
• Expiry date: Oct 30, 2039

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/52
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A halogen-containing compound as shown in a formula I can be used as a ligand for an ethylene oligomerization catalyst composition. The ethylene oligomerization catalyst composition containing the halogen-containing compound can be used to catalyze ethylene oligomerization, trimerization and tetramerization reactions. As a ligand of a catalyst for ethylene oligomerization, a fluoropolymer can effectively improve the catalytic performance of a catalyst system, and particularly exhibits improved activity and selectivity in an ethylene oligomerization reaction.