Catalyst or synthesizing 1-hexene from ethylene trimerization and application thereof

US9421533B2 · kind B2 · utility

Assignee

• PetroChina Company Limited · CN

Inventors

• Gang Wang · Milpitas, US
• Sihan Wang · Beijing, CN
• Zhonghua Yang · Yuhui District, CN
• Jiabo Qu · Yuhui District, CN
• Baojun Zhang · Shanghai, CN
• Qian Chen · San Jose, US
• Deshun Zhang · Yuhui District, CN
• Libo Wang · Beijing, CN
• Yali Wang · Lianyungang, CN
• Buwei Yu · Beijing, CN
• Xiuhui Wang · Yuhui District, CN
• Fuling Huang · Beijing, CN
• Xuemei Han · Beijing, CN
• Dongmei Niu · Yuhui District, CN
• Shukun Sun · Yuhui District, CN
• Wenchao Zhang · Shandong, CN
• Hua Li · Gongguan, TW
• Gongchen Yan · Yuhui District, CN

Key dates

• Filing date: Jul 22, 2010
• Grant date: Aug 23, 2016
• Expiry date: Oct 17, 2032

Classification

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

Abstract

A catalyst for synthesizing 1-hexene from ethylene trimerization and its application are provided. Said catalyst consists of (a) the compound containing P and N, (b) electron donor, (c) Cr compound, (d) carrier and (e) accelerator. The molar ratio of (a), (b), (c), (d) and (e) is 0.5-100:0.5-100:1:0.5-10:50-5000. The catalyst is prepared by mixing the components of (a)-(e) in an ethylene trimerization apparatus in situ and ethylene is introduced into the apparatus continuously. The prepared catalyst can be used to synthesize 1-hexene from ethylene trimerization in the inert solvents. The trimerization is performed at 30-150° C. and 0.5-10.0 MPa for 0.1-4 hours. The catalyst has high catalytic activity and high 1-hexene selectivity. During the process of ethylene trimerization, by-product polyethylene does not stick to the apparatus.