The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 12, 2022
Filed:
Jun. 19, 2019
Petrochina Company Limited, Beijing, CN;
Buwei Yu, Beijing, CN;
Tao Jiang, Beijing, CN;
Sihan Wang, Beijing, CN;
Hongling Chu, Beijing, CN;
Yan Jiang, Beijing, CN;
Hongliang Huo, Beijing, CN;
Xianming Xu, Beijing, CN;
Libo Wang, Beijing, CN;
Huaiqi Shao, Beijing, CN;
Yali Wang, Beijing, CN;
Yuanyuan Cao, Beijing, CN;
Tong Liu, Beijing, CN;
Kecun Ma, Beijing, CN;
Fuling Huang, Beijing, CN;
Xiuhui Wang, Beijing, CN;
Enhao Sun, Beijing, CN;
Yulong Wang, Beijing, CN;
PETROCHINA COMPANY LIMITED, Beijing, CN;
Abstract
The present disclosure provides a method and a catalyst for selective oligomerization of ethylene. The raw material for the catalyst consists of a dehydropyridine annulene-type ligand, a transition metal compound, and an organometallic compound in a molar ratio of 1:0.5-100:0.1-5000. The present disclosure also provides a method for selective oligomerization of ethylene accomplished by using the above-mentioned catalyst. The catalyst for selective oligomerization of ethylene has high catalytic activity, high selectivity for the target products 1-hexene and 1-octene, and low selectivity for 1-butene and 1-C.