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Title:
CATALYST SYSTEM FOR ETHYLENE SELECTIVE OLIGOMERIZATION AND ETHYLENE OLIGOMERIZATION REACTION METHOD
Document Type and Number:
WIPO Patent Application WO/2019/113752
Kind Code:
A1
Abstract:
The present invention provides a catalyst system for ethylene selective oligomerization, comprising three components: a ligand a, the ligand a being a carbene group having an imidazole ring system; a transition metal compound b, the transition metal compound b being a metal compound of Group IVB to Group VIII; and an activator c, the activator c being a compound containing a Group IIIA metal. The ligand a comprises at least one group represented by general formula I, and the general formula I is as follows: wherein the bridging group A is a bridging group in which the main chain comprises an alkyl group, an alkenyl group or an aryl group, or the bridging group A is a bridging group in which the main chain comprises an alkyl group, an alkenyl group or an aryl group and has a first heteroatom, E is a linear or cyclic group containing a second heteroatom, and R is a hydrocarbyl group. The catalyst system for ethylene selective oligomerization of the present invention is used for ethylene oligomerization, in particular ethylene trimerization and ethylene tetramerization. The catalyst system has high activities, has high selectivity for target products 1-hexene and 1-octene, and causes producing less 1-butene and 1-C10+. The mass percentage of C6 to C8linear α-olefin in the product is greater than 90%.

Inventors:
JIANG, Tao (No.1038, Dagu South Road Hexi District, Tianjin 2, 300222, CN)
CHEN, Yanhui (No.1038, Dagu South Road Hexi District, Tianjin 2, 300222, CN)
ZHANG, Le (No.1038, Dagu South Road Hexi District, Tianjin 2, 300222, CN)
ALAM, Fakhre (Pakistan, PK)
SHAO, Huaiqi (No.1038, Dagu South Road Hexi District, Tianjin 2, 300222, CN)
LI, Jian (No.1038, Dagu South Road Hexi District, Tianjin 2, 300222, CN)
YAN, Bing (No.1038, Dagu South Road Hexi District, Tianjin 2, 300222, CN)
Application Number:
CN2017/115496
Publication Date:
June 20, 2019
Filing Date:
December 11, 2017
Export Citation:
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Assignee:
TIANJIN UNIVERSITY OF SCIENCE&TECHNOLOGY (No.1038, Dagu South Road Hexi District, Tianjin 2, 300222, CN)
International Classes:
B01J31/24; C07C2/36; C07C11/02; C07C11/107
Domestic Patent References:
WO2008004986A12008-01-10
Foreign References:
CN102007136A2011-04-06
CN104803818A2015-07-29
EP0611743A21994-08-24
Attorney, Agent or Firm:
BEIJING RISINGMARK INTELLECTUAL PROPERTY AGENCY (Room 432, 21 4th Floor, Area 4, Fangqunyuan, Fengtai District, Beijing 8, 100078, CN)
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