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Yazhen Wang
Yazhen Wang
School of Material Science and Engineering, Qiqihar University, Qiqihar 161006, Heilongjiang, China
Daqing Petrochemical Research Center, PetroChina Company Limited, Daqing 163714, Heilongjiang, China
School of Material Science and Engineering, Qiqihar University, Qiqihar 161006, Heilongjiang, China
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Daqing Petrochemical Research Center, PetroChina Company Limited, Daqing 163714, Heilongjiang, China
School of Material Science and Engineering, Qiqihar University, Qiqihar 161006, Heilongjiang, China
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Libo Wang
Libo Wang
Daqing Petrochemical Research Center, PetroChina Company Limited, Daqing 163714, Heilongjiang, China
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Jie Chen
Jie Chen
School of Material Science and Engineering, Qiqihar University, Qiqihar 161006, Heilongjiang, China
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Sihan Wang
Sihan Wang
Daqing Petrochemical Research Center, PetroChina Company Limited, Daqing 163714, Heilongjiang, China
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Yulin Yang
Yulin Yang
Department of Chemical Engineering, Harbin University of Technology, Harbin 150001, Heilongjiang, China
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Qian Chen
Qian Chen
Daqing Petrochemical Research Center, PetroChina Company Limited, Daqing 163714, Heilongjiang, China
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Abstract
In this article, (Ph2P)2N(cyclopentyl) ligands were prepared. The catalyst system that consists of main catalyst acetylacetone chromium (Cr(acac)3), cocatalyst triethyaluminium (TEA), ligands composited with 2,5-dimmethylpyrrole (DMP) and (Ph2P)2N(cyclopentyl) was used to trimerize ethylene to 1-hexene. The catalytic activity and selectivity of ethylene trimerization were studied under various reaction conditions (reaction temperature, ethylene pressure and cocatalysts). It was found that the Cr(acac)3/TEA/(Ph2P)2N(cyclopentyl) · (DMP) catalytic system catalyzed ethylene trimerization in situ, which gave an activity of 273.83 kg/gCr h−1, selectivity of 95.74%, and a spot of PE at 50 °C and 5 MPa ethylene pressure. TEA was an effective cocatalyst for ethylene trimerization. Compared with a single ligand such as (Ph2P)2N(cyclopentyl) or DMP, the composite ligands combined their respective advantages.
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| Reaction Kinetics, Mechanisms and Catalysis | |
|---|---|
| Language | English |
| Size | B5 |
| Year of Foundation |
1974 |
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| Founder | Akadémiai Kiadó |
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H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. |
| Publisher | Akadémiai Kiadó Springer Nature Switzerland AG |
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| ISSN | 1878-5190 (Print) |
| ISSN | 1878-5204 (Online) |
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