引用本文:
刘东兵, 宋焕玲, 李达刚. 镍螯合物催化乙烯齐聚制低碳T-烯烃[J]. 应用化学,
1997, 14(3): 99-101.
Citation: Liu Dongbing, Song Huanling, Li Dagang. Catalytic Oligomerization of Ethylene to Lower α-Olefins by Nickel Chelate[J]. Chinese Journal of Applied Chemistry, 1997, 14(3): 99-101.
Citation: Liu Dongbing, Song Huanling, Li Dagang. Catalytic Oligomerization of Ethylene to Lower α-Olefins by Nickel Chelate[J]. Chinese Journal of Applied Chemistry, 1997, 14(3): 99-101.
English
Catalytic Oligomerization of Ethylene to Lower α-Olefins by Nickel Chelate
Abstract:
The oligomerization of ethylene catalyzed by P-O ligands, diphenylphosphi nobenzoic acid(DPP) and diphenylphosphinoacetic sodium(DPE), has been investigated. In catalytic system DPP/NiCl2·6H2O/NaBH4 the content of lower olefins (C4=~C8=) increases with increase of DPP/Ni molar ratio and the content of higher olefins decreases markedly. Phosphines P(CH3)2Ph, P(OPh)3, P(C4H9)3, PClPh2 and PPh3 added in the catalytic system DPE/NiCl2·6H2O/NaBH4 increase the content of C4= up ot 77.96%~95.29% from 49.45%(without their addition). Among these phosphines only P(C4H9)3 could increase the selectivity to linear T-olefin. The reaction conditions have been investigated.
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Key words:
- ethylene
- / catalytic oligomerization
- / T-olefin
- / nickel chelate
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