Citation: Yu Liang ZHANG, Ming Xing QIAN, Ren HE. Ethylene Oligomerization by (dppe) MCl₂ [M=Fe(II), Co(II), Ni(II)] Complexes/EAO[J]. Chinese Chemical Letters, ;2001, 12(12): 1115-1118. shu

Ethylene Oligomerization by (dppe) MCl₂ [M=Fe(II), Co(II), Ni(II)] Complexes/EAO

State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116012

Received Date: 27 February 2001
Revised Date: 31 August 2001

The catalytic properties of a series of (dppe) MCl₂[M=Fe(II), Co(II), Ni(II)] in combination with EAO (ethylaluminoxane) for ethylene oligomerization have been investigated. Treatment of the bidentate phosphine metal complexes with EAO in toluene generated in situ active catalysts which catalyze oligomerizaton of ethylene to low-carbon olefins. The effects of reaction temperature, ratios of n(Al):n(M) and reaction periods on catalytic activity and product distribution have been studied. The activity of cobalt complex with EAO at 200℃ was 4021 g/g(Co)·h, and the selectivity of C_4-10 olefins is 95.5%.
- Ethylene oligomerization,
- bidentate phosphine complexes,
- EAO,
- α-olefins
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