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Ethylene Oligomerization Catalyzed by MCl 2 (PPh 3 ) 2 Complex‐es/Ethylaluminoxane
Author(s) -
Qian MingXing,
Zhang YuLiang,
He Ren
Publication year - 2001
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.20010190907
Subject(s) - chemistry , catalysis , ethylene , toluene , selectivity , medicinal chemistry , product distribution , polymer chemistry , organic chemistry
The catalytic properties of MCl 2 (PPh 3 ) 2 (M = Fe, A; Co, B; Ni, C) in combination with ethylaluminoxane (EAO) as cocatalyst for ethylene oligomerization have been investigated. Treatment of the MCl 2 (PPh 3 ) 2 complexes with EAO in toluene generated active catalysts in situ that are capable of oligomerizating ethylene to low‐carbon olefins. The catalytic activity and product distribution were affected by reaction condition, such as reaction temperature, the ratios of Al/M and the reaction time. The activity of 1.70 × 10 5 g oligomers/ (mol Co. h) for the catalytic system of CoCl 2 (PPh 3 ) 2 with EAO at 200°C was observed, with the selectivity of 91.1% to C 4–10 olefins and 70.7% to C 4–10 linear α‐olefins.