含有不同配体的钴配合物/EAO催化乙烯齐聚

考察了（bipy)CoCl2,(C6H5N=C-C6H4-o-O)2Co和（acac)2CO 3种配合物与EAO组成的二元催化体系A，B和C，在不同的反应温度，铝钴比以及不同反应时间对乙烯齐聚催化活性和选择性的影响，结果表明，3种催化体系都对催化乙烯齐聚反应有活性，在相同的反应条件下，3种催化体系对乙烯齐聚的催化活性顺序为：A＞B＞C，在反应温度为180摄氏度时，催化体系（bipy)CoCl2/EAO的活性为2441g/(gCo.H)，产物中低碳烯烃的选择性为95．9％。

Ethylene Oligomerization Catalyzed by Co(Ⅱ) Complexes/EAO

Ethylene oligomerization catalyzed by three binary systems of (bipy)CoCl2(A),(C6H5N=CC6G4-o-O)2Co(B),(acac)2Co(C) with EAO are studied.The effects of reaction temperature,Al/Co ratio and reaction time on catalytic activity and selectivity are investigated.The results show that three binary systems A,B,C are all active for ethylene oligomerization and in order A>B>C.The catalytic activity of (bipy)CoCl2/EAO(A) is 2 411 g/(g Co*h) and selectivity of C=4～10 is 95.9% at 180 ℃.