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个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职：无
其他任职：精细化工国家重点实验室副主任、大连理工大学-瑞典皇家工学院分子器件联合研究中心主任
性别：男
毕业院校：大连理工大学
学位：博士
所在单位：化工学院
学科：应用化学. 精细化工
办公地点：大连理工大学西部校区化工实验楼E-223
联系方式：0411-84986493
电子邮箱：sunlc@dlut.edu.cn
Ethylene oligomerization by salen-type zirconium complexes to low-carbon linear alpha-oletins
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论文类型：期刊论文
发表时间：2003-12-10
发表刊物：JOURNAL OF CATALYSIS
收录刊物：Scopus、SCIE
卷号：220
期号：2
页面范围：392-398
ISSN号：0021-9517
关键字：zirconium complexes; salen-type ligands; Schiff bases; ethylene oligomerization; low-carbon linear alpha-olefins
摘要：A series of zirconium salen-type complexes were prepared by using ZrCl4 and sodium salts of the tetradentate Schiff base ligands. In combination with Et2AlCl, they displayed moderate to high catalytic activities in ethylene oligomerization under a pressure of 1.0-1.8 MPa at 150 degreesC in toluene. The main products are C-4-C-10 olefins with good selectivity to linear alpha-olefins. The turnover frequency (TOF) of catalyst system Zr(salen)Cl-2 (.) THF/Et2AlCl, under a pressure of 1.8 MPa and in an Al/Zr molar ratio of 300, was 4.93 x 10(4) h(-1) with a satisfactory selectivity to C-4-C-10 olefins (89%), and linear alpha-olefins accounted for 95%. The steric and conjugate effects of the ligands on ethylene oligomerization, as well as the effects of cocatalysts, the Al/Zr molar ratios, the reaction temperature, the ethylene pressure, and the lifetime of the catalysts were studied. (C) 2003 Published by Elsevier Inc.