乙烯选择性三聚复配催化体系的设计及评价  

Design and evaluation of ethylene trimerization catalysts with composite ligands

作　　者：王雅珍[1,2,3] 王力博[2] 陈洁[1] 王斯晗[2] 杨玉林[3] 

机构地区：[1]齐齐哈尔大学材料科学与工程学院,黑龙江齐齐哈尔161006 [2]中国石油天然气股份有限公司大庆化工研究中心,黑龙江大庆163714 [3]哈尔滨工业大学化工学院,黑龙江哈尔滨150001

出　　处：《化工进展》2011年第3期520-523,共4页Chemical Industry and Engineering Progress

基　　金：中国石油天然气股份有限公司项目(09-07-02-11)

摘　　要：研究了异辛酸铬[Cr(Ⅲ)2-EH]/2,5-二甲基吡咯(DMP)/双膦胺型配体(PNP)/三乙基铝(TEA)/1,1,2,2-四氯乙烷(Cl2CHCHCl2)催化体系对乙烯三聚反应催化剂的活性和1-己烯的选择性的影响。结果表明,复配体系能同时获得高活性和对1-己烯的高选择性。在反应温度120℃、压力5.0 MPa下,催化活性达到270 kg/(gCr.h)以上,1-己烯选择性超过95%,与单一配体DMP和PNP的催化性能相比较,综合了两者的优势。The catalytic activity of the catalyst system composed of Cr（Ⅲ）2-ethylhexanoate [Cr（Ⅲ）2-EH],2,5-dimethylpyrrole（DMP）,diphenylphosphinoamine（PNP）,triethylaluminium（TEA）and 1,1,2,2-tetrachloethxane in ethylene trimerization and the selectivity for 1-hexene were studied.The results showed that the catalyst system improved the activity and selectivity simultaneously.A catalyst activity exceeding 270 kg/gCr per hour was achieved at 120 ℃ and 5.0 MPa,and the selectivity for 1-hexene was more than 95%.Compared with the single ligand DMP or PNP,the catalyst system with composite ligands combined their respective advantages.

关 键 词：铬 双膦胺 乙烯 三聚 1-己烯 

分 类 号：O643[理学—物理化学] TQ53[理学—化学]