甲基铝氧烷催化丙烯低聚.pdf

学兔兔 化 工 进 展 2008年第27卷第l1期 CHEMICAL INDUSTRY AND ENGINEERING PROGRESS ·1805· 后过渡金属Ni配合物／甲基铝氧烷催化丙烯低聚 陈洪侠，牛 磊，宁英男，姜 涛 (大庆石油学院化学化工学院，黑龙江 大庆 163318) 摘 要：设计并合成了一种新型的后过渡金属 Ni配合物【ArN=C(R~IC(R)=NAr]NiClz(R，R=I，8一naphth—diyl， Ar==x—C6H4，x=p—CH )。采用该配合物／甲基铝氧烷(MAO)组成的催化体系催化丙烯低聚，研究了低聚反应温度、 A1／Ni摩尔比、反应压力等因素对催化剂的活性及低聚产物碳数分布的影响。结果表明：该配合物催化丙烯低聚 具有较高的催化活性，产物主要以四聚物、五聚物为主。 关键词：丙烯低聚；后过渡金属配合物；甲基铝氧烷 中图分类号：TQ 032．42 文献标识码：A 文章编号：1000—6613(2008)11—1805—04 Investigation of orooylene oli~,merization catalyzed by novelInvestigation ot propylene oligomelazation catalyzeo Dy novel post transition,st-transition- metal nickel complex／methylaluminoxane catalyst CHENHongxia，NIULei，NING Yingnan，JIANG Tao (Department ofChemistryChemical Engineering，Daqing Petroleum Institute，Daqing 163318，Heilongjiang，China) Abstract：A new post—transition metal complex[ArN=C(R)C(R)=NAr]NiCI2(R，R=I，8一naphth—diyl， Ar=x—C6I44，x=p—CH3)was designed and synthesized．The propylene oligomerization catalyzed by this complex with MAO as cocatalyst was studied．The effects of reaction temperature，A1／Ni molar ratio， reaction pressure on the catalytic activity and oligomer distribution were investigated．The results indicated that novel catalyst system had high activity for propylene oligomerization．The products were mainly tetramer and pentamer． Key words：propylene oligomerization；late transition metal complex；methylaluminoxane 丙烯低聚物为浅黄色透明液体，是合成高辛烷 烯低聚的研究还非常少。本研究设计并合成了一类 值汽油添加剂、洗涤剂、增塑剂、香料、表面活性 新型的后过渡金属Ni配合物，考察了该配合物／甲 剂、润滑油添加剂等精细化工产品的重要原料，也 基铝氧烷 (MAO)组成的催化体系催化丙烯低聚行