乙烯齐聚催化剂中配体的改进研究  

Study on the Improvement of Ligands in Catalyst for Ethylene Oligomerization

作　　者：赵西明[1] 吴红飞[1] 

机构地区：[1]中国石油化工股份有限公司北京燕山分公司,北京102500

出　　处：《石化技术》2010年第1期6-8,共3页Petrochemical Industry Technology

摘　　要：二膦型铬基催化剂能有效催化乙烯选择性三聚或四聚分别生产1-己烯或1-辛烯。介绍了制备该类二膦型配体的新方法,与文献方法相比,缩短了反应步骤,使工艺过程简化,催化剂配体的收率由45%增加到70%。选取不同取代基的二瞵配体进行乙烯齐聚合,可使产品中1-辛烯的选择性达70%,使1-己烯选择性超过90%。Diphosphinoamine chromium-based catalyst can catalyze ethylene by the selectivity of trimerization or tetramerization to the production of 1-hexene or 1-octene.A novel three-step synthesis for the ligands is established instead of the traditional one,not only the process is simplified,but also the yield is improved from 45%to 70%.Ethylene oligomerization using different substituted ligands can give the selectivity of 70% in 1-octene,or over 90%in 1-hexene.

关 键 词：乙烯齐聚 Α-烯烃 1-己烯 1-辛烯 催化剂 

分 类 号：O643.36[理学—物理化学]