铬系乙烯齐聚和聚合催化剂  

Chromium-based catalyst for Ethylene Oligomerization and Polymerization

作　　者：刘元霞[1] 方义群[1] 宋炬伟 李伟 胡友良[1] 

机构地区：[1]中国科学院化学研究所,分子科学研究中心,工程塑料国家重点实验室,北京100080 [2]辽宁省营口市向阳化工总厂,营口115005

出　　处：《高分子通报》2002年第2期29-37,共9页Polymer Bulletin

基　　金：国家自然科学基金 (NO .2 9734 1 4 1 );SINOPEC联合资助

摘　　要：综述了近年来国内外铬系催化剂的最新研究进展。介绍了该类催化剂齐聚和聚合的性能研究和应用 ,讨论了该催化剂长期引起争议的活性中心、活性价态 ,以及反应机理 ,并同时预测了铬系催化剂在工业和纳米技术方面的发展趋势。In this Paper,recent advances of the chromium\|based catalysts developed,at home and abroad,were reviewed.From the incisive analysis based on the documents collected,and a longstanding debate over questions about chemical nature of the active site(s),the oxidation state of active chromium,and the mechanism of initiation has been resoluted,it was concluded that chromium\|based catalysts would continue to play an important role in ethylene industry and take up some fields in nanocomposite materials in coming years.

关 键 词：铬系催化剂 乙烯 齐聚 聚合 聚乙烯 催化活性 

分 类 号：TQ316.314[化学工程—高聚物工业]