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.
出处
《高分子通报》
CAS
CSCD
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
关键词
铬系催化剂
乙烯
齐聚
聚合
聚乙烯
催化活性
Chromium based catalyst
Ethylene
Oligomerization
Polymerization