铬系乙烯齐聚和聚合催化剂

Chromium-based catalyst for Ethylene Oligomerization and Polymerization

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.