烯烃聚合用茂金属催化剂及其载体  

METALLOCENE CATALYSTS AND THEIR SUPPORTS FOROLEFIN POLYMERIZATION

作　　者：冯思涵 周晨光 王东军 王伟众 郝海军[2] 贾建光[2] 徐庆红[2] Feng Sihan;Zhou Chenguang;Wang Dongjun;Wang Weizhong;Hao Haijun;Jia Jianguang;Xu Qinghong(Daqing Chemical Engineering Research Center,PetroChina Petrochemical Research Institute,Daqing,Heilongjiang 163000;College of Chemistry,Beijing University of Chemical Technology)

机构地区：[1]中国石油石油化工研究院大庆化工研究中心,黑龙江大庆163000 [2]北京化工大学化学学院

出　　处：《石油炼制与化工》2024年第9期177-186,共10页Petroleum Processing and Petrochemicals

基　　金：中国石油天然气股份有限公司合同项目(DQZX-KY-ZZ-019)。

摘　　要：由于在α-烯烃、二烯烃以及苯乙烯聚合中的单中心催化性能,茂金属催化剂备受学术界和企业界的关注。为了进一步提高催化剂的活性、利用效率以及防止粘釜现象的发生和有效控制催化产物的微形貌,茂金属催化剂通常要负载在载体上进行使用。对茂金属催化剂的基本结构及发展历程进行了介绍,综述了茂金属催化剂载体的种类,包括MgCl 2、分子筛或多孔材料、层状材料、聚合物、碳纳米管和石墨、硅胶载体,总结了其自负载的特点和性能,指出开发高活性催化剂及其高效负载化工艺仍是今后该领域的重要工作。Metallocene catalysts have attracted attention from both academic and business communities due to the single center catalytic performance in the polymerization ofα-olefins,dienes and styrene.In order to further improve the activity and utilization efficiency of catalysts,prevent the occurrence of kettle sticking phenomenon and effectively control the microstructure of catalytic products,metallocene catalysts are usually loaded on the carrier for use.The basic structure and development history of metallocene catalysts were introduced,and the kinds of supports for metallocene catalysts were summarized,including MgCl 2,molecular sieves or porous materials,layered materials,polymers,carbon nanotubes and graphite,and silica gel,and self-loading characteristics and properties were summarized.It was pointed out that it was still an important work to search for highly active catalysts and their efficient loading processes in this field in the future.

关 键 词：茂金属催化剂 单中心催化 聚烯烃 载体 

分 类 号：O631.5[理学—高分子化学] O643.36[理学—化学]