基于溶解析出体系的N催化剂开发进展  

Development of N-catalysts based on dissolution-precipitation system

作　　者：施展 付梅艳 周俊领[1] 岑为[1] 严立安[1] Shi Zhan;Fu Meiyan;Zhou Junling;Cen Wei;Yan Li’an(Sinopec Beijing Research Institute of Chemical Industry,Beijing 100013,China)

机构地区：[1]中国石化北京化工研究院,北京100013

出　　处：《石油化工》2022年第7期837-843,共7页Petrochemical Technology

摘　　要：N催化剂是通过溶解析出法制备的第四代聚丙烯Ziegler-Natta催化剂,广泛应用于工业生产中。综述了基于溶解析出体系N催化剂的开发进展。重点介绍了N催化剂制备工艺的不同改进方式,包括调整原料比例、应用新型内给电子体和新型助析出剂、引入功能性化合物及开发乳化成型工艺。展望了基于溶解析出体系N催化剂的未来研究方向。N-catalyst,which is widely used in industrial production,is the fourth generation Ziegler-Natta catalysts for polypropylene polymerization.This paper reviews the research status of N-catalysts based on dissolution-precipitation method.Different modifications of N-catalyst preparation process are highlighted,including the adjustment of raw material ratio,the application of new internal electron donors and new precipitation auxiliaries,the introduction of functional compounds and the development of emulsification technique.Future research directions of N-catalysts based on dissolution-precipitation system are prospected.

关 键 词：聚丙烯 ZIEGLER-NATTA催化剂 N催化剂 溶解析出 

分 类 号：TQ426.94[化学工程]