Internal electron donor compound for preparing α-olefin polymerization catalyst component
申请人:YINGKOU XIANGYANG CATALYST CO., LTD
公开号:US10287371B2
公开(公告)日:2019-05-14
An internal electron donor compound for preparing α-olefin polymerization catalyst component, including two kinds of electron donors; the proportion of the two kinds of electron donors in the compounding preparation of the catalyst is determined via designed experiments so as to obtain a catalyst component having good comprehensive performance or a particular performance. The electron donor compound of the present invention can be used in the preparation of α-olefin polymerization and co-polymerization catalyst component, particular the preparation of propylene polymerization catalyst component, and is applicable to prepare the propylene polymerization catalyst component by reacting magnesium chloride-ethanols complex compound carrier with titanium tetrachloride and electron donors, or to directly prepare the propylene polymerization catalyst component by reacting magnesium chloride, alcohols, titanium tetrachloride, and internal electron donor. In addition, also provided is a theoretical basis for selecting a proper electron donor combination from a plurality of electron donors.
一种用于制备α-烯烃聚合催化剂组分的内部电子供体化合物,包括两种电子供体;通过设计实验确定两种电子供体在催化剂复配制备中的比例,以获得综合性能良好或具有特定性能的催化剂组分。本发明的电子供体化合物可用于制备α-烯烃聚合和共聚合催化剂组分,特别是丙烯聚合催化剂组分的制备,适用于氯化镁-乙醇复合物载体与四氯化钛和电子供体反应制备丙烯聚合催化剂组分,或直接由氯化镁、醇类、四氯化钛和内部电子供体反应制备丙烯聚合催化剂组分。此外,还提供了从多种电子供体中选择合适的电子供体组合的理论依据。