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1. 发明申请

WO2011058091A1 PROCESS FOR OLEFIN POLYMERIZATION 审中-公开
标题翻译：烯烃聚合方法
公开(公告)号：WO2011058091A1
公开(公告)日：2011-05-19
申请号：PCT/EP2010/067268
申请日：2010-11-11
申请人： BOREALIS AG , AUMO, Jeannette , MATIKAINEN, Pasi , BARTKE, Michael , ELOVIRTA, Tom , VIJAY, Sameer , LYLYKANGAS, Mikko , ELO, Pertti , HUHTANEN, Lauri
发明人： AUMO, Jeannette , MATIKAINEN, Pasi , BARTKE, Michael , ELOVIRTA, Tom , VIJAY, Sameer , LYLYKANGAS, Mikko , ELO, Pertti , HUHTANEN, Lauri
IPC分类号： C08F10/00 , C08F4/659
CPC分类号： C08F10/00 , C08F110/06 , C08F2410/01 , C08F4/65912 , C08F4/65927 , C08F2/00 , C08F2500/12 , C08F4/6492
摘要： The present invention aims to provide a process for polymerizing at least one olefin in the presence of a polymerization catalyst comprising the steps of: (A) continuously introducing a first liquid comprising a transition metal compound, an organometallic compound of a metal of Group 13 of Periodic System of Elements and a solvent, and a second liquid which together with said first liquid is capable of forming an emulsion, into an emulsification stage to produce an emulsion comprising said first liquid dispersed in said second liquid; (B) continuously withdrawing an emulsion stream from said emulsification stage and directing it into a solidification stage to form a slurry comprising a solid polymerization catalyst component comprising said transition metal compound and said organometallic compound suspended in said second liquid; (C) continuously recovering said solid polymerization catalyst component from said solidification stage; (D) directing said solid polymerization catalyst component into a first prepolymerization stage together with a monomer and an amount of second liquid wherein the monomer is prepolymerized onto said solid polymerization catalyst component so that the ratio of the weight of the polymer to the weight of said solid polymerization catalyst component is from 0.1:1 to 20:1 to form a slurry of a prepolymerized solid polymerization catalyst component suspended in said second liquid; (E) recovering said prepolymerized solid polymerization catalyst component from said first prepolymerization stage; (F) continuously introducing said prepolymerized solid polymerization catalyst component into a second prepolymerization stage together with an olefin monomer to form a prepolymerized catalyst comprising in average 100 to 1000 g of polymer per 1 gram of said solid polymerization catalyst component; (G) continuously withdrawing said prepolymerized catalyst from said second prepolymerization stage and directing it into a subsequent polymerization stage together with at least one olefin monomer to effect polymerization of the at least one olefin monomer in the presence of said prepolymerized catalyst. The polymerization process produces polymers in high yield. The morphology of the polymer powder is good and the amount of fine particle polymer is low. The process can be operated for long a long period in a stable manner.
摘要翻译：本发明的目的在于提供一种在聚合催化剂存在下聚合至少一种烯烃的方法，包括以下步骤：（A）连续引入包含过渡金属化合物的第一液体，第13族金属的有机金属化合物元素周期性系统和溶剂，以及与所述第一液体一起能够形成乳液的第二液体进入乳化阶段以产生包含分散在所述第二液体中的所述第一液体的乳液; （B）从所述乳化阶段连续抽出乳液流并将其导入固化阶段以形成包含悬浮在所述第二液体中的包含所述过渡金属化合物和所述有机金属化合物的固体聚合催化剂组分的浆料; （C）从所述固化阶段连续回收所述固体聚合催化剂组分; （D）将所述固体聚合催化剂组分与单体和一定量的第二液体一起引导到第一预聚合阶段，其中所述单体预聚合到所述固体聚合催化剂组分上，使得所述聚合物的重量与所述固体聚合催化剂组分为0.1:1至20:1，以形成悬浮在所述第二液体中的预聚合固体聚合催化剂组分的浆液; （E）从所述第一预聚合阶段回收所述预聚固体聚合催化剂组分; （F）将所述预聚合的固体聚合催化剂组分连同烯烃单体一起连续引入第二预聚合阶段，以形成预聚合的催化剂，每克所述固体聚合催化剂组分平均含有100至1000克聚合物; （G）从所述第二预聚合阶段连续地抽出所述预聚合催化剂，并将其引导至随后的聚合阶段与至少一种烯烃单体，以在所述预聚合的催化剂存在下进行至少一种烯烃单体的聚合。聚合过程以高产率生产聚合物。聚合物粉末的形态好，微粒聚合物的量低。该方法可以长时间稳定运行。

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