公开(公告)号：US20070265400A1

公开(公告)日：2007-11-15

申请号：US11433682

申请日：2006-05-12

申请人： D. Fischbuch ,  Robert Hagerty ,  Sandy Hinds ,  Douglas Holroyd ,  Ai Vey Ng ,  Diwaker Singh

发明人： D. Fischbuch ,  Robert Hagerty ,  Sandy Hinds ,  Douglas Holroyd ,  Ai Vey Ng ,  Diwaker Singh

IPC分类号： C08F2/00

CPC分类号： B01J8/1809 ,  B01J2208/00274 ,  B01J2219/00191 ,  C08F10/00 ,  C08F110/02 ,  C08F2400/02 ,  Y10S526/901 ,  C08F2/34 ,  C08F2/00

摘要： The present invention relates to a continuous gas phase process comprising passing a recycle stream through a fluidized bed in a gas phase fluidized bed reactor, wherein the recycle stream comprises a low molecular weight dew point increasing component and a high molecular weight component, polymerizing an alpha-olefin monomer in the presence of a catalyst, and controlling an amount of the low molecular weight dew point increasing component in the recycle stream such that a dew point approach temperature of the recycle stream is less than the dew point approach temperature when operating with the higher molecular weight dew point increasing component alone.

摘要翻译： 连续气相方法本发明涉及一种连续气相方法，包括使循环流通过气相流化床反应器中的流化床，其中再循环流包含低分子量露点增加组分和高分子量组分，聚合α 烯烃单体，并且控制再循环流中低分子量露点增加组分的量，使得当循环流中的露点接近温度小于露点接近温度时 较高分子量露点增加组分。

公开(公告)号：US20050182207A1

公开(公告)日：2005-08-18

申请号：US11021918

申请日：2004-12-22

申请人： Diwaker Singh ,  Sandy Hinds ,  Brett Fischbuch ,  Ng Ai Vey

发明人： Diwaker Singh ,  Sandy Hinds ,  Brett Fischbuch ,  Ng Ai Vey

IPC分类号： C08F2/00 ,  C08F10/02 ,  C08F210/16

CPC分类号： C08F10/02 ,  C08F210/16 ,  C08F2/34 ,  C08F210/14 ,  C08F2500/12

摘要： A continuous gas fluidized bed polymerization process for the production of a polymer from a monomer including continuously passing a gaseous stream comprising the monomer through a fluidized bed reactor in the presence of a catalyst under reactive conditions; withdrawing a polymeric product and a stream comprising unreacted monomer gases; cooling said stream comprising unreacted monomer gases to form a mixture comprising a gas phase and a liquid phase and reintroducing said mixture into said reactor with sufficient additional monomer to replace that monomer polymerized and withdrawn as the product, wherein said liquid phase is vaporized, and wherein the stream comprises at least two inert condensing agents selected from the group consisting of alkanes, cycloalkanes, and mixtures thereof, each of the inert condensing agents having a normal boiling point less than 40° C.

摘要翻译： 一种用于从单体制备聚合物的连续气流流化床聚合方法，包括在反应条件下，在催化剂存在下连续通过包含单体的气流通过流化床反应器; 取出聚合物和包含未反应的单体气体的物流; 冷却所述物流包含未反应的单体气体以形成包含气相和液相的混合物，并用足够的其它单体将所述混合物重新引入所述反应器，以代替作为产物聚合和取出的单体，其中所述液相被蒸发，其中 该流包含至少两种选自烷烃，环烷烃及其混合物的惰性缩合剂，每种惰性缩合剂的标准沸点低于40℃。