METHODS AND SYSTEMS FOR CATALYST DELIVERY
    1.
    发明申请
    METHODS AND SYSTEMS FOR CATALYST DELIVERY 审中-公开
    催化传递的方法和系统

    公开(公告)号:WO2013081748A1

    公开(公告)日:2013-06-06

    申请号:PCT/US2012/061881

    申请日:2012-10-25

    Abstract: A method for the delivery of a catalyst to a polymerization reactor is disclosed, comprising: contacting a catalyst with a carrier fluid comprising an inert hydrocarbon in gaseous form, the inert hydrocarbon having a normal boiling point of about -1°C to about 81°C; and flowing the carrier fluid to the polymerization reactor such that the carrier fluid transports the catalyst to the polymerization reactor. A catalyst delivery system is disclosed, comprising: a catalyst vessel for containing a catalyst; a catalyst injection line for delivering the catalyst to a polymerization reactor, the catalyst injection line being in fluid communication with the catalyst vessel and the polymerization reactor; and a carrier fluid line in fluid communication with the catalyst injection line for delivering a carrier fluid comprising an inert hydrocarbon to the catalyst injection line, the inert hydrocarbon having a normal boiling point of about -1°C to about 81°C.

    Abstract translation: 公开了一种将催化剂递送到聚合反应器的方法,包括:使催化剂与包含气态惰性烃的载体流体接触,惰性烃的标准沸点为约-1℃至约81℃ C; 并将载体流体流动到聚合反应器,使得载体流体将催化剂输送到聚合反应器。 公开了一种催化剂输送系统,包括:用于容纳催化剂的催化剂容器; 用于将催化剂输送到聚合反应器的催化剂注入管线,催化剂注入管线与催化剂容器和聚合反应器流体连通; 以及与所述催化剂注入管线流体连通以将包含惰性烃的载体流体输送到所述催化剂注入管线的载体流体管线,所述惰性烃的正常沸点为约-1℃至约81℃。

    METALLOCENE CATALYSTS AND THEIR USE IN POLYMERIZATION PROCESSES
    3.
    发明申请
    METALLOCENE CATALYSTS AND THEIR USE IN POLYMERIZATION PROCESSES 审中-公开
    金属催化剂及其在聚合工艺中的应用

    公开(公告)号:WO2009054889A2

    公开(公告)日:2009-04-30

    申请号:PCT/US2008/011607

    申请日:2008-10-09

    Abstract: A process for polymerizing olefin(s) utilizing a cyclic bridged metallocene catalyst system to produce polymers with improved properties is provided. The catalyst system may include a cyclic bridged metallocene, LA(R'SiR')L B ZrQ 2 , activated by an activator, the activator comprising aluminoxane, a modified aluminoxane, or a mixture thereof, and supported by a support, where: L A and L B are independently an unsubstituted or a substituted cyclopentadienyl ligand bonded to Zr and defined by the formula (C 5 H 4 - d R d ), where R is hydrogen, a hydrocarbyl substituent, a substituted hydrocarbyl substituent, or a heteroatom substituent, and where d is O, 1, 2, 3 or 4; L A and L B are connected to one another with a cyclic silicon bridge, R' SiR', where R' are independently hydrocarbyl or substituted hydrocarbyl substituents that are connected with each other to form a silacycle ring; and each Q is a labile hydrocarbyl or a substituted hydrocarbyl ligand.

    Abstract translation: 提供了利用环状桥连金属茂催化剂体系聚合烯烃以制备具有改进性能的聚合物的方法。 催化剂体系可以包括由活化剂活化的环状桥连金属茂LA(R'SiR')LBZrQ2,活化剂包括铝氧烷,改性铝氧烷或其混合物,并由载体支持,其中:LA和LB是 独立地是未取代的或取代的环戊二烯基配体,其与Zr键合并由式(C5H4-dRd)定义,其中R是氢,烃基取代基,取代的烃基取代基或杂原子取代基,其中d是O,1,2 ,3或4; LA和LB通过环硅桥R'SiR'彼此连接,其中R'独立地是彼此连接以形成硅环的烃基或取代的烃基取代基; 并且每个Q是不稳定的烃基或取代的烃基配体。

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