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    PROCESS FOR THE GAS-PHASE POLYMERIZATION OF OLEFINS
    2.
    发明申请
    PROCESS FOR THE GAS-PHASE POLYMERIZATION OF OLEFINS 审中-公开
    油相的气相聚合方法

    公开(公告)号：WO2014044544A1

    公开(公告)日：2014-03-27

    申请号：PCT/EP2013/068375

    申请日：2013-09-05

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： BALESTRA, Enrico ,  CAPUTO, Tiziana ,  DORINI, Maurizio ,  MAZZUCCO, Antonio ,  SOFFRITTI, Silvia

    IPC: C08F10/00 ,  C08F2/34 ,  C08F2/01 ,  B01J8/24

    CPC classification number: C08F10/06 ,  B01J8/24 ,  B01J8/26 ,  B01J8/388 ,  B01J19/24 ,  B01J2208/00274 ,  B01J2208/00283 ,  B01J2208/00734 ,  B01J2219/00164 ,  B01J2219/24 ,  C08F10/00 ,  C08F210/06 ,  C08F2/34 ,  C08F2/005 ,  C08F2/001 ,  C08F210/16 ,  C08F2500/12 ,  C08F2/01

    Abstract: A process and apparatus for producing olefin polymers are disclosed, comprising: a. polymerizing one or more olefins in the gas phase, in the presence of an olefin polymerization catalyst, whereby growing polymer particles flow along a cylindrically- shaped downward path in densified form under the action of gravity so as to form a densified bed of downward-flowing polymer particles b. allowing said polymer particles to flow through a restriction of the densified bed, such restriction being positioned in a restriction zone extending from the bed upward to a distance of 15% of the total height of the densified bed; and c. metering an antistatic agent through a feed line connected to the densified bed at a feed point being located in a feed zone extending from the top of the restriction upward, to a distance five times the diameter of the section of the densified bed above the restriction.

    Abstract translation: 公开了一种用于生产烯烃聚合物的方法和设备，包括：a。 在气相中在烯烃聚合催化剂存在下聚合一种或多种烯烃，由此生长的聚合物颗粒在致密化形式的重力作用下沿着圆柱形的向下路径流动，以形成向下流动的致密化床 聚合物颗粒b。 允许所述聚合物颗粒流过致密化床的限制，这种限制被定位在从床向上延伸到致密化床的总高度的15％的距离的限制区域中; 和c。 通过连接到致密化床的进料管，在位于从限制器顶部向上延伸的进料区中的进料点计量抗静电剂至限制物上方致密化床的部分直径的五倍。

    PROCESS FOR THE GAS-PHASE POLYMERIZATION OF OLEFINS
    3.
    发明申请
    PROCESS FOR THE GAS-PHASE POLYMERIZATION OF OLEFINS 审中-公开
    油相的气相聚合方法

    公开(公告)号：WO2009080660A1

    公开(公告)日：2009-07-02

    申请号：PCT/EP2008/067772

    申请日：2008-12-17

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L. ,  MAZZUCCO, Antonio ,  RINALDI, Riccardo ,  SOFFRITTI, Silvia ,  BALESTRA, Enrico ,  PENZO, Giuseppe ,  MEI, Gabriele

    Inventor： MAZZUCCO, Antonio ,  RINALDI, Riccardo ,  SOFFRITTI, Silvia ,  BALESTRA, Enrico ,  PENZO, Giuseppe ,  MEI, Gabriele

    IPC: B01J19/24 ,  C08F10/00

    CPC classification number: B01J19/2435 ,  B01J2219/00164 ,  B01J2219/00166 ,  B01J2219/00173 ,  C08F10/00 ,  C08F110/06 ,  C08F210/06 ,  C08F2/34 ,  C08F2/001 ,  C08F2500/05 ,  C08F210/16

    Abstract: A process for the gas-phase polymerization of α-olefms carried out in two interconnected polymerization zones, wherein the growing polymer particles flow through the first of said polymerization zones (riser) under fast fluidization conditions, leave said riser and enter the second of said polymerization zones (downcomer) through which they flow downward in a densified form, the process being characterized in that: (a) the gas mixture present in the riser is totally or partially prevented from entering the downcomer by introducing into the upper part of said downcomer a liquid stream LB having a composition different from the gaseous mixture present in the riser; (b) the ratio R between the flow rate F p of polymer circulated between said downcomer and said riser and the flow rate LB of said liquid being adjusted in a range from 10 to 50.

    Abstract translation: 一种用于在两个相互连接的聚合区中进行的α-烯烃的气相聚合的方法，其中生长的聚合物颗粒在快速流化条件下流过第一个所述聚合区（提升管），离开所述提升管并进入所述 聚合区（降液管），通过它们以致密化形式向下流动，该方法的特征在于：（a）通过引入所述降液管的上部，存在于提升管中的气体混合物被全部或部分地防止进入降液管 具有与提升管中存在的气体混合物不同的组成的液体流LB; （b）在所述降液管和所述提升管之间循环的聚合物的流量Fp与所述液体的流量LB之间的比R调节在10至50的范围内。

    PROCESS FOR THE GAS-PHASE POLYMERIZATION OF OLEFINS
    5.
    发明申请
    PROCESS FOR THE GAS-PHASE POLYMERIZATION OF OLEFINS 审中-公开
    油相的气相聚合方法

    公开(公告)号：WO2010026091A1

    公开(公告)日：2010-03-11

    申请号：PCT/EP2009/060997

    申请日：2009-08-26

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L. ,  MAZZUCCO, Antonio ,  SOFFRITTI, Silvia ,  CAPUTO, Tiziana ,  COLLINA, Gianni ,  RINALDI, Riccardo ,  PICA, Roberta

    Inventor： MAZZUCCO, Antonio ,  SOFFRITTI, Silvia ,  CAPUTO, Tiziana ,  COLLINA, Gianni ,  RINALDI, Riccardo ,  PICA, Roberta

    IPC: C08F10/00 ,  C08F4/64

    CPC classification number: C08F210/16 ,  C08F110/02 ,  C08F4/6543 ,  C08F2/34 ,  C08F2/001 ,  C08F2500/24

    Abstract: A process for the polymerisation of olefins in the presence of a solid catalyst component and a catalyst activator, the process being performed in a gas-phase reactor having interconnected polymerization zones, where the growing polymer particles flow upward through a first polymerization zone (riser) under fast fluidization conditions, leave said riser and enter a second polymerization zone (downcomer) through which they flow downward under the action of gravity, leave said downcomer and are reintroduced into the riser, thus establishing a polymer circulation between said riser and said downcomer, the process being characterized in that said solid catalyst component has an average size P50 ranging from 20 μm to 65 μm and the gas flows upward in said first polymerization zone at a velocity ranging from 0.8 to 2.0 m/s.

    Abstract translation: 一种在固体催化剂组分和催化剂活化剂存在下使烯烃聚合的方法，该方法在具有互连聚合区的气相反应器中进行，其中生长的聚合物颗粒向上流过第一聚合区（提升管） 在快速流化条件下，离开所述提升管并进入第二聚合区（降液管），通过它们在重力作用下向下流动，离开所述降液管并重新引入提升管，从而在所述提升管和所述降液管之间建立聚合物循环， 该方法的特征在于所述固体催化剂组分的平均尺寸P50为20μm至65μm，气体以0.8-2.0m / s的速度在所述第一聚合区域中向上流动。

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