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    PROCESS FOR THE GAS-PHASE POLYMERIZATION OF OLEFINS
    1.
    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
    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：WO2011160961A1

    公开(公告)日：2011-12-29

    申请号：PCT/EP2011/059625

    申请日：2011-06-09

    Applicant: BASELL POLIOLEFINE ITALIA SRL ,  BALESTRA, Enrico ,  CAPUTO, Tiziana ,  MAZZUCCO, Antonio ,  RINALDI, Riccardo ,  SOFFRITTI, Silvia

    Inventor： BALESTRA, Enrico ,  CAPUTO, Tiziana ,  MAZZUCCO, Antonio ,  RINALDI, Riccardo ,  SOFFRITTI, Silvia

    IPC: C08F210/06 ,  C08F2/34 ,  C08F2/00

    CPC classification number: C08F2/01 ,  C08F210/06 ,  C08F2/001 ,  C08F2/34 ,  C08F210/14 ,  C08F210/16

    Abstract: A process for the gas-phase copolymerization of: (a)propylene, (b) at least one C 4 -C 8 α-olefin, and (c) optionally ethylene, the process being carried out in a reactor having 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, leave said downcomer and are reintroduced into said riser, thus establishing a circulation of polymer between the riser and the downcomer, the gas mixture present in the riser being at least partially prevented from entering the downcomer by introducing into the upper part of said downcomer a liquid barrier having a composition different from the gaseous mixture present in the riser and comprising at least one C 4 -C 8 α-olefin in a total amount of from 0.1% to 35% by mol.

    Abstract translation: 一种气相共聚合方法：（a）丙烯，（b）至少一种C 4 -C 8α-烯烃和（c）任选的乙烯，该方法在具有两个互连聚合区的反应器中进行，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第二个所述聚合区（降液管），通过它们以致密形式向下流动，离开所述降液管并重新引入 由此，在立管和降液管之间形成聚合物的循环，存在于提升管中的气体混合物至少部分地被阻止通过将所述降液管的上部引入到具有不同于 气体混合物存在于提升管中并且包含总量为0.1％至35％摩尔的至少一种C 4 -C 8α-烯烃。

    PROCESS FOR THE GAS-PHASE POLYMERIZATION OF OLEFINS
    4.
    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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