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    Gas-phase olefin polymerization process
    3.
    发明授权
    Gas-phase olefin polymerization process 有权
    气相烯烃聚合工艺

    公开(公告)号：US07482411B2

    公开(公告)日：2009-01-27

    申请号：US10553476

    申请日：2004-04-01

    申请人： Guiseppe Penzo ,  Gabriele Mei ,  Gerben Meier

    发明人： Guiseppe Penzo ,  Gabriele Mei ,  Gerben Meier

    IPC分类号： C08F2/34 ,  B01J19/24

    CPC分类号： B01J8/1827 ,  B01J8/1872 ,  B01J2208/00256 ,  B01J2208/00274 ,  B01J2208/003 ,  C08F10/00 ,  Y10S526/901 ,  Y10S526/918 ,  C08F2/01 ,  C08F2/34

    摘要： A continuous process for the olefin polymerization in a fluidized bed reactor, said process comprising continuously passing a gaseous stream comprising one or more α-olefin monomers through the fluidized bed in the presence of a polymerization catalyst under reactive conditions, withdrawing polymeric product and unreacted fluids from the reactor, cooling part of said unreacted fluids below the dew point to form a two-phase mixture of gas and condensed liquid and reintroducing said two-phase mixture into the reactor, the process being characterized in that said two-phase mixture is reintroduced under the distribution plate of the reactor so that a part of condensed liquid is separated from the gas and is successively fed above the fluidized bed through an external pipe connecting the bottom of the reactor to a point situated above the upper limit of the fluidized bed of polymer particles.

    摘要翻译： 在流化床反应器中烯烃聚合的连续方法，所述方法包括在反应条件下，在聚合催化剂存在下连续地通过包含一种或多种α-烯烃单体的气流通过流化床，将聚合物和未反应的流体 将来自反应器的所述未反应流体的一部分冷却至低于露点以形成气体和冷凝液体的两相混合物，并将所述两相混合物重新引入反应器，其特征在于所述两相混合物被重新引入 在反应器的分配板下方，使得一部分冷凝液体与气体分离，并且通过将反应器底部连接到位于流化床上限以上的点的外部管连续地供入流化床上方 聚合物颗粒。

    Polymerization process
    4.
    发明申请
    Polymerization process 有权
    聚合过程

    公开(公告)号：US20060058474A1

    公开(公告)日：2006-03-16

    申请号：US10530597

    申请日：2003-09-25

    申请人： Massimo Covezzi ,  Gerben Meier ,  Gabriele Mei

    发明人： Massimo Covezzi ,  Gerben Meier ,  Gabriele Mei

    IPC分类号： C08F2/00

    CPC分类号： B01J8/388 ,  B01J8/1827 ,  B01J8/1872 ,  B01J2208/00176 ,  B01J2208/00212 ,  B01J2208/00256 ,  B01J2208/00274 ,  C08F10/00 ,  C08F110/02 ,  C08F110/06 ,  C08F210/06 ,  C08F210/16 ,  C08F210/18 ,  Y10S526/901 ,  Y10S526/918 ,  C08F2/34 ,  C08F2/01 ,  C08F2/001 ,  C08F2500/07 ,  C08F2500/15 ,  C08F210/08 ,  C08F2500/08 ,  C08F236/00 ,  C08F2500/21

    摘要： Process for the gas-phase catalytic polymerization of olefins carried out in a plurality of interconnected polymerization zones, the process comprising feeding one or more monomers to said polymerization zones in the presence of a catalyst under reaction conditions and collecting the polymer product from said polymerization zones, in which process the polymer particles grow within a first polymerization zone where a fluidized bed is formed, at least a part of said polymer particles leave said first polymerization zone to enter a second polymerization zone through which they flow downward, leave said second polymerization zone and enter a third polymerization zone through which they flow upward under fast fluidization or transport conditions, leave said third polymerization zone and are reintroduced into the first polymerization zone, thus establishing a circulation of polymer between the different polymerization zones.

    摘要翻译： 在多个相互连接的聚合区域中进行的烯烃的气相催化聚合的方法，该方法包括在反应条件下在催化剂存在下将一种或多种单体进料到所述聚合区域，并从所述聚合区域收集聚合物产物 在该方法中，聚合物颗粒在形成流化床的第一聚合区内生长，所述聚合物颗粒的至少一部分离开所述第一聚合区进入第二聚合区，通过它们向下流动，离开所述第二聚合区 并进入第三聚合区，通过它们在快速流化或运输条件下向上流动，离开所述第三聚合区并重新引入第一聚合区，从而在不同聚合区之间建立聚合物的循环。

    Process for the gas-phase polymerization olefins
    5.
    发明授权
    Process for the gas-phase polymerization olefins 有权
    气相聚合烯烃的方法

    公开(公告)号：US07652108B2

    公开(公告)日：2010-01-26

    申请号：US11665210

    申请日：2005-09-19

    申请人： Gabriele Mei ,  Massimo Covezzi ,  Stefano Bertolini

    发明人： Gabriele Mei ,  Massimo Covezzi ,  Stefano Bertolini

    IPC分类号： C08F2/34 ,  C08F10/02

    CPC分类号： C08F10/00 ,  C08F110/06 ,  C08F210/06 ,  Y10S526/904 ,  Y10S526/919 ,  C08F2/01 ,  C08F4/651 ,  C08F4/6492 ,  C08F2/001 ,  C08F2/34 ,  C08F2500/24 ,  C08F210/16

    摘要： Process for the gas-phase polymerization of one or more alpha-olefins in the presence of a catalyst system, the process comprising: contacting in a continuous way one or more of said alpha-olefins with said catalyst system in a prepolymerization reactor, wherein the reaction is carried out in a liquid medium at a temperature ranging from 23° to 50° C.; feeding in continuous the prepolymer obtained in step a) into a gas-phase reactor having interconnected polymerization zones, where the growing polymer particles flow upward through a first polymerization zone (riser) under fast fluidization or transport 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 said riser; wherein the prepolymer obtained from step a) is continuously fed at a section of said riser characterized by an upwardly gas velocity higher than 3.0 m/s.

    摘要翻译： 一种或多种α-烯烃在催化剂体系存在下进行气相聚合的方法，该方法包括：在预聚合反应器中以连续的方式使一种或多种所述α-烯烃与所述催化剂体系接触，其中， 反应在液体介质中在23℃至50℃的温度下进行; 在步骤a）中获得的预聚物连续进料到具有互连聚合区的气相反应器中，其中生长的聚合物颗粒在快速流化或运输条件下通过第一聚合区（提升管）向上流动，离开所述提升管并进入第二个 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所述提升管中; 其中从步骤a）获得的预聚物在所述提升管的部分连续进料，其特征在于高于3.0m / s的向上气体速度。

    Method for Controlling the Polymer Flow in a Polymerization Process
    6.
    发明申请
    Method for Controlling the Polymer Flow in a Polymerization Process 有权
    控制聚合过程聚合物流动的方法

    公开(公告)号：US20080058484A1

    公开(公告)日：2008-03-06

    申请号：US10589591

    申请日：2005-01-31

    申请人： Gabriele Mei ,  Stefano Bertolini

    发明人： Gabriele Mei ,  Stefano Bertolini

    IPC分类号： C08F2/00 ,  B01J8/20 ,  C08F2/34 ,  C08F10/00

    CPC分类号： C08F10/00 ,  B01J8/228 ,  B01J2208/00548 ,  B01J2208/00584 ,  B01J2208/0069 ,  C08F110/06 ,  C08F210/06 ,  Y10S526/901 ,  Y10S526/905 ,  C08F2/34 ,  C08F210/16

    摘要： A method for controlling the flowability of polymer particles flowing downward in a densified form inside a polymerization reactor, in which one or more monomers are gas-phase polymerized in the presence of a polymerization catalyst, the density of solid (Kg of polymer per m3 of reactor occupied by the polymer) being higher than 80% of the “poured bulk density” of the polymer, the method being characterized in that a liquid stream is continuously fed into the polymerization reactor at a mass flow rate per unity of reactor surface higher than 30 Kg/h m2.

    摘要翻译： 一种控制聚合反应器内以致密化形式向下流动的聚合物颗粒的流动性的方法，其中一种或多种单体在聚合催化剂存在下进行气相聚合，固体密度（Kg / 由聚合物占据的反应器的3重量％）高于聚合物的“倾倒堆积密度”的80％，该方法的特征在于将液体流以质量流量连续地供入聚合反应器 反应器表面的单位速率高于30Kg / hm 2。

    Gas-phase catalytic polymerization of olefins
    8.
    发明授权
    Gas-phase catalytic polymerization of olefins 有权
    烯烃的气相催化聚合

    公开(公告)号：US07414098B2

    公开(公告)日：2008-08-19

    申请号：US10530597

    申请日：2003-09-25

    申请人： Massimo Covezzi ,  Gerben Meier ,  Gabriele Mei

    发明人： Massimo Covezzi ,  Gerben Meier ,  Gabriele Mei

    IPC分类号： C08F2/34 ,  B01J19/24 ,  C08F10/02

    CPC分类号： B01J8/388 ,  B01J8/1827 ,  B01J8/1872 ,  B01J2208/00176 ,  B01J2208/00212 ,  B01J2208/00256 ,  B01J2208/00274 ,  C08F10/00 ,  C08F110/02 ,  C08F110/06 ,  C08F210/06 ,  C08F210/16 ,  C08F210/18 ,  Y10S526/901 ,  Y10S526/918 ,  C08F2/34 ,  C08F2/01 ,  C08F2/001 ,  C08F2500/07 ,  C08F2500/15 ,  C08F210/08 ,  C08F2500/08 ,  C08F236/00 ,  C08F2500/21

    摘要： Process for the gas-phase catalytic polymerization of olefins carried out in a plurality of interconnected polymerization zones, the process comprising feeding one or more monomers to said polymerization zones in the presence of a catalyst under reaction conditions and collecting the polymer product from said polymerization zones, in which process the polymer particles grow within a first polymerization zone where a fluidized bed is formed, at least a part of said polymer particles leave said first polymerization zone to enter a second polymerization zone through which they flow downward, leave said second polymerization zone and enter a third polymerization zone through which they flow upward under fast fluidization or transport conditions, leave said third polymerization zone and are reintroduced into the first polymerization zone, thus establishing a circulation of polymer between the different polymerization zones.

    摘要翻译： 在多个相互连接的聚合区域中进行的烯烃的气相催化聚合的方法，该方法包括在反应条件下在催化剂存在下将一种或多种单体进料到所述聚合区域，并从所述聚合区域收集聚合物产物 在该方法中，聚合物颗粒在形成流化床的第一聚合区内生长，所述聚合物颗粒的至少一部分离开所述第一聚合区进入第二聚合区，通过它们向下流动，离开所述第二聚合区 并进入第三聚合区，通过它们在快速流化或运输条件下向上流动，离开所述第三聚合区并重新引入第一聚合区，从而在不同聚合区之间建立聚合物的循环。

    Process and apparatus for the polymerization of ethylene
    9.
    发明申请
    Process and apparatus for the polymerization of ethylene 有权
    用于乙烯聚合的方法和装置

    公开(公告)号：US20070093621A1

    公开(公告)日：2007-04-26

    申请号：US10568739

    申请日：2004-07-19

    申请人： Gerben Meier ,  Massimo Covezzi ,  Pietro Baita ,  Gabriele Mei

    发明人： Gerben Meier ,  Massimo Covezzi ,  Pietro Baita ,  Gabriele Mei

    IPC分类号： C08G85/00

    CPC分类号： B01J8/0055 ,  B01J8/1854 ,  B01J8/24 ,  B01J19/2435 ,  B01J2208/00619 ,  B01J2219/00006 ,  B01J2219/0004 ,  B01J2219/00184 ,  C08F210/16 ,  C08L23/06 ,  C08L23/0815 ,  C08L2205/02 ,  Y10S526/905 ,  C08F2/34 ,  C08F2/001 ,  C08L2666/06 ,  C08F210/14 ,  C08F2500/04 ,  C08F2500/07 ,  C08F2500/12 ,  C08F2500/17 ,  C08F210/08

    摘要： Process for preparing a broad molecular weight polyethylene by polymerizing ethylene in the presence of a polymerization catalyst, the process comprising the following steps, in any mutual order: a) polymerizing ethylene, optionally together with one or more α-olefinic comonomers having from 3 to 12 carbon atoms, in a gas-phase reactor in the presence of hydrogen, b) copolymerizing ethylene with one or more α-olefinic comonomers having from 3 to 12 carbon atoms in another gas-phase reactor in the presence of an amount of hydrogen less than step a), where in at least one of said gas-phase reactors the growing polymer particles flow upward through a first polymerization zone under fast fluidization or transport conditions, leave said first polymerization zone and enter a second polymerization zone through which they flow downward under the action of gravity.

    摘要翻译： 通过在聚合催化剂存在下聚合乙烯来制备宽分子量聚乙烯的方法，该方法包括以下步骤：a）聚合乙烯，任选地与一种或多种α-烯烃共聚单体一起聚合，所述α-烯烃共聚单体具有3〜 12个碳原子，在氢气存在下的气相反应器中，b）在另一种气相反应器中在一定量的氢气存在下使乙烯与一种或多种具有3至12个碳原子的α-烯烃共聚单体共聚 其中在至少一个所述气相反应器中，生长的聚合物颗粒在快速流化或运输条件下通过第一聚合区向上流动，留下所述第一聚合区并进入第二聚合区，通过它们向下流动 在重力的作用下。

    Process for the Gas-Phase Polymerization Olefins
    10.
    发明申请
    Process for the Gas-Phase Polymerization Olefins 有权
    气相聚合烯烃方法

    公开(公告)号：US20080312388A1

    公开(公告)日：2008-12-18

    申请号：US11665210

    申请日：2005-09-19

    申请人： Gabriele Mei ,  Massimo Covezzi ,  Stefano Bertolini

    发明人： Gabriele Mei ,  Massimo Covezzi ,  Stefano Bertolini

    IPC分类号： C08F2/01 ,  C08F2/34

    CPC分类号： C08F10/00 ,  C08F110/06 ,  C08F210/06 ,  Y10S526/904 ,  Y10S526/919 ,  C08F2/01 ,  C08F4/651 ,  C08F4/6492 ,  C08F2/001 ,  C08F2/34 ,  C08F2500/24 ,  C08F210/16

    摘要： Process for the gas-phase polymerization of one or more alpha-olefins in the presence of a catalyst system, the process comprising: contacting in a continuous way one or more of said alpha-olefins with said catalyst system in a prepolymerization reactor, wherein the reaction is carried out in a liquid medium at a temperature ranging from 23° to 50° C.; feeding in continuous the prepolymer obtained in step a) into a gas-phase reactor having interconnected polymerization zones, where the growing polymer particles flow upward through a first polymerization zone (riser) under fast fluidization or transport 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 said riser; wherein the prepolymer obtained from step a) is continuously fed at a section of said riser characterized by an upwardly gas velocity higher than 3.0 m/s.

    摘要翻译： 一种或多种α-烯烃在催化剂体系存在下进行气相聚合的方法，该方法包括：在预聚合反应器中以连续的方式使一种或多种所述α-烯烃与所述催化剂体系接触，其中， 反应在液体介质中在23℃至50℃的温度下进行; 在步骤a）中获得的预聚物连续进料到具有互连聚合区的气相反应器中，其中生长的聚合物颗粒在快速流化或运输条件下通过第一聚合区（提升管）向上流动，离开所述提升管并进入第二个 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所述提升管中; 其中从步骤a）获得的预聚物在所述提升管的部分连续进料，其特征在于高于3.0m / s的向上气体速度。