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37 条记录 (耗时 0.023 秒)

    METHOD AND APPARATUS FOR DISCHARGING A POLYMER FROM A GAS-PHASE REACTOR
    31.
    发明申请
    METHOD AND APPARATUS FOR DISCHARGING A POLYMER FROM A GAS-PHASE REACTOR 有权
    从气相反应器中排出聚合物的方法和装置

    公开(公告)号：US20140114038A1

    公开(公告)日：2014-04-24

    申请号：US14125777

    申请日：2012-06-19

    申请人： Manfred Hecker ,  Paulus-Petrus Maria De Lange ,  Klaus Berhalter ,  Thomas Andreas Hora ,  Axel Hamann

    发明人： Manfred Hecker ,  Paulus-Petrus Maria De Lange ,  Klaus Berhalter ,  Thomas Andreas Hora ,  Axel Hamann

    IPC分类号： C08F2/34

    CPC分类号： C08F2/34 ,  B01J8/003 ,  B01J8/008 ,  B01J8/24 ,  B01J2208/00274 ,  B01J2208/00761 ,  B01J2208/00991 ,  C08F10/00 ,  Y10S526/92 ,  C08F2/01

    摘要： Process for discharging polyolefin particles from a gas-phase polymerization reactor of a pressure from 1.0 MPa to 10 MPa to a discharge vessel of a pressure from 0.1 MPa to 1.0 MPa wherein the discharging is carried out discontinuously through at least two discharge lines in which the polyolefin particles are transported horizontally or upwards, process for polymerizing olefins at temperatures of from 30° C. to 160° C. and pressures of from 1.0 MPa to 10 MPa in the presence of a polymerization catalyst in a gas-phase polymerization reactor comprising discharging the obtained polyolefin particles from the gas-phase polymerization reactor by the process for discharging polyolefin particles and apparatus for polymerizing olefins in the gas-phase comprising a polymerization reactor, a discharge vessel and at least two pipes connecting the polymerization reactor and the discharge vessel for discharging polyolefin particles, wherein the discharge lines are constructed in a way that the polyolefin particles conveyed from the polymerization reactor to the discharge vessel are transported horizontally or upwards.

    摘要翻译： 从压力为1.0MPa至10MPa的气相聚合反应器中将聚烯烃颗粒排放至压力为0.1MPa至1.0MPa的放电容器的方法，其中通过至少两个排放管线不连续地进行排放，其中， 聚烯烃颗粒水平或向上输送，在气相聚合反应器中在聚合催化剂存在下，在30℃至160℃的温度和1.0MPa至10MPa的压力下聚合烯烃的方法，包括排出 通过排出聚烯烃颗粒的方法从气相聚合反应器获得的聚烯烃颗粒和在气相中聚合烯烃的装置包括聚合反应器，放电容器和连接聚合反应器和放电容器的至少两个管， 排出聚烯烃颗粒，其中排出管线以这样的方式构造 从聚合反应器输送到放电容器的裂解烯烃颗粒被水平或向上输送。

    Method for activation of chromium containing catalyst precursor for polymerization and the resulting polymerization catalyst
    32.
    发明授权
    Method for activation of chromium containing catalyst precursor for polymerization and the resulting polymerization catalyst 有权

    公开(公告)号：US10253113B2

    公开(公告)日：2019-04-09

    申请号：US13990618

    申请日：2011-11-29

    申请人： Paulus De Lange ,  Manfred Hecker

    发明人： Paulus De Lange ,  Manfred Hecker

    IPC分类号： C08F4/24 ,  B01J8/18 ,  B01J8/22 ,  B01J23/26 ,  B01J38/32 ,  C08F10/00

    摘要： Method for activation of chromium containing catalyst precursor for polymerization and improved polymerization catalyst resulting The instant invention relates to an activation of a polymerization catalyst precursor by heat treatment comprising a support material and a catalyst precursor deposited thereon in a fluidized bed activator and to the use of the activated polymerization catalyst in the manufacture of polyolefins. The Method is performed in a cylindrical activator (1) arranged vertically comprising tubular activator walls, a fluidization gas inlet (2) near the bottom, a fluidization gas outlet (3) near the top and a heat exchange jacket (4) outside the tubular activator walls, wherein the heating jacket covers the complete outer surface of the walls of the activator. The catalyst prepared by that method is improved with respect to its minor content of impurities and causes less interruptions during gas-phase polymerization or slurry polymerization either in stirred vessel or loop.

    Method for isolating olefins from polyolefin plants
    35.
    发明授权
    Method for isolating olefins from polyolefin plants 有权
    从聚烯烃工厂中分离烯烃的方法

    公开(公告)号：US06462150B1

    公开(公告)日：2002-10-08

    申请号：US09913074

    申请日：2001-08-09

    申请人： Stefan Bitterlich ,  Kaspar Evertz ,  Manfred Hecker ,  Hans-Jacob Feindt

    发明人： Stefan Bitterlich ,  Kaspar Evertz ,  Manfred Hecker ,  Hans-Jacob Feindt

    IPC分类号： C08F234

    CPC分类号： C08F6/001 ,  B01J8/007 ,  B01J8/24 ,  C07C7/005 ,  C07C11/02

    摘要： The present invention relates to a method for the isolation of olefins from a gas mixture comprising one or more olefins, inert gas and catalyst poison, where the gas mixture is fed to a separation unit (18) and separated into olefin and inert gas. The method according to the invention has the special feature that an apparatus (17) is installed upstream or downstream of the separation unit (18) and that i) in the case of an upstream apparatus (17), the catalyst poison is at least partially removed from the gas mixture, and ii) in the case of a downstream apparatus (17), the catalyst poison is at least partially removed from the separated-off olefin. The olefins here are preferably isolated from a gas mixture formed as offgas in catalytic gas-phase polymerization for the preparation of polyolefins. The recovery of the olefins from the offgas is of economic importance.

    摘要翻译： 本发明涉及从包含一种或多种烯烃，惰性气体和催化剂毒物的气体混合物中分离烯烃的方法，其中气体混合物被供给到分离单元（18）并分离成烯烃和惰性气体。 根据本发明的方法具有以下特征：设备（17）安装在分离单元（18）的上游或下游，并且在上游设备（17）的情况下，催化剂毒物至少部分地被去除 在下游装置（17）的情况下，催化剂毒物至少部分地从分离的烯烃中除去。这里的烯烃优选与催化气体 - 气体中的废气形成的气体混合物分离， 用于制备聚烯烃的相聚合。 从废气中回收烯烃是经济重要的。

    METHOD FOR ACTIVATION OF CHROMIUM CONTAINING CATALYST PRECURSOR FOR POLYMERIZATION AND THE RESULTING POLYMERIZATION CATALYST
    37.
    发明申请
    METHOD FOR ACTIVATION OF CHROMIUM CONTAINING CATALYST PRECURSOR FOR POLYMERIZATION AND THE RESULTING POLYMERIZATION CATALYST 审中-公开
    用于活化含有催化剂前体用于聚合和结晶聚合催化剂的铬的方法

    公开(公告)号：US20130245209A1

    公开(公告)日：2013-09-19

    申请号：US13990618

    申请日：2011-11-29

    申请人： Paulus De Lange ,  Manfred Hecker

    发明人： Paulus De Lange ,  Manfred Hecker

    IPC分类号： C08F4/24

    CPC分类号： C08F4/24 ,  B01J8/1836 ,  B01J8/22 ,  B01J23/26 ,  B01J38/32 ,  B01J2208/00212 ,  C08F10/00 ,  Y02P20/584

    摘要： Method for activation of chromium containing catalyst precursor for polymerization and improved polymerization catalyst resulting The instant invention relates to an activation of a polymerization catalyst precursor by heat treatment comprising a support material and a catalyst precursor deposited thereon in a fluidized bed activator and to the use of the activated polymerization catalyst in the manufacture of polyolefins. The Method is performed in a cylindrical activator (1) arranged vertically comprising tubular activator walls, a fluidization gas inlet (2) near the bottom, a fluidization gas outlet (3) near the top and a heat exchange jacket (4) outside the tubular activator walls, wherein the heating jacket covers the complete outer surface of the walls of the activator. The catalyst prepared by that method is improved with respect to its minor content of impurities and causes less interruptions during gas-phase polymerization or slurry polymerization either in stirred vessel or loop.

    摘要翻译： 活化用于聚合的含铬催化剂前体和改进的聚合催化剂的方法本发明涉及通过热处理活化聚合催化剂前体，其包括在流化床活化剂中沉积在其上的载体材料和催化剂前体，以及使用 活性聚合催化​​剂在制备聚烯烃时。 该方法在垂直布置的柱状活化剂（1）中进行，该活化剂垂直地包括管状活化剂壁，靠近底部的流化气体入口（2），顶部附近的流化气体出口（3）和管状外部的热交换夹套 活化剂壁，其中加热套覆盖活化剂壁的整个外表面。 通过该方法制备的催化剂相对于其少量杂质而改进，并且在搅拌容器或环路中的气相聚合或淤浆聚合期间引起较少的中断。