Process for preparing polyolefins in suspension
    1.
    发明授权
    Process for preparing polyolefins in suspension 有权
    悬浮液中制备聚烯烃的方法

    公开(公告)号:US08148588B2

    公开(公告)日:2012-04-03

    申请号:US10589048

    申请日:2005-01-25

    IPC分类号: C08F10/00 C08L23/08 C08L23/14

    摘要: The invention relates to a continuous process for preparing polyolefins having a bimodal or multimodal molar mass distribution in suspension in at least two reactors R1, R2.x, R3.y which are connected in series and in which different reaction conditions are set. In this process, the offgases A1, A2.x, A3.y, A4 and A5 leaving all the reactors connected in series are firstly collected, the collected offgases are then compressed in a compression stage 10, the compressed offgases are subsequently cooled and the cooled material is separated into a gaseous fraction and a liquid fraction. The separated fractions are then recirculated to the polymerization process at different points. The process of the invention allows the total conversion of the polymerization, based on monomer and comonomer used, to be increased to a surprising extent.

    摘要翻译: 本发明涉及一种用于制备在至少两个串联连接并且设定不同反应条件的反应器R1,R2.x,R3.y中的悬浮液中具有双峰或多峰摩尔质量分布的聚烯烃的连续方法。 在该过程中,首先收集离开所有串联的反应器的废气A1,A2.x,A3.y,A4和A5,然后将收集的废气在压缩级10中压缩,然后将压缩的废气冷却, 冷却的材料被分离成气体馏分和液体馏分。 然后将分离的级分在不同的点再循环到聚合过程中。 本发明的方法允许基于使用的单体和共聚单体的聚合的总转化率增加到惊人的程度。

    Gaseous phase fluidized-bed reactor
    2.
    发明授权
    Gaseous phase fluidized-bed reactor 失效
    气相流化床反应器

    公开(公告)号:US07601303B1

    公开(公告)日:2009-10-13

    申请号:US09700367

    申请日:1999-05-04

    IPC分类号: B01J8/18

    摘要: Gas-phase fluidized-bed reactor for polymerizing ethylenically unsaturated monomers, comprising a reactor chamber (1) in the form of a vertical tube, if desired a calming zone (2) following the upper section of the reactor chamber, a circulation gas line (3), a circulation gas compressor (4) and a cooling device (5), where, in the region of transition of the reaction gas from the circulation gas line into the reactor chamber and in the lower section of the reactor chamber itself, there is either no gas distributor plate at all or only a gas distributor plate the total surface area of whose gas orifices is more than 20% of the total surface area of said gas distributor plate.

    摘要翻译: 用于聚合烯键式不饱和单体的气相流化床反应器,包括垂直管形式的反应器室(1),如果需要,在反应器室的上部之后的平静区域(2),循环气体管线 3),循环气体压缩机(4)和冷却装置(5),其中在反应气体从循环气体管线进入反应器室和反应器室本身的下部的过渡区域 完全不是气体分配器板,或者只有气体分配器板,其气体孔的总表面积大于所述气体分布板的总表面积的20%。

    Gaseous phase fluidized-bed reactor
    3.
    发明授权
    Gaseous phase fluidized-bed reactor 失效
    气相流化床反应器

    公开(公告)号:US08034884B2

    公开(公告)日:2011-10-11

    申请号:US12554964

    申请日:2009-09-07

    IPC分类号: C08F2/00 B01J8/18

    摘要: Gas-phase fluidized-bed reactor for polymerizing ethylenically unsaturated monomers, comprising a reactor chamber (1) in the form of a vertical tube, if desired a calming zone (2) following the upper section of the reactor chamber, a circulation gas line (3), a circulation gas compressor (4) and a cooling device (5), where, in the region of transition of the reaction gas from the circulation gas line into the reactor chamber and in the lower section of the reactor chamber itself, there is either no gas distributor plate at all or only a gas distributor plate the total surface area of whose gas orifices is more than 20% of the total surface area of said gas distributor plate.

    摘要翻译: 用于聚合烯键式不饱和单体的气相流化床反应器,包括垂直管形式的反应器室(1),如果需要,在反应器室的上部之后的平静区域(2),循环气体管线 3),循环气体压缩机(4)和冷却装置(5),其中在反应气体从循环气体管线进入反应器室和反应器室本身的下部的过渡区域 完全不是气体分配器板,或者只有气体分配器板,其气体孔的总表面积大于所述气体分布板的总表面积的20%。

    GASEOUS PHASE FLUIDIZED-BED REACTOR
    4.
    发明申请
    GASEOUS PHASE FLUIDIZED-BED REACTOR 失效
    气相流化床反应器

    公开(公告)号:US20100056734A1

    公开(公告)日:2010-03-04

    申请号:US12554964

    申请日:2009-09-07

    IPC分类号: C08F2/01

    摘要: Gas-phase fluidized-bed reactor for polymerizing ethylenically unsaturated monomers, comprising a reactor chamber (1) in the form of a vertical tube, if desired a calming zone (2) following the upper section of the reactor chamber, a circulation gas line (3), a circulation gas compressor (4) and a cooling device (5), where, in the region of transition of the reaction gas from the circulation gas line into the reactor chamber and in the lower section of the reactor chamber itself, there is either no gas distributor plate at all or only a gas distributor plate the total surface area of whose gas orifices is more than 20% of the total surface area of said gas distributor plate.

    摘要翻译: 用于聚合烯键式不饱和单体的气相流化床反应器,包括垂直管形式的反应器室(1),如果需要,在反应器室的上部之后的平静区域(2),循环气体管线 3),循环气体压缩机(4)和冷却装置(5),其中在反应气体从循环气体管线进入反应器室和反应器室本身的下部的过渡区域 完全不是气体分配器板,或者只有气体分配器板,其气体孔的总表面积大于所述气体分布板的总表面积的20%。

    Discontinuous metering of catalysts and process auxilliaries into a gas-phase fluidized-bed reactor
    5.
    发明授权
    Discontinuous metering of catalysts and process auxilliaries into a gas-phase fluidized-bed reactor 失效
    催化剂和工艺助剂不连续计量进入气相流化床反应器

    公开(公告)号:US07534341B2

    公开(公告)日:2009-05-19

    申请号:US10552853

    申请日:2004-04-15

    IPC分类号: C10G35/00 C10G35/10

    摘要: Method of metering at least one solid, particulate catalyst into a reactor containing a fluidized bed (11) of particles in an at least partly gaseous medium, in which the catalyst is metered discontinuously at prescribed time intervals into the fluidized bed (11) at at least one metering point (10). According to the present invention, a fluid stream is firstly introduced into the reactor (5) so that a region having a reduced particle density is formed in the fluidized bed (11) around the metering point (10) and the catalyst is subsequently metered into this region. As a result of the prior introduction of a fluid stream (“preblowing”) before the actual introduction of the catalyst, the catalyst can penetrate significantly deeper into the fluidized bed from the metering point due to the reduced particle density and is dispersed better.

    摘要翻译: 将至少一种固体颗粒催化剂计量到含有至少部分气体介质中的颗粒流化床(11)的反应器的方法,其中催化剂以规定的时间间隔不连续地计量加入流化床(11)中 至少一个计量点(10)。 根据本发明,首先将流体流引入反应器(5),使得在流化床(11)周围形成具有减小的颗粒密度的区域,并将催化剂随后计量加入 这个地区。 由于在实际引入催化剂之前先前引入流体物流(“预吹扫”),由于颗粒密度降低,催化剂可以从计量点深入到流化床中,并且分散得更好。

    Method for the discontinuous thermal treatment of catalyst material
    7.
    发明授权
    Method for the discontinuous thermal treatment of catalyst material 失效
    催化剂材料不连续热处理方法

    公开(公告)号:US06683022B1

    公开(公告)日:2004-01-27

    申请号:US09536355

    申请日:2000-03-27

    IPC分类号: B01J2326

    CPC分类号: C08F10/00 C08F4/24

    摘要: Method for the discontinuous thermal treatment of catalyst material comprising the steps (a) introducing the catalyst material into a reactor, (b) heating the catalyst material, (c) thermally treating the catalyst material in the reactor at the reactor temperature, (d) discharging the catalyst material from the reactor and (e) cooling the catalyst material, wherein the reactor temperature is kept constant during the steps (a) to (e), step (b) is carried out during and/or after step (a), step (e) is carried out during and/or after step (d), and step (c) is carried out after step (b) and before step (e). The method is used primarily for the calcination or activation of catalysts or catalyst supports which are used in polyolefin production.

    摘要翻译: 催化剂材料的不连续热处理方法,包括步骤(a)将催化剂材料引入反应器,(b)加热催化剂材料,(c)在反应器温度下热处理反应器中的催化剂材料,(d) 从反应器中排出催化剂材料,(e)冷却催化剂材料,其中步骤(a)至(e)中步骤(b)中步骤(a)至(e)期间反应器温度保持恒定在步骤(a)期间和/ 步骤(e)在步骤(d)期间和/或之后进行,步骤(c)在步骤(b)之后和步骤(e)之前进行。该方法主要用于催化剂的煅烧或活化 或用于聚烯烃生产的催化剂载体。

    Process for Preparing Polyolefins in Suspension
    8.
    发明申请
    Process for Preparing Polyolefins in Suspension 有权
    悬浮液中聚烯烃的制备方法

    公开(公告)号:US20070276170A1

    公开(公告)日:2007-11-29

    申请号:US10589048

    申请日:2005-01-25

    IPC分类号: C08F10/00 C08L23/08 C08L23/14

    摘要: The invention relates to a continuous process for preparing polyolefins having a bimodal or multimodal molar mass distribution in suspension in at least two reactors R1, R2.x, R3.y which are connected in series and in which different reaction conditions are set. In this process, the offgases A1, A2.x, A3.y, A4 and A5 leaving all the reactors connected in series are firstly collected, the collected offgases are then compressed in a compression stage 10, the compressed offgases are subsequently cooled and the cooled material is separated into a gaseous fraction and a liquid fraction. The separated fractions are then recirculated to the polymerization process at different points. The process of the invention allows the total conversion of the polymerization, based on monomer and comonomer used, to be increased to a surprising extent.

    摘要翻译: 本发明涉及一种用于制备在至少两个串联连接并且其中设定不同反应条件的至少两个反应器R 1,R 2,X,R 3中的悬浮液中具有双峰或多峰摩尔质量分布的聚烯烃的连续方法 。 在该过程中,首先收集离开所有串联连接的反应器的废气A 1,A 2,X,A 3,A,A 4和A 5,然后将收集的废气在压缩级10中压缩,压缩的废气 随后冷却并将冷却的材料分离成气体馏分和液体馏分。 然后将分离的级分在不同的点再循环到聚合过程中。 本发明的方法允许基于使用的单体和共聚单体的聚合的总转化率增加到惊人的程度。

    Method for carrying out radical ethylene high-pressure polymerization while preventing undesired polymer deposits
    10.
    发明授权
    Method for carrying out radical ethylene high-pressure polymerization while preventing undesired polymer deposits 有权
    进行自由基乙烯高压聚合同时防止不期望的聚合物沉积物的方法

    公开(公告)号:US06562915B2

    公开(公告)日:2003-05-13

    申请号:US10182563

    申请日:2002-07-31

    IPC分类号: C08F240

    摘要: In a process for the polymerization or copolymerization of ethylenically unsaturated monomers in the presence of polymerization initiators which decompose to form free radicals in a continuously operated polymerization apparatus comprising a fresh gas feed line, a precompressor, a postcompressor, a reactor, a pressure maintenance valve, a high-pressure circuit having a high-pressure product separator and a high-pressure circulation gas return line, a product valve and a low-pressure circuit having a low-pressure product separator and a low-pressure circulation gas return line, nitrogen monoxide or oxygen is introduced as inhibitor into the high-pressure circuit, into the low-pressure circuit and/or the precompressor.

    摘要翻译: 在用于在连续操作的聚合装置中分解形成自由基的聚合引发剂存在下烯键式不饱和单体的聚合或共聚的方法中,所述聚合引发剂包括新鲜气体进料管线,预压缩机,后压缩机,反应器,压力维持阀 具有高压产品分离器和高压循环气体返回管路的高压回路,具有低压产品分离器和低压循环气体返回管路的产品阀和低压回路,氮气 将一氧化碳或氧气作为抑制剂引入高压回路中,进入低压回路和/或预压缩机。