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    Process for polymerising ethylene
    7.
    发明授权
    Process for polymerising ethylene 有权
    聚合乙烯的方法

    公开(公告)号：US08293857B2

    公开(公告)日：2012-10-23

    申请号：US12734585

    申请日：2008-10-15

    申请人： Alain Berardi ,  Andre Frederich ,  Dominique Jan ,  Jean-Jacques Kuhlburger ,  Anthony Sgard ,  Alain Van Daele

    发明人： Alain Berardi ,  Andre Frederich ,  Dominique Jan ,  Jean-Jacques Kuhlburger ,  Anthony Sgard ,  Alain Van Daele

    IPC分类号： C08F2/00 ,  C08F4/44 ,  C08F4/52 ,  C08F4/12 ,  C08F110/02 ,  C08F4/02

    CPC分类号： C08F10/02 ,  C08F110/02 ,  C08F210/16 ,  C08F4/6492 ,  C08F4/6426 ,  C08F2500/12 ,  C08F210/14

    摘要： Process for polymerization of ethylene using a catalyst system including (i) a solid catalyst of Ti, Mg and halogen, (ii) a first activator which is at least one trialkylaluminium compound of the formula AlR3, where each R is independently a C2 to C20 alkyl radical, and (iii) a second activator which is at least one alkylaluminium chloride of the formula AlR′2Cl, where each R′ is independently a C2 to C20 alkyl radical. The second activator is introduced directly into the polymerization reactor, without precontact with the solid catalyst, continuously or semi-continuously, and at a maximum rate of introduction at any time corresponding to less than 10 ppm by weight of chlorine relative to the rate of polyethylene production.

    摘要翻译： 使用包括（i）Ti，Mg和卤素的固体催化剂的催化剂体系聚合乙烯的方法，（ii）第一活化剂，其为至少一种式AlR 3的三烷基铝化合物，其中每个R独立地为C 2至C 20 烷基，和（iii）第二活化剂，其为至少一种式AlR'2Cl的烷基氯化铝，其中每个R'独立地为C 2至C 20烷基。 将第二活化剂直接引入聚合反应器中，无需与固体催化剂预连接，连续或半连续，并且在任何相应于低于10ppm重量的氯的聚合物的最大引入速率相对于聚乙烯的速率 生产。

    Slurry phase polymerisation process
    8.
    发明授权
    Slurry phase polymerisation process 有权
    浆相聚合工艺

    公开(公告)号：US08183333B2

    公开(公告)日：2012-05-22

    申请号：US12733378

    申请日：2008-08-29

    申请人： Benoit Koch ,  Daniel Marissal ,  Marc Parisel ,  Brent R Walworth ,  Andre Frederich

    发明人： Benoit Koch ,  Daniel Marissal ,  Marc Parisel ,  Brent R Walworth ,  Andre Frederich

    IPC分类号： C08F2/00 ,  C08F4/00 ,  C08F110/02

    CPC分类号： C08F6/20 ,  C08F6/003 ,  C08F10/02 ,  C08F110/02 ,  C08F210/16 ,  C08L23/04 ,  C08F2/001 ,  C08F2/14

    摘要： Polymerisation process in which polyethylene is produced in slurry in a polymerisation reactor in the presence of a Ziegler Natta catalyst and an activator, and a stream or slurry containing the polymer is withdrawn from the reactor and transferred to a flash tank operating at a pressure and temperature such that at least 50 mol % of the liquid or non-polymer component of the stream entering the flash tank or slurry is withdrawn from the flash tank as a vapour and at least 98 mol % of the vapour withdrawn from the flash tank is capable of being condensed at a temperature of between 15 and 50° C., without compression. A by-product suppressor, which reduces the amount of by-product formed per unit of polyethylene produced by at least 10%, compared with an identical polymerisation process where the by-product suppressor is not present, is used in the reactor. The molar ratio of the by-product suppressor added to the reactor to titanium added to the reactor is between 0.2 and 1.

    摘要翻译： 在齐格勒纳塔催化剂和活化剂存在下，在聚合反应器中制备聚乙烯的聚合方法，以及含有聚合物的料流或浆料从反应器中排出并转移到在压力和温度下操作的闪蒸罐 使得进入闪蒸罐或浆料的物流的至少50mol％的液体或非聚合物组分作为蒸气从闪蒸罐中取出，并且从闪蒸罐中取出的至少98mol％的蒸气能够 在15至50℃的温度下冷凝，而不压缩。 在反应器中使用副产物抑制剂，其与在副产物抑制剂不存在的相同聚合方法相比，减少了每单位产生的聚乙烯至少10％形成的副产物的量。 添加到反应器中的副产物抑制剂与添加到反应器中的钛的摩尔比在0.2和1之间。

    PROCESS FOR POLYMERISING ETHYLENE
    9.
    发明申请
    PROCESS FOR POLYMERISING ETHYLENE 有权
    聚合乙烯的方法

    公开(公告)号：US20100234543A1

    公开(公告)日：2010-09-16

    申请号：US12734585

    申请日：2008-10-15

    申请人： Alain Berardi ,  Andre Frederich ,  Jan Dominique ,  Jean-Jacques Kuhlburger ,  Anthony Sgard ,  Alain Van Daele

    发明人： Alain Berardi ,  Andre Frederich ,  Jan Dominique ,  Jean-Jacques Kuhlburger ,  Anthony Sgard ,  Alain Van Daele

    IPC分类号： C08F4/50

    CPC分类号： C08F10/02 ,  C08F110/02 ,  C08F210/16 ,  C08F4/6492 ,  C08F4/6426 ,  C08F2500/12 ,  C08F210/14

    摘要： The present invention relates to a process for polymerisation of ethylene, in particular a process which comprises using a catalyst system comprising comprising a catalyst system comprising: i) a solid catalyst comprising Ti, Mg and halogen, ii) a first activator which is at least one trialkylaluminium compound of the formula AIR3, where each R is independently a C2 to C20 alkyl radical, and iii) a second activator which is at least one alkylaluminium chloride of the formula AlR′2Cl, where each R′ is independently a C2 to C20 alkyl radical, characterised in that the second activator is introduced directly in the polymerisation reactor, without precontact with the solid catalyst, continuously or semi-continuously and at a maximum rate of introduction at any time corresponding to less than 10 ppm by weight of chlorine relative to the rate of polyethylene production.

    摘要翻译： 本发明涉及一种聚合乙烯的方法，特别是包括使用包括催化剂体系的催化剂体系的方法，所述催化剂体系包含：i）包含Ti，Mg和卤素的固体催化剂，ii）至少第一活化剂 一种式为AIR3的三烷基铝化合物，其中每个R独立地为C 2至C 20烷基，和iii）第二活化剂，其为至少一种式AlR'2Cl的烷基氯化铝，其中每个R'独立地为C 2至C 20 烷基，其特征在于，第二活化剂直接在聚合反应器中引入，不与固体催化剂预接触，连续或半连续并且以最大引入速率在任何时间对应于小于10ppm重量的氯相对 达到聚乙烯生产率。

    SLURRY PHASE POLYMERISATION PROCESS
    10.
    发明申请
    SLURRY PHASE POLYMERISATION PROCESS 有权
    浆料相聚合方法

    公开(公告)号：US20100174037A1

    公开(公告)日：2010-07-08

    申请号：US12733378

    申请日：2008-08-29

    申请人： Benoit Koch ,  Daniel Marissal ,  Marc Parisel ,  Brent R. Walworth ,  Andre Frederich

    发明人： Benoit Koch ,  Daniel Marissal ,  Marc Parisel ,  Brent R. Walworth ,  Andre Frederich

    IPC分类号： C08F2/01 ,  C08F110/02 ,  C08F4/76

    CPC分类号： C08F6/20 ,  C08F6/003 ,  C08F10/02 ,  C08F110/02 ,  C08F210/16 ,  C08L23/04 ,  C08F2/001 ,  C08F2/14

    摘要： A polymerisation process is disclosed in which polyethylene is produced in slurry in a polymerisation reactor in the presence of a Ziegler Natta catalyst and an activator, and slurry containing the polymer is withdrawn from the reactor and transferred to a flash tank operating at a pressure and temperature such that at least 50 mol % of the liquid component of the slurry is withdrawn from the flash tank as a vapour and at least 98 mol %, more preferably at least 98.5 mol %, and most preferably at least 99.5 mol %, of the vapour withdrawn from the flash tank is capable of being condensed at a temperature of between 15 and 40C without compression, wherein a by-product suppressor, which reduces the amount of by-product formed per unit of polyethylene produced by at least 10% compared with an identical polymerisation process where the by-product suppressor is not present, is used in the reactor.

    摘要翻译： 公开了一种聚合方法，其中聚乙烯在齐格勒纳塔催化剂和活化剂存在下在聚合反应器中以淤浆形式制备，含有聚合物的浆料从反应器中排出并转移到在压力和温度下操作的闪蒸罐 使得至少50mol％的浆液的液体组分作为蒸气从闪蒸罐中取出，并且至少98mol％，更优选至少98.5mol％，最优选至少99.5mol％的蒸气 从闪蒸罐中取出的能够在不压缩的情况下在15至40℃的温度下冷凝，其中副产物抑制剂将每单位聚乙烯形成的副产物的量与 在反应器中使用相同的聚合方法，其中副产物抑制剂不存在。