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    Process for feeding a catalyst in a polymerization reactor
    1.
    发明授权
    Process for feeding a catalyst in a polymerization reactor 有权
    在聚合反应器中进料催化剂的方法

    公开(公告)号：US08431658B2

    公开(公告)日：2013-04-30

    申请号：US13142444

    申请日：2009-12-23

    申请人： Pietro Baita ,  Rainer Karer ,  Gerhardus Meier ,  Guido Funk ,  Gabriele Mei

    发明人： Pietro Baita ,  Rainer Karer ,  Gerhardus Meier ,  Guido Funk ,  Gabriele Mei

    IPC分类号： C08F4/44 ,  B01J31/02

    CPC分类号： B01J8/0015 ,  B01J8/1827 ,  B01J2208/00752 ,  B01J2208/00769 ,  C08F10/00 ,  C08F210/16 ,  C08F2/34 ,  C08F210/08 ,  C08F2500/12

    摘要： A process for introducing a catalyst powder based on a titanium compound supported on magnesium halide into a gas-phase olefin polymerization reactor, characterized in that it comprises: (a) storing the catalyst powder under an atmosphere of a liquid C3-C12 alkane; (b) withdrawing from step (a) a measured amount of said catalyst powder by means of a rotary valve; (c) transferring said metered amount of catalyst powder to a catalyst activation section by a continuous pick-up flow of a liquid C3-C12 alkane; (d) contacting the catalyst powder with a liquid phase comprising an organo-aluminum compound and optionally an external donor compound, at a temperature ranging from −20° C. to 60° C.; (e) introducing the activated catalyst powder in one or more gas-phase olefin polymerization reactors, where a gaseous mixture comprising at least one alpha-olefin is subjected to polymerization.

    摘要翻译： 将基于负载在卤化镁上的钛化合物的催化剂粉末引入气相烯烃聚合反应器的方法，其特征在于，其包括：（a）将催化剂粉末在液体C 3 -C 12烷烃的气氛下储存; （b）通过旋转阀从步骤（a）中取出测量量的所述催化剂粉末; （c）通过液体C 3 -C 12烷烃的连续提取流将所述计量的催化剂粉末转移到催化剂活化部分; （d）在-20℃至60℃的温度下使催化剂粉末与包含有机铝化合物和任选的外部供体化合物的液相接触; （e）将活化的催化剂粉末引入一个或多个气相烯烃聚合反应器中，其中包含至少一种α-烯烃的气体混合物进行聚合。

    Process for Feeding a Catalyst in a Polymerization Reactor
    2.
    发明申请
    Process for Feeding a Catalyst in a Polymerization Reactor 有权
    在聚合反应器中加入催化剂的方法

    公开(公告)号：US20110282013A1

    公开(公告)日：2011-11-17

    申请号：US13142444

    申请日：2009-12-23

    申请人： Pietro Baita ,  Rainer Karer ,  Gerhardus Meier ,  Guido Funk ,  Gabriele Mei

    发明人： Pietro Baita ,  Rainer Karer ,  Gerhardus Meier ,  Guido Funk ,  Gabriele Mei

    IPC分类号： C08F4/16

    CPC分类号： B01J8/0015 ,  B01J8/1827 ,  B01J2208/00752 ,  B01J2208/00769 ,  C08F10/00 ,  C08F210/16 ,  C08F2/34 ,  C08F210/08 ,  C08F2500/12

    摘要： A process for introducing a catalyst powder based on a titanium compound supported on magnesium halide into a gas-phase olefin polymerization reactor, characterized in that it comprises: (a) storing the catalyst powder under an atmosphere of a liquid C3-C12 alkane; (b) withdrawing from step (a) a measured amount of said catalyst powder by means of a rotary valve; (c) transferring said metered amount of catalyst powder to a catalyst activation section by a continuous pick-up flow of a liquid C3-C12 alkane; (d) contacting the catalyst powder with a liquid phase comprising an organo-aluminum compound and optionally an external donor compound, at a temperature ranging from −20° C. to 60° C.; (e) introducing the activated catalyst powder in one or more gas-phase olefin polymerization reactors, where a gaseous mixture comprising at least one alpha-olefin is subjected to polymerization.

    摘要翻译： 将基于负载在卤化镁上的钛化合物的催化剂粉末引入气相烯烃聚合反应器的方法，其特征在于，其包括：（a）将催化剂粉末在液体C 3 -C 12烷烃的气氛下储存; （b）通过旋转阀从步骤（a）中取出测量量的所述催化剂粉末; （c）通过液体C 3 -C 12烷烃的连续提取流将所述计量的催化剂粉末转移到催化剂活化部分; （d）在-20℃至60℃的温度下使催化剂粉末与包含有机铝化合物和任选的外部供体化合物的液相接触; （e）将活化的催化剂粉末引入一个或多个气相烯烃聚合反应器中，其中包含至少一种α-烯烃的气体混合物进行聚合。

    Process for the (Co) Polymerization of Ethylene
    5.
    发明申请
    Process for the (Co) Polymerization of Ethylene 有权
    乙烯（Co）聚合方法

    公开(公告)号：US20070282083A1

    公开(公告)日：2007-12-06

    申请号：US10581983

    申请日：2004-11-24

    申请人： Pietro Baita ,  Massimo Covezzi ,  Gabriele Mei ,  Giampiero Morini ,  Joachim Pater

    发明人： Pietro Baita ,  Massimo Covezzi ,  Gabriele Mei ,  Giampiero Morini ,  Joachim Pater

    IPC分类号： C08F10/02 ,  C08F2/00 ,  C08F2/34 ,  C08F4/654

    CPC分类号： C08F10/00 ,  C08F10/02 ,  C08F210/16 ,  C08F4/6494 ,  C08F4/651 ,  C08F2/001 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/08 ,  C08F2500/07 ,  C08F210/08

    摘要： A process for preparing a broad molecular weight polyethylene carried out in the presence of a catalyst system comprising (i) a solid catalyst component comprising Mg, Ti, halogen, and optionally an internal electron donor compound, and (ii) an Al-alkyl cocatalyst said process comprising at least two step of polymerization (a) and (b), in which: in a first step (a) ethylene is polymerized in the presence of a molecular weight regulator in order to produce a ethylene (co)polymer, and in a further step (b), which is carried out in the presence of an external electron donor compound added to this polymerization step as a fresh reactant, ethylene is copolymerized with an alpha olefin of formula CH2═CHR, in which R is a C1-C20 hydrocarbon group, to produce an ethylene copolymer having a molecular weight higher than that of the copolymer produced in step (b).

    摘要翻译： 一种制备在催化剂体系存在下进行的宽分子量聚乙烯的方法，包括（i）包含Mg，Ti，卤素和任选的内电子给体化合物的固体催化剂组分，和（ii）Al-烷基助催化剂 所述方法包括至少两个聚合步骤（a）和（b）），其中：在第一步（a）中，在分子量调节剂存在下使乙烯聚合以产生乙烯（共）聚合物，和 在另外的步骤（b）中，其在作为新的反应物加入到该聚合步骤中的外部电子给体化合物的存在下进行，乙烯与式CH 2 -CHR的α-烯烃共聚，其中R是C1 -C 20烃基，得到分子量高于步骤（b）中制备的共聚物的乙烯共聚物。

    PROCESS FOR THE POLYOLEFIN FINISHING
    7.
    发明申请
    PROCESS FOR THE POLYOLEFIN FINISHING 有权
    聚烯烃饰面工艺

    公开(公告)号：US20100004408A1

    公开(公告)日：2010-01-07

    申请号：US12309894

    申请日：2007-08-01

    申请人： Pietro Baita ,  Giuseppe Penzo ,  Gabriele Mei

    发明人： Pietro Baita ,  Giuseppe Penzo ,  Gabriele Mei

    IPC分类号： C08F6/00

    CPC分类号： B01J8/24 ,  B01J8/003 ,  B01J2219/00006 ,  C08F6/005 ,  C08F6/02 ,  C08F210/16 ,  C08L23/00 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/24

    摘要： A process to perform the finishing of polyolefins produced by gas-phase catalytic polymerization of one or more α-olefins in the presence of a polymerization diluent selected from a C3-C5 alkane, wherein the polyolefin granules discharged from the gas-phase reactor are subjected to: (1) a first degassing step in which said polyolefin is counter-currently contacted with a gaseous stream containing at least 85% by mol of a stripping agent selected from a C3-C5 alkane, said gaseous stream being continuously derived from the monomer recovery section of the polymerization plant; (2) a second degassing step in which said polyolefin is counter-currently contacted with steam, the amount of steam being from 10 to 200 Kg per 1000 kg of polyolefin.

    摘要翻译： 在选自C3-C5烷烃的聚合稀释剂存在下进行一种或多种α-烯烃的气相催化聚合制备的聚烯烃的精制方法，其中从气相反应器排出的聚烯烃颗粒经 （1）第一脱气步骤，其中所述聚烯烃与包含至少85摩尔％选自C 3 -C 5烷烃的汽提剂的气流反向接触，所述气流连续地衍生自单体 聚合厂的回收段; （2）第二脱气步骤，其中所述聚烯烃与蒸汽相反地接触，蒸汽的量为10-200Kg / 1000kg聚烯烃。

    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 polyolefin finishing
    10.
    发明授权
    Process for the polyolefin finishing 有权
    聚烯烃整理工艺

    公开(公告)号：US07786254B2

    公开(公告)日：2010-08-31

    申请号：US12309894

    申请日：2007-08-01

    申请人： Pietro Baita ,  Giuseppe Penzo ,  Gabriele Mei

    发明人： Pietro Baita ,  Giuseppe Penzo ,  Gabriele Mei

    IPC分类号： C08F6/00 ,  C08F2/34

    CPC分类号： B01J8/24 ,  B01J8/003 ,  B01J2219/00006 ,  C08F6/005 ,  C08F6/02 ,  C08F210/16 ,  C08L23/00 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/24

    摘要： A process to perform the finishing of polyolefins produced by gas-phase catalytic polymerization of one or more α-olefins in the presence of a polymerization diluent selected from a C3-C5 alkane, wherein the polyolefin granules discharged from the gas-phase reactor are subjected to: (1) a first degassing step in which said polyolefin is counter-currently contacted with a gaseous stream containing at least 85% by mol of a stripping agent selected from a C3-C5 alkane, said gaseous stream being continuously derived from the monomer recovery section of the polymerization plant; (2) a second degassing step in which said polyolefin is counter-currently contacted with steam, the amount of steam being from 10 to 200 Kg per 1000 kg of polyolefin.

    摘要翻译： 在选自C3-C5烷烃的聚合稀释剂的存在下进行由一种或多种α-烯烃的气相催化聚合制备的聚烯烃的精制方法，其中从气相反应器排出的聚烯烃颗粒经受 （1）第一脱气步骤，其中所述聚烯烃与包含至少85摩尔％选自C 3 -C 5烷烃的汽提剂的气流反向接触，所述气流连续地衍生自单体 聚合厂的回收段; （2）第二脱气步骤，其中所述聚烯烃与蒸汽相反地接触，蒸汽的量为10-200Kg / 1000kg聚烯烃。