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    Solid component of a catalyst for the homo- and co-polymerization of ethylene
    4.
    发明公开
    Solid component of a catalyst for the homo- and co-polymerization of ethylene 失效
    Feste Komponente eines Katalysators zur Homo- und Co-Polymerization von Ethyl。

    公开(公告)号：EP0480434A2

    公开(公告)日：1992-04-15

    申请号：EP91117315.1

    申请日：1991-10-10

    申请人： ENICHEM S.p.A.

    发明人： Luciani, Luciano ,  Milani, Federico ,  Pondrelli, Maddalena ,  Borghi, Italo ,  Invernizzi, Renzo

    IPC分类号： C08F10/02 ,  C08F4/656 ,  C08F4/637

    CPC分类号： C08F10/02 ,  C08F4/6367 ,  C08F4/6365

    摘要： A solid component of a catalyst for the (co)polymerization of ethylene which includes magnesium, halogen and titanium is obtainable by

    (i) dissolving a dialkyl magnesium compound, a silicon halide and, optionally, an alkyl halide in an inert organic solvent and maintaining contact until a granular solid precipitates;
    (ii) reacting the granular solid with a titanium halide, alkoxide or halogen-alkoxide, to produce a solid catalyst component; and
    (iii) activating this solid component by contacting it with alkyl aluminium halide if a titanium alkoxide or halogen-alkoxide has been used in step (ii).

    摘要翻译： 包含镁，卤素和钛的乙烯（共）聚合催化剂的固体组分可通过以下方法得到：（i）将二烷基镁化合物，卤化硅和任选的烷基卤化物溶解在惰性有机溶剂中并保持 接触直到颗粒状固体沉淀; （ii）使颗粒状固体与卤化钛，醇盐或卤代醇盐反应，生成固体催化剂组分; 和（iii）如果在步骤（ii）中已经使用钛醇盐或卤代醇盐，则通过使其与烷基铝卤化物接触来活化该固体组分。

    Supported catalyst for ethylene polymerization and the copolymerization of ethylene with alpha-olefins, its preparation and use
    5.
    发明公开
    Supported catalyst for ethylene polymerization and the copolymerization of ethylene with alpha-olefins, its preparation and use 失效
    用于乙烯聚合和乙烯与α-烯烃共聚合的催化剂，其制备和使用

    公开(公告)号：EP0446989A3

    公开(公告)日：1992-03-11

    申请号：EP91200481.9

    申请日：1991-03-06

    申请人： ENICHEM S.p.A.

    发明人： Luciani, Luciano ,  Invernizzi, Renzo ,  Masi, Francesco ,  Pondrelli, Maddalena ,  Polesello, Mario ,  Borghi, Italo

    IPC分类号： C08F4/655 ,  C08F10/02

    CPC分类号： C08F10/00 ,  Y10S526/909 ,  C08F4/6567 ,  C08F4/6557 ,  C08F4/6555

    摘要： A supported Ziegler-Natta catalyst active in ethylene polymerization and in the copolymerization of ethylene with alpha-olefins consists of:
    (A) a cocatalyst in the form of an organometallic compound of aluminium, and (B) a solid catalyst component obtained by: (i) impregnating a granular solid support with a solution of a titanium alcoholate and magnesium chloride in a liquid aliphatic hydrocarbon, followed by evaporation of the hydrocarbon solvent; (ii) impregnating the support treated in (i) with a solution of magnesium chloride in a liquid aliphatic ester, followed by evaporation of the ester solvent; and (iii) activating the support treated in (ii) by contact with an alkyl aluminium halide. In a preferred embodiment, measured quantities of a silicon halide are introduced in stage (i) and/or (ii), this considerably improving catalytic activity. In a particular embodiment, zirconium or hafnium are introduced into the solid catalyst component (B) in addition to titanium, to obtain catalysts able to produce polyethylenes with a widened molecular weight distribution.

    Catalyst for the polymerization of olefins
    7.
    发明公开
    Catalyst for the polymerization of olefins 失效
    Katalysator zur烯烃聚合。

    公开(公告)号：EP0533221A1

    公开(公告)日：1993-03-24

    申请号：EP92202197.7

    申请日：1992-07-17

    申请人： ENICHEM S.p.A.

    发明人： Luciani, Luciano ,  Milani, Federico ,  Invernizzi, Renzo ,  Borghi, Italo ,  Labianco, Antonio

    IPC分类号： C08F10/00 ,  C08F4/658

    CPC分类号： C08F10/00 ,  C08F4/6574 ,  C08F4/6565

    摘要： A supported solid component of catalyst, for the stereospecific polymerization of propylene and other α-olefins, is obtained by making a non-activated silica interact in succession with: (i) a magnesium dialkyl or halide of magnesium alkyl; (ii) a halogenating agent selected from silicon, tin and antimony halides; (iii) a titanium tetrahalide: and (iv) a Lewis base.
    A catalyst for the stereospecific polymerization of propylene and other α-olefins is composed of: (A) the solid component of catalyst; (B) an aluminium trialkyl or aluminium alkyl halide; and (C) an electron donor compound, capable of forming a complex compound with component (B).

    摘要翻译： 对于丙烯和其它α-烯烃的立体有择聚合的催化剂的负载固体组分是通过使非活化二氧化硅相继连续获得的：（i）烷基镁的二烷基镁或卤化物; （ii）选自硅，锡和锑的卤化剂; （iii）四卤化钛：和（iv）路易斯碱。 用于丙烯和其它α-烯烃的立体有择聚合的催化剂由以下组成：（A）催化剂的固体组分; （B）三烷基铝或烷基卤化铝; 和（C）能够与组分（B）形成络合物的电子给体化合物。

    Supported catalyst for ethylene polymerization and the copolymerization of ethylene with alpha-olefins, its preparation and use
    10.
    发明公开
    Supported catalyst for ethylene polymerization and the copolymerization of ethylene with alpha-olefins, its preparation and use 失效
    负载型催化剂用于乙烯聚合反应或共聚合的α-烯烃，其制备及其用途。

    公开(公告)号：EP0446989A2

    公开(公告)日：1991-09-18

    申请号：EP91200481.9

    申请日：1991-03-06

    申请人： ENICHEM S.p.A.

    发明人： Luciani, Luciano ,  Invernizzi, Renzo ,  Masi, Francesco ,  Pondrelli, Maddalena ,  Polesello, Mario ,  Borghi, Italo

    IPC分类号： C08F4/655 ,  C08F10/02

    CPC分类号： C08F10/00 ,  Y10S526/909 ,  C08F4/6567 ,  C08F4/6557 ,  C08F4/6555

    摘要： A supported Ziegler-Natta catalyst active in ethylene polymerization and in the copolymerization of ethylene with alpha-olefins consists of:

    (A) a cocatalyst in the form of an organometallic compound of aluminium, and
    (B) a solid catalyst component obtained by:


    (i) impregnating a granular solid support with a solution of a titanium alcoholate and magnesium chloride in a liquid aliphatic hydrocarbon, followed by evaporation of the hydrocarbon solvent;
    (ii) impregnating the support treated in (i) with a solution of magnesium chloride in a liquid aliphatic ester, followed by evaporation of the ester solvent; and
    (iii) activating the support treated in (ii) by contact with an alkyl aluminium halide.

    In a preferred embodiment, measured quantities of a silicon halide are introduced in stage (i) and/or (ii), this considerably improving catalytic activity.
    In a particular embodiment, zirconium or hafnium are introduced into the solid catalyst component (B) in addition to titanium, to obtain catalysts able to produce polyethylenes with a widened molecular weight distribution.

    摘要翻译： 甲负载的齐格勒 - 纳塔催化剂的活性在乙烯聚合和与α-烯烃besteht的乙烯的共聚：（A）在铝的有机金属化合物的形式的助催化剂，和（B）而得到的固体催化剂组分：（ ⅰ）浸渍的钛醇化物和氯化镁在液体脂肪烃，其次是烃溶剂的蒸发的溶液的粒状固体支持物; （二）浸渍的氯化镁在随后将酯的蒸发的液体脂族酯的溶液（i）中处理过的溶剂中的支持; 和（iii）由激活接触与烷基铝卤化物（ii）中处理过的载体。 在优选实施方式中，卤化硅的测量量被引入在阶段（i）和/或（ii）中，这显着提高催化活性。 在特定实施例中，锆或铪被引入到除了钛固体催化剂组分（B），以获得能够产生与聚乙烯加宽的分子量分布的催化剂。