Preparation of finely divided homopolymers and copolymers of ethene
using a liquid alkane as reaction medium
    11.
    发明授权
    Preparation of finely divided homopolymers and copolymers of ethene using a liquid alkane as reaction medium 失效
    使用液体烷烃作为反应介质制备细碎的乙烯均聚物和共聚物

    公开(公告)号:US4794151A

    公开(公告)日:1988-12-27

    申请号:US035919

    申请日:1987-04-08

    摘要: A process for the continuous preparation of finely divided homopolymers and copolymers of ethene by catalytic polymerization in a circular tube reactor using a liquid alkane as reaction medium in which the ethene or ethene/comonomer mixture to be polymerized is present in dissolved form and the polymer formed is present in suspended form and running the reaction mixture as a cycle stream to which the feed materials are added by bleeding in and from which the polymer formed is withdrawn by bleeding out reaction mixture, comprising (a) maintaining the mean concentration C.sub.m of polymer in the cycle stream at a value within a certain range and (b) effecting the bleeding out of reaction mixture at a point of the cycle stream at which the concentration of polymer has a value which is lower than the mean concentration C.sub.m by a distinct and definite amount.

    摘要翻译: 通过催化聚合在圆管反应器中连续制备乙烯的均匀聚合物和共聚物的方法,其中使用液体烷烃作为反应介质,其中待聚合的乙烯或乙烯/共聚单体混合物以溶解形式存在并形成聚合物 以悬浮形式存在,并以作为循环流的方式运行反应混合物,通过渗出反应混合物,通过渗出所形成的聚合物而将原料加入到该循环流中,通过渗出反应混合物排出,其包括(a)将聚合物的平均浓度Cm保持在 循环流在一定范围内的值,和(b)在聚合物浓度具有低于平均浓度C m的值的循环流的点处,通过不同的和明确的方式实现反应混合物的渗出 量。

    Process for producing ethylene polymers and copolymers by means of a
supported catalyst of a chromium-hydrocarbon complex on an inorganic
oxide carrier
    12.
    发明授权
    Process for producing ethylene polymers and copolymers by means of a supported catalyst of a chromium-hydrocarbon complex on an inorganic oxide carrier 失效
    通过在无机氧化物载体上的铬 - 碳氢化合物的负载催化剂生产乙烯聚合物和共聚物的方法

    公开(公告)号:US4359562A

    公开(公告)日:1982-11-16

    申请号:US284380

    申请日:1981-07-17

    IPC分类号: C08F4/69 C08F10/00 C08F4/78

    CPC分类号: C08F10/00

    摘要: A process for the preparation of ethylene homopolymers, and ethylene copolymers with minor amounts of higher .alpha.-monoolefins, by polymerizing the monomer or monomers by means of a supported catalyst (1) containing a chromium-hydrocarbon complex (1.2) on an inorganic oxide carrier (1.1), wherein (1) a supported catalyst is employed which contains (1.2) a chromium-hydrocarbon complex of the formula RCrACrR, where R is a cyclic and/or open-chain hydrocarbon, or hydrocarbon radical, of 2n and 2n+1 carbon atoms respectively and having from 1 to n non-cumulated double bonds, n being from 2 to 10, Cr is chromium and A is cyclooctatetraene, a divalent n-octatetraene radical or alkyl-substituted homologs thereof, on (1.1) a particular inorganic oxide carrier, with or without (2) a co-catalyst chosen from a particular group of alkyl-aluminum compounds. The process gives polymers having a particularly broad molecular weight distribution.

    摘要翻译: 通过在无机氧化物载体上通过含有铬 - 碳氢化合物(1.2)的负载催化剂(1)聚合单体或单体,制备乙烯均聚物的方法和具有少量较高级α-单烯烃的乙烯共聚物 (1.1),其中(1)使用负载型催化剂,其含有(1.2)式RCrACrR的铬 - 烃配合物,其中R是2n和2n +的环状和/或开链烃或烃基, 1个碳原子并且具有1至n个非累积双键,n为2至10,Cr为铬,A为环辛四烯,二价正辛基或其烷基取代的同系物,在(1.1)特定的 无机氧化物载体,具有或不具有(2)选自特定的烷基铝化合物组的助催化剂。 该方法得到具有特别宽的分子量分布的聚合物。

    Preparation of homopolymers of ethene and copolymers of ethene with high
.alpha.-monoolefins using a Ziegler catalyst system
    13.
    发明授权
    Preparation of homopolymers of ethene and copolymers of ethene with high .alpha.-monoolefins using a Ziegler catalyst system 失效
    使用齐格勒催化剂体系制备高(ALPHA) - 烯烃的乙烯和乙烯共聚物的共聚物

    公开(公告)号:US5112928A

    公开(公告)日:1992-05-12

    申请号:US416410

    申请日:1989-10-03

    IPC分类号: C08F4/68 C08F10/00

    CPC分类号: C08F10/00

    摘要: The homopolymerization and copolymerization of ethene are carried out using a Ziegler catalyst system consisting of(1) a transition metal catalyst component,(2) an organoaluminum catalyst component and(3) an organohalogen catalyst component.In the homopolymerization or copolymerization, the solid-phase product (VI) used as (1) is the product which has been obtained by a method in which (1.1) first (1.1.1) an inorganic oxidic substance (I) as the carrier and (1.1.2) a solution (II) of (IIa) a certain oxahydrocarbon and (IIb) a vanadium trichloride/alcohol complex and (IIc) a silicon or boron compound are combined with formation of a suspension (III), the latter is evaporated down to form a solid-phase intermediate (IV), and (1.2) then (1.2.1) the intermediate (IV) obtained in (1.1) and (1.2.2) a dissolved organoaluminum compound (V) are combined with the formation of a suspension, the solid-phase product (VI) obtained as the suspended substance being the transition metal catalyst component (1).

    摘要翻译: 使用由(1)过渡金属催化剂组分,(2)有机铝催化剂组分和(3)有机卤化物催化剂组分组成的齐格勒催化剂体系进行乙烯的均聚和共聚。 在均聚或共聚时,用作(1)的固相产物(VI)是通过以下方法获得的产物:其中(1.1)第一(1.1.1)无机氧化物质(I)作为载体 和(1.1.2)(IIa)(IIa)的某种氧杂烃和(IIb)三氯化钒/醇络合物和(IIc)硅或硼化合物的溶液(II)与形成悬浮液(III) 蒸发掉形成固相中间体(Ⅳ),然后(1.2)然后(1.2.1)将(1.1)和(1.2.2)中得到的中间体(Ⅳ)溶解的有机铝化合物(Ⅴ)与 形成悬浮液时,作为悬浮物质得到的固相物(VI)为过渡金属催化剂成分(1)。

    Preparation of homopolymers of ethene and copolymers of ethene with
higher .alpha.-monoolefins using a Ziegler catalyst system
    14.
    发明授权
    Preparation of homopolymers of ethene and copolymers of ethene with higher .alpha.-monoolefins using a Ziegler catalyst system 失效
    使用齐格勒催化剂体系制备乙烯均聚物和乙烯与较高级α-单烯烃的共聚物

    公开(公告)号:US4831090A

    公开(公告)日:1989-05-16

    申请号:US108457

    申请日:1987-10-15

    CPC分类号: C08F10/00

    摘要: Homopolymerization and copolymerization of ethene are carried out using a Ziegler catalyst system consisting of (1) a transition metal catalyst component prepared by a method in which (1.1) first (1.1.1) an inorganic oxide substance (I) as a carrier and (1.1.2) a solution (II) of (IIa) a certain oxahydrocarbon and (IIb) a mixture of (IIb1) a vanadium trichloride/alcohol complex, (IIb2) a titanium trihalide or titanium trihalide/alcohol complex and, if desired, (IIb3) a zirconium tetrahalide, are combined with formation of a suspension (III), the latter is evaporated down to form a solid-phase intermediate (IV), (1.2) then (1.2.1) the solid-phase intermediate (IV) obtained from (1.1), and (1.2.2) a dissolved organoaluminum compound (V), are combined with formation of a suspension, the resulting suspended substance being a solid-phase product (VI), (2) an organoaluminum catalyst component and (3) an organohalogen catalyst component. In this process, the transition metal catalyst component (1) used is one prepared by a method in which (1.3) in addition (1.3.1) the product (VI) obtained from (1.2) is reacted with (1.3.2) oxygen, the resulting solid-phase end product (VII) being the novel transition metal catalyst component (1).

    摘要翻译: 乙烯的均聚和共聚使用齐格勒催化剂体系进行,所述齐格勒催化剂体系由(1)通过以下方法制备的过渡金属催化剂组分:(1.1)第一(1.1.1)作为载体的无机氧化物(I)和( 1.1.2)(IIa)某种氧杂烃的溶液(II)和(IIb)(IIb1)三氯化钒/醇络合物的混合物,(IIb2)三卤化钛或三卤化钛/醇络合物的混合物,如果需要, (IIb3)四卤化锆与形成悬浮液(III)组合,将其蒸发掉形成固相中间体(IV),(1.2)然后(1.2.1)固相中间体(IV )和(1.2.2)溶解的有机铝化合物(V)与形成悬浮液结合,得到的悬浮物质为固相产物(VI),(2)有机铝催化剂组分 和(3)有机卤素催化剂组分。 在该方法中,使用的过渡金属催化剂组分(1)是通过(1.3)另外(1.3.1)从(1.2)获得的产物(VI)与(1.3.2)氧气反应的方法制备的 得到的固相终产物(Ⅶ)是新型过渡金属催化剂组分(1)。