PROCESS FOR FEEDING A CATALYST IN A POLYMERIZATION REACTOR
    2.
    发明申请
    PROCESS FOR FEEDING A CATALYST IN A POLYMERIZATION REACTOR 审中-公开
    在聚合反应器中加入催化剂的方法

    公开(公告)号:WO2010076289A1

    公开(公告)日:2010-07-08

    申请号:PCT/EP2009/067906

    申请日:2009-12-23

    Abstract: 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 C 3 -C 12 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 C 3 -C 12 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.

    Abstract translation: 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℃的温度范围内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 POLYMERIZATION OF OLEFINS
    9.
    发明申请
    PROCESS FOR THE POLYMERIZATION OF OLEFINS 审中-公开
    烯烃聚合的方法

    公开(公告)号:WO2018083161A1

    公开(公告)日:2018-05-11

    申请号:PCT/EP2017/078033

    申请日:2017-11-02

    Abstract: A gas-phase process for the homo or copolymerization of olefins carried out in the presence of a catalyst system formed by a contacting in a liquid hydrocarbon and in the presence of hydrogen (a) a solid catalyst component comprising a Ti, Mg and C1, and optionally an internal electron donor compound, (b) an aluminum alkyl compound and optionally (c) an external donor compound.

    Abstract translation: 在催化剂体系存在下进行烯烃的均相或共聚的气相方法,所述催化剂体系通过在液态烃中和在氢存在下接触而形成(a)固体催化剂组分 (b)烷基铝化合物和任选的(c)外部给体化合物,其中所述化合物包含Ti,Mg和C1以及任选的内部电子给体化合物。

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