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    PROCESS FOR THE POLYMERIZATION OF OLEFINS
    1.
    发明申请
    PROCESS FOR THE POLYMERIZATION OF OLEFINS 审中-公开
    烯烃聚合方法

    公开(公告)号：WO2009010413A1

    公开(公告)日：2009-01-22

    申请号：PCT/EP2008/058751

    申请日：2008-07-07

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： GOVONI, Gabriele ,  PATRONCINI, Giovanni

    IPC: C08F2/12 ,  C08F10/00

    CPC classification number: C08F10/06 ,  C08F210/06 ,  C08F2/001 ,  C08F4/6492 ,  C08F2/005 ,  C08F4/651 ,  C08F210/16

    Abstract: A process for the polymerization of olefins comprising: a) polymerizing at least a liquid olefin monomer in a polymerization reactor to form a polymerization slurry comprising a polyolefin and said liquid monomer; b) continuously transferring the polymerization slurry from the polymerization reactor to a flash chamber by means of a transfer line comprising a pipe where a turbulent flow of a tri-phase stream comprising polymer, liquid monomers, and gaseous monomers is established; c) separating the evaporated monomer from the polymer in said flash chamber; the process being characterized in that an anti-fouling agent in a liquid form is continuously introduced upstream the inlet of said pipe of step (b).

    Abstract translation: 一种用于烯烃聚合的方法，包括：a）在聚合反应器中聚合至少一种液态烯烃单体以形成包含聚烯烃和所述液体单体的聚合浆料; b）通过包括管的输送管线将聚合淤浆从聚合反应器连续转移到闪蒸室，其中建立了包含聚合物，液体单体和气态单体的三相流的湍流; c）在所述闪蒸室中分离蒸发的单体与聚合物; 该方法的特征在于，在步骤（b）的所述管的入口的上游连续引入液体形式的防污剂。

    GAS-PHASE PROCESS FOR PREPARING HETEROPHASIC PROPYLENE COPOLYMERS
    3.
    发明申请
    GAS-PHASE PROCESS FOR PREPARING HETEROPHASIC PROPYLENE COPOLYMERS 审中-公开
    制备亲水性丙烯共聚物的气相法

    公开(公告)号：WO2008015113A2

    公开(公告)日：2008-02-07

    申请号：PCT/EP2007/057539

    申请日：2007-07-20

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： GOVONI, Gabriele ,  COVEZZI, Massimo ,  PENZO, Giuseppe ,  CIARROCCHI, Antonio ,  DE LUCIA, Antonio

    IPC: C08F210/06

    CPC classification number: C08F297/08 ,  C08F210/06 ,  C08F297/083 ,  C08L23/10 ,  C08L23/142 ,  C08L2205/02 ,  C08L2205/025 ,  C08L2207/02 ,  C08L2308/00 ,  C08F2/001 ,  C08F2/34 ,  C08L2666/02 ,  C08L2666/06 ,  C08F210/16 ,  C08F2500/18 ,  C08F2500/17 ,  C08F2500/26

    Abstract: A polymerization process for preparing heterophasic propylene copolymers in two or more gas-phase reactors connected in series, in the presence of a polymerization catalyst comprising a catalytic component based on a titanium compound supported on magnesium halide, the process comprising the following steps: - contacting said catalytic component with an organo-Aluminum compound at a temperature from 5°C to 30°C and a weight ratio propylene/(catalytic component) ranging from 0 to 2.0; - prepolymerizing the catalyst from A) with propylene, optionally in the presence of an inert hydrocarbon solvent; - polymerizing propylene, optionally with an another -olefin comonomer in an amount lower than 15% by weight, to prepare a semicrystalline polymer component; - successively copolymerizing two or more alpha-olefin comonomers C 2 -C 10 to prepare one or more olefin copolymers having a solubility in xylene higher than 15% by weight; the process being characterized in that the bulk density of the semi-crystalline component of step C) is adjusted at a value lower than 0.40 g/cm 3 .

    Abstract translation: 在包含基于负载在卤化镁上的钛化合物的催化组分的聚合催化剂存在下，在两个或更多个串联连接的气相反应器中制备多相丙烯共聚物的聚合方法， 所述方法包括以下步骤： - 使所述催化组分与有机铝化合物在5℃至30℃的温度下接触，丙烯/（催化组分）的重量比为0至2.0; - 任选在惰性烃溶剂存在下，使来自A）的催化剂与丙烯预聚合; - 使丙烯，任选与低于15重量％的另一种α-烯烃共聚单体聚合，以制备半结晶聚合物组分; - 连续共聚两种或更多种α-烯烃共聚单体C 2 -C 10以制备一种或多种在二甲苯中的溶解度高于15重量％的烯烃共聚物; 该方法的特征在于，将步骤C）的半晶体组分的体积密度调节为低于0.40g / cm 3的值。

    PROCESS FOR THE POLYMERIZATION OF OLEFINS
    4.
    发明授权
    PROCESS FOR THE POLYMERIZATION OF OLEFINS 有权
    工艺聚合烯烃

    公开(公告)号：EP2176300B1

    公开(公告)日：2012-08-22

    申请号：EP08785939.3

    申请日：2008-07-07

    Applicant: Basell Poliolefine Italia S.r.l.

    Inventor： GOVONI, Gabriele ,  PATRONCINI, Giovanni

    IPC: C08F10/00 ,  C08F10/06 ,  C08F2/12

    CPC classification number: C08F10/06 ,  C08F210/06 ,  C08F2/001 ,  C08F4/6492 ,  C08F2/005 ,  C08F4/651 ,  C08F210/16

    Abstract: A process for the polymerization of olefins comprising: a) polymerizing at least a liquid olefin monomer in a polymerization reactor to form a polymerization slurry comprising a polyolefin and said liquid monomer; b) continuously transferring the polymerization slurry from the polymerization reactor to a flash chamber by means of a transfer line comprising a pipe where a turbulent flow of a tri-phase stream comprising polymer, liquid monomers, and gaseous monomers is established; c) separating the evaporated monomer from the polymer in said flash chamber; the process being characterized in that an anti-fouling agent in a liquid form is continuously introduced upstream the inlet of said pipe of step (b).

    PROCESS FOR THE POLYMERIZATION OF OLEFINS
    6.
    发明公开
    PROCESS FOR THE POLYMERIZATION OF OLEFINS 有权
    烯烃聚合的方法

    公开(公告)号：EP2176300A1

    公开(公告)日：2010-04-21

    申请号：EP08785939.3

    申请日：2008-07-07

    Applicant: Basell Poliolefine Italia S.R.L.

    Inventor： GOVONI, Gabriele ,  PATRONCINI, Giovanni

    IPC: C08F2/12 ,  C08F10/00

    CPC classification number: C08F10/06 ,  C08F210/06 ,  C08F2/001 ,  C08F4/6492 ,  C08F2/005 ,  C08F4/651 ,  C08F210/16

    Abstract: A process for the polymerization of olefins comprising: a) polymerizing at least a liquid olefin monomer in a polymerization reactor to form a polymerization slurry comprising a polyolefin and said liquid monomer; b) continuously transferring the polymerization slurry from the polymerization reactor to a flash chamber by means of a transfer line comprising a pipe where a turbulent flow of a tri-phase stream comprising polymer, liquid monomers, and gaseous monomers is established; c) separating the evaporated monomer from the polymer in said flash chamber; the process being characterized in that an anti-fouling agent in a liquid form is continuously introduced upstream the inlet of said pipe of step (b).

    Abstract translation: 一种烯烃聚合方法，包括：a）在聚合反应器中使至少一种液态烯烃单体聚合以形成包含聚烯烃和所述液态单体的聚合浆料; b）通过包括管道的输送管线将聚合淤浆从聚合反应器连续输送至闪蒸室，其中建立了包含聚合物，液体单体和气态单体的三相流的湍流; c）在所述闪蒸室中从所述聚合物分离蒸发的单体; 该方法的特征在于在步骤（b）的所述管的入口的上游连续引入液体形式的防污剂。

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