GAS-PHASE PROCESS AND APPARATUS FOR THE POLYMERIZATION OF OLEFINS
    1.
    发明申请
    GAS-PHASE PROCESS AND APPARATUS FOR THE POLYMERIZATION OF OLEFINS 审中-公开
    气相工艺和油脂聚合装置

    公开(公告)号:WO2007071527A1

    公开(公告)日:2007-06-28

    申请号:PCT/EP2006/068935

    申请日:2006-11-27

    Abstract: A gas-phase process for polymerizing one or more α-olefins in a fluidized bed reactor in the presence of a polymerization catalyst, said fluidized bed reactor being equipped with a fluidization grid arranged at its base, and external means for recycling and cooling the unreacted gas from the top of said reactor to said fluidization grid, the process being characterized by: (i) a continuous pneumatic recycle of polymer by means of a circulation loop connecting said fluidization grid to the upper region of the fluidized bed reactor; (ii) a continuous discharge of polymer from a zone of said circulation loop having a polymer concentration higher than the polymer concentration inside the fluidized polymer bed.

    Abstract translation: 一种用于在流化床反应器中在聚合催化剂存在下聚合一种或多种α-烯烃的气相方法,所述流化床反应器配备有布置在其底部的流化栅格,以及用于再循环和冷却未反应的外部装置 气体从所述反应器的顶部到所述流化栅格,所述方法的特征在于:(i)通过将所述流化栅格连接到流化床反应器的上部区域的循环回路连续气动循环聚合物; (ii)从聚合物浓度高于流化聚合物床内的聚合物浓度的所述循环回路的区域连续排出聚合物。

    PROCESS FOR THE GAS-PHASE POLYMERIZATION OF OLEFINS
    3.
    发明申请
    PROCESS FOR THE GAS-PHASE POLYMERIZATION OF OLEFINS 审中-公开
    油相的气相聚合方法

    公开(公告)号:WO2009080660A1

    公开(公告)日:2009-07-02

    申请号:PCT/EP2008/067772

    申请日:2008-12-17

    Abstract: A process for the gas-phase polymerization of α-olefms carried out in two interconnected polymerization zones, wherein the growing polymer particles flow through the first of said polymerization zones (riser) under fast fluidization conditions, leave said riser and enter the second of said polymerization zones (downcomer) through which they flow downward in a densified form, the process being characterized in that: (a) the gas mixture present in the riser is totally or partially prevented from entering the downcomer by introducing into the upper part of said downcomer a liquid stream LB having a composition different from the gaseous mixture present in the riser; (b) the ratio R between the flow rate F p of polymer circulated between said downcomer and said riser and the flow rate LB of said liquid being adjusted in a range from 10 to 50.

    Abstract translation: 一种用于在两个相互连接的聚合区中进行的α-烯烃的气相聚合的方法,其中生长的聚合物颗粒在快速流化条件下流过第一个所述聚合区(提升管),离开所述提升管并进入所述 聚合区(降液管),通过它们以致密化形式向下流动,该方法的特征在于:(a)通过引入所述降液管的上部,存在于提升管中的气体混合物被全部或部分地防止进入降液管 具有与提升管中存在的气体混合物不同的组成的液体流LB; (b)在所述降液管和所述提升管之间循环的聚合物的流量Fp与所述液体的流量LB之间的比R调节在10至50的范围内。

    MULTISTAGE PROCESS FOR THE POLYMERIZATION OF OLEFINS
    4.
    发明申请
    MULTISTAGE PROCESS FOR THE POLYMERIZATION OF OLEFINS 审中-公开
    烯烃聚合的多种方法

    公开(公告)号:WO2008058839A2

    公开(公告)日:2008-05-22

    申请号:PCT/EP2007/061432

    申请日:2007-10-24

    Abstract: A process for the multistage polymerization of olefins comprising a gas-phase polymerization carried out in at least two serially connected gas-phase reactors, the continuous discharge of polymer and gas reaction mixture from an upstream reactor into a transfer device and the continuous feeding of polymer from said transfer device to a downstream reactor, said transfer device comprising: a) a separation chamber in which said gas reaction mixture is removed from the polymer; b) at least a couple of lock hoppers working intermittently in parallel, where one of said lock hoppers is continuously filled with the polymer coming from step a), while simultaneously the other one is continuously pressurized by means of a gas comprising the reaction mixture coming from said downstream reactor.

    Abstract translation: 一种用于烯烃多段聚合的方法,包括在至少两个串联连接的气相反应器中进行的气相聚合,将聚合物和气体反应混合物从上游反应器连续排放到转移装置中以及连续进料聚合物 从所述转移装置到下游反应器,所述转移装置包括:a)分离室,其中所述气体反应混合物从聚合物中除去; b)至少两个平行间歇地工作的锁定料斗,其中一个所述锁定料斗连续填充来自步骤a)的聚合物,同时另一个通过包含反应混合物的气体连续加压 从所述下游反应器。

    PROCESS FOR THE OLEFIN POLYMERIZATION USING MULTIPLE LOOP REACTORS
    5.
    发明申请
    PROCESS FOR THE OLEFIN POLYMERIZATION USING MULTIPLE LOOP REACTORS 审中-公开
    使用多环路反应器进行烯烃聚合的方法

    公开(公告)号:WO2009027197A1

    公开(公告)日:2009-03-05

    申请号:PCT/EP2008/060411

    申请日:2008-08-07

    Abstract: A process for the slurry polymerization of one or more α-olefins in a sequence of at least two loop reactors interconnected by means of a transfer line, the transfer of polymer from a first loop reactor to a second loop reactor comprising the steps: i) establishing a recycle of polymer slurry to the second loop reactor by means of said transfer line, whereby a fraction of polymer slurry S1 withdrawn from said second loop reactor is continuously recycled back to it; ii) discharging a fraction of polymer slurry produced in the first loop reactor into a discharge line connected to said transfer line;

    Abstract translation: 一种用于通过传输线互连的至少两个环管反应器的序列中的一种或多种α-烯烃的淤浆聚合的方法,聚合物从第一回路反应器转移到第二回路反应器,包括步骤:i) 通过所述传输管线建立聚合物浆料到第二回路反应器的再循环,由此从所述第二回路反应器排出的聚合物浆料S1的一部分被连续循环回到其中; ii)将在第一回路反应器中产生的聚合物淤浆的一部分排放到与所述输送管线相连的排出管线中;

    APPARATUS FOR THE LIQUID-PHASE POLYMERIZATION OF OLEFINS
    6.
    发明申请
    APPARATUS FOR THE LIQUID-PHASE POLYMERIZATION OF OLEFINS 审中-公开
    油相液相聚合装置

    公开(公告)号:WO2008095807A1

    公开(公告)日:2008-08-14

    申请号:PCT/EP2008/050946

    申请日:2008-01-28

    Abstract: An apparatus for the liquid-phase polymerization of one or more α-olefins comprising: a first reactor selected from a loop reactor or a continuously stirred tank reactor; at least a downstream loop reactor; a connection line for transferring a polymer slurry from said first reactor to said downstream loop reactor, said connection line comprising: one or more adjacent pipes arranged at progressively increasing heights, each pipe forming with a horizontal direction (x) an angle α greater than the angle of rest of the obtained polymer; an on-off valve positioned flush with the wall of said downstream loop reactor.

    Abstract translation: 一种用于一种或多种α-烯烃的液相聚合的装置,包括:选自环管反应器或连续搅拌釜式反应器的第一反应器; 至少一个下游回路反应器; 用于将聚合物浆料从所述第一反应器转移到所述下游回路反应器的连接管线,所述连接管线包括:一个或多个相邻的管道,其逐渐增加的高度布置,每个管道以水平方向(x)形成大于 得到的聚合物的静止角; 与所述下游回路反应器的壁齐平的开关阀。

    PROCESS AND APPARATUS FOR DRYING A POLYMER
    7.
    发明申请
    PROCESS AND APPARATUS FOR DRYING A POLYMER 审中-公开
    干燥聚合物的方法和装置

    公开(公告)号:WO2008080788A2

    公开(公告)日:2008-07-10

    申请号:PCT/EP2007/063808

    申请日:2007-12-12

    CPC classification number: F26B3/08 F26B21/14

    Abstract: An apparatus for drying polymer particles by means of an inert gas comprising: - a first drying chamber, placed above a first distribution grid, having an annular shape, where the polymer is maintained in fluidized conditions by a first stream of inert gas; - a second drying chamber comprising a tubular body running inside said first drying chamber and protruding downwardly below said first distribution grid.

    Abstract translation: 一种用于通过惰性气体干燥聚合物颗粒的装置,包括: - 第一干燥室,放置在第一分配栅格之上,具有环形形状,其中聚合物通过第一惰性气体流保持在流化条件下; - 第二干燥室,包括在所述第一干燥室内运行并在所述第一分配栅格的下方突出的管状体。

    GAS-PHASE PROCESS FOR PREPARING HETEROPHASIC PROPYLENE COPOLYMERS
    9.
    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

    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 POLYOLEFIN FINISHING
    10.
    发明申请
    PROCESS FOR THE POLYOLEFIN FINISHING 审中-公开
    聚烯烃饰面工艺

    公开(公告)号:WO2008080782A1

    公开(公告)日:2008-07-10

    申请号:PCT/EP2007/063783

    申请日:2007-12-12

    CPC classification number: C08F6/005 C08F6/02 C08L23/00

    Abstract: A process to perform the finishing of a polyolefin produced by polymerization of one or more α-olefins, the process comprising: (1) contacting a polyolefin discharged from a polymerization reactor with a counter-current flow of saturated steam, so as to strip away the gases from said polyolefin and to form condensed steam on the particles of said polyolefin; (2) drying the polyolefin particles by means of a counter-current flow of a dry inert gas, said flow of dry inert gas maintaining the polyolefin particles in fluidization conditions, the evaporation of said condensed steam cooling the polyolefin.

    Abstract translation: 对通过聚合一种或多种α-烯烃制备的聚烯烃进行精加工的方法,该方法包括:(1)使从聚合反应器排出的聚烯烃与逆流的饱和蒸汽接触,以剥离 来自所述聚烯烃的气体并在所述聚烯烃颗粒上形成冷凝蒸汽; (2)通过干燥惰性气体的逆流干燥聚烯烃颗粒,所述干燥惰性气体流将聚烯烃颗粒保持在流化条件下,冷凝聚乙烯的所述冷凝蒸汽的蒸发。

Patent Agency Ranking