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公开(公告)号：WO2018210780A1
公开(公告)日：2018-11-22
申请号：PCT/EP2018/062433
申请日：2018-05-15
摘要： Fluidized-bed reactor for the gas-phase polymerization of olefins comprising a gas distribution grid installed in a lower part of the fluidized-bed reactor and a gas recycle line, which is equipped with a compressor and a heat exchanger and which is connected at the upper end with the top of the fluidized-bed reactor, wherein the gas recycle line splits at the lower end in at least two substantially horizontal branches which are connected tangentially with the fluidized-bed reactor below the gas distribution grid and a process for preparing an olefin polymer carried out in the fluidized-bed reactor.
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公开(公告)号：WO2008015228A2
公开(公告)日：2008-02-07
申请号：PCT/EP2007/057953
申请日：2007-08-01
发明人： BAITA, Pietro , PENZO, Giuseppe , MEI, Gabriele
CPC分类号： B01J8/24 , B01J8/003 , B01J2219/00006 , C08F6/005 , C08F6/02 , C08F210/16 , C08L23/00 , C08F210/14 , C08F2500/12 , C08F2500/24
摘要： A process to perform the finishing of polyolefins produced by gas-phase catalytic polymerization of one or more α-olefms in the presence of a polymerization diluent selected from a C 3 -C 5 alkane, wherein the polyolefm granules discharged from the gas-phase reactor are subjected to: (1) a first degassing step in which said polyolefm is counter-currently contacted with a gaseous stream containing at least 85% by mol of a stripping agent selected from a C 3 -C 5 alkane, said gaseous stream being continuously derived from the monomer recovery section of the polymerization plant; (2) a second degassing step in which said polyolefm is counter-currently contacted with steam, the amount of steam being from 10 to 200 Kg per 1000 kg of polyolefin.
摘要翻译： 在聚合稀释剂存在下进行通过气相催化聚合一种或多种α-烯烃生产的聚烯烃的精制方法，所述聚合稀释剂选自C 3 - 其中从气相反应器排出的聚烯烃颗粒经历：（1）第一脱气步骤，其中所述聚烯烃与包含至少85的气流逆流接触 摩尔％的选自C 3 -C 5链烷烃的汽提剂，所述气体物流连续得自聚合装置的单体回收部分; （2）第二脱气步骤，其中所述聚烯烃与蒸汽逆流接触，蒸汽量为每1000kg聚烯烃10至200Kg。
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3.发明申请
公开(公告)号：WO2014184155A1
公开(公告)日：2014-11-20
申请号：PCT/EP2014/059685
申请日：2014-05-13
发明人： MEI, Gabriele , BAITA, Pietro , MARTURANO, Lorella , MAZZUCCO, Antonio , PICA, Roberta , MEIER, Gerhardus , SCHUELLER, Ulf
IPC分类号： C08F2/34 , C08F110/02
CPC分类号： C08F110/02 , C08F2/001 , C08F2/002 , C08F4/654 , C08F4/6543 , C08F4/6548 , C08F4/655 , C08F4/6565 , C08F10/02 , C08F2/34 , C08F2500/18 , C08F2500/24 , C08F4/6492 , C08F4/6425
摘要： A process for the gas-phase polymerization of ethylene or a mixture of ethylene and one or more 1-olefins in the presence of a polymerization catalyst system comprising the steps a) feeding a solid catalyst component, which was obtained by contacting at least a magnesium compound and a titanium compound, to a continuously operated apparatus and contacting the solid catalyst component with an aluminum alkyl compound at a temperature of from 0°C to 70°C in a way that the mean residence time of the solid catalyst component in contact with the aluminum alkyl compound is from 5 to 300 minutes; b) transferring the catalyst component formed in step a) into another continuously operated apparatus and prepolymerizing it with ethylene or a mixture of ethylene and one or more 1-olefins in suspension at a temperature of from 10°C to 80° forming polymer in an amount of from 0.2 to 25 g polymer/g of solid catalyst component in a way that the mean residence time of the solid catalyst component in the apparatus is from 5 minutes to 3 hours; and c) transferring the prepolymerized catalyst component formed in step b) into a gas-phase polymerization reactor and polymerizing ethylene or a mixture of ethylene and one or more 1-olefins in the presence of the prepolymerized catalyst component at temperatures of from 40°C to 120°C and pressures of from 0.1 to 10 MPa.
摘要翻译： 一种在聚合催化剂体系存在下乙烯或乙烯与一种或多种1-烯烃的混合物进行气相聚合的方法，包括以下步骤：a）加入固体催化剂组分，所述固体催化剂组分通过使至少一种镁 化合物和钛化合物连接到连续操作的装置上，并使固体催化剂组分与烷基铝化合物在0℃至70℃的温度下接触，使得固体催化剂组分的平均停留时间与 铝烷基化合物为5〜300分钟; b）将步骤a）中形成的催化剂组分转移到另一个连续操作的装置中，并将其与乙烯或乙烯和一种或多种1-烯烃的混合物在10℃至80℃的温度下预聚合形成聚合物 以固体催化剂组分在设备中的平均停留时间为5分钟至3小时的方式，其量为0.2至25g聚合物/ g固体催化剂组分; 和c）将步骤b）中形成的预聚合的催化剂组分转移到气相聚合反应器中，并在预聚合的催化剂组分存在下在40℃的温度下聚合乙烯或乙烯和一种或多种1-烯烃的混合物 至120℃，压力为0.1至10MPa。
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公开(公告)号：WO2018115236A1
公开(公告)日：2018-06-28
申请号：PCT/EP2017/084010
申请日：2017-12-21
发明人： MEI, Gabriele , COVEZZI, Massimo , MEIER, Gerhardus , MAZZUCCO, Antonio , BAITA, Pietro , SCHUELLER, Ulf , MARTURANO, Lorella , BALESTRA, Enrico
IPC分类号： C08F2/01 , C08F2/34 , C08F110/02 , C08F110/06
摘要： A process for starting a multizone circulating reactor containing no polyolefin particles, comprising the steps of conveying gas through the reactor and the gas recycle line, feeding a particulate material comprising a polymerization catalyst and optionally polyolefin into the reactor, controlling the gas flow in a vertical reactor zone equipped with a throttling valve at the bottom so that the upwards gas velocity in the bottom part of this reaction zone is lower than the terminal free-fall velocity of the particulate material fed into the reactor, and, after the weight of the particulate polyolefin in this reactor zone is higher than the drag force of the upward moving gas, controlling the circulation rate of the polymer particles within the multizone circulating reactor by adjusting the opening of the throttling valve and adjusting the flow rate of a dosing gas.
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5.发明申请OLEFIN POLYMERIZATION PROCESS IN A GAS-PHASE REACTOR COMPRISING A RISER UNIT AND A DOWNCOMER 审中-公开气相反应器中的烯烃聚合工艺包括提升装置和减压装置
公开(公告)号：WO2018087214A1
公开(公告)日：2018-05-17
申请号：PCT/EP2017/078729
申请日：2017-11-09
发明人： MEIER, Gerhardus , SCHUELLER, Ulf , MEI, Gabriele , COVEZZI, Massimo , BAITA, Pietro , MARTURANO, Lorella
摘要： A process for preparing an ethylene polymer comprising homopolymerizing ethylene or copolymerizing ethylene with one or more comonomers in a gas-phase polymerization reactor comprising a riser unit, in which growing polymer particles flow upwards under fluidization, fast fluidization or transport conditions, and a downcomer, in which growing polymer particles flow downward in a densified form, wherein the hold-up of polymer particles in the downcomer is from 55 wt.% to 80 wt.% of the total hold-up of polymer particles in the gas-phase polymerization reactor.
摘要翻译： 一种制备乙烯聚合物的方法，该方法包括在气相聚合反应器中均聚乙烯或使乙烯与一种或多种共聚单体共聚合，所述气相聚合反应器包括提升器单元，其中生长的聚合物颗粒在流化下向上流动，快速流化 或运输条件的降液管中，其中生长的聚合物颗粒以致密形式向下流动，其中聚合物颗粒在降液管中的滞留量为聚合物总滞留量的55重量％至80重量％ 颗粒在气相聚合反应器中。
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公开(公告)号：WO2013083548A2
公开(公告)日：2013-06-13
申请号：PCT/EP2012/074324
申请日：2012-12-04
发明人： COVEZZI, Massimo , PENZO, Giuseppe , MEI, Gabriele , MEI, Giulia , BAITA, Pietro , MEIER, Gerhardus , DE LUCIA, Antonio , SCHUELLER, Ulf , FERRARO, Gianpiero
IPC分类号： C08F10/00
CPC分类号： C08F110/02 , C08F2/001 , C08F2/34 , C08F10/00 , C08F10/02 , C08F2500/12 , C08F2500/18 , C08F2500/24 , C08F2/00 , C08F2/01
摘要： Process for transferring polyolefin particles from a first gas-phase polymerization reactor to a second gas-phase polymerization reactor in a multistage polymerization of olefins carried out in at least two serially connected gas-phase polymerization reactors, wherein the first gas-phase reactor is a fluidized-bed reactor comprising a gas distribution grid and a settling pipe, which is integrated with its upper opening into the distribution grid and contains a bed of polyolefin particles which moves from top to bottom of the settling pipe, the process comprising the steps of introducing a fluid into the settling pipe in an amount that an upward stream of the fluid is induced in the bed of polyolefin particles above the fluid introduction point; withdrawing polyolefin particles from the lower end of the settling pipe; and transferring the withdrawn polyolefin particles into the second gas-phase polymerization reactor, process for polymerizing olefins comprising such a process for transferring polyolefin particles, reactor suitable as first gas-phase polymerization reactor in the process for polymerizing olefins and process for discharging polyolefin particles from a fluidized-bed reactor.
摘要翻译： 将聚烯烃颗粒从第一气相聚合反应器转移到第二气相聚合反应器中在至少两个串联连接的气相聚合反应器中进行的烯烃的多级聚合中的方法，其中 第一气相反应器是流化床反应器，其包括气体分配格栅和沉降管，沉降管与其上部开口一体形成分配格栅并且包含聚合物颗粒床，所述聚合物颗粒床从沉降管的顶部移动到底部 所述方法包括以下步骤：将流体引入沉降管中的量为在流体引入点上方的聚烯烃颗粒床中引起流体的向上流; 从沉降管的下端排出聚烯烃颗粒; 和将取出的聚烯烃颗粒转移到第二气相聚合反应器中的方法，包括这种转移聚烯烃颗粒的方法的烯烃聚合方法，适合作为烯烃聚合方法中的第一气相聚合反应器的反应器以及从 一个流化床反应器。
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公开(公告)号：WO2005058982A1
公开(公告)日：2005-06-30
申请号：PCT/EP2004/013372
申请日：2004-11-24
申请人： BASELL POLYOLEFINE GMBH , BAITA, Pietro , COVEZZI, Massimo , MEI, Gabriele , MORINI, Giampiero , PATER, Joachim, T., M.
IPC分类号： C08F10/02
CPC分类号： C08F10/00 , C08F10/02 , C08F210/16 , C08F4/6494 , C08F4/651 , C08F2/001 , C08F210/14 , C08F2500/12 , C08F2500/08 , C08F2500/07 , C08F210/08
摘要： A process for preparing a broad molecular weight polyethylene carried out in the presence of a catalyst system comprising (i) a solid catalyst component comprising Mg, Ti, halogen, and optionally an internal electron donor compound, and (ii) an Al-alkyl cocatalyst said process comprising at least two step of polymerization (a) and (b), in which, - in a first step (a) ethylene is polymerized in the presence of a molecular weight regulator in order to produce a ethylene (co)polymer, and in a further step (b), which is carried out in the presence of an external electron donor compound added to this polymerization step as a fresh reactant, ethylene is copolymerized with an alpha olefin of formula CH2=CHR, in which R is a C1-C20 hydrocarbon group, to produce an ethylene copolymer having a molecular weight higher than that of the copolymer produced in step (b).
摘要翻译： 一种制备在催化剂体系存在下进行的宽分子量聚乙烯的方法，包括（i）包含Mg，Ti，卤素和任选的内电子给体化合物的固体催化剂组分，和（ii）Al-烷基助催化剂 所述方法包括至少两个聚合步骤（a）和（b）），其中 - 在第一步（a）中，在分子量调节剂存在下聚合乙烯以产生乙烯（共）聚合物， 并且在另外的步骤（b）中，其在作为新的反应物加入到该聚合步骤中的外部电子给体化合物存在下进行，乙烯与式CH 2 = CHR的α-烯烃共聚，其中R是 C1-C20烃基，得到分子量高于步骤（b）中制备的共聚物的乙烯共聚物。
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8.发明申请
公开(公告)号：WO2019025560A1
公开(公告)日：2019-02-07
申请号：PCT/EP2018/071031
申请日：2018-08-02
发明人： MEI, Gabriele , MEI, Giulia , PENZO, Giuseppe
摘要： A process for preparing an olefin polymer, comprising the steps of forming a particulate olefin polymer in a gas-phase polymerization reactor in the presence of a C 3 -C 5 alkane as polymerization diluent, separating discharged polyolefin particles from concomitantly discharged gas at a pressure from 1 to 2.2 MPa, degassing the polyolefin particles at a pressure from 0.1 to 0.4 MPa with a gas comprising a C 3 -C 5 alkane; and transferring the separated gas and the gas from the degassing to a work-up unit operated at a pressure from 0.001 to 0.2 MPa below the pressure of the separation, wherein the gas for degassing is continuously received from the work-up unit.
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公开(公告)号：WO2014184152A2
公开(公告)日：2014-11-20
申请号：PCT/EP2014/059680
申请日：2014-05-13
IPC分类号： C08F210/00
CPC分类号： C08F110/02 , B01J8/0025 , B01J8/1863 , B01J8/1872 , B01J8/26 , B01J19/245 , B01J2208/00274 , B01J2208/00292 , B01J2208/00557 , B01J2208/00752 , B01J2208/00761 , B01J2208/00769 , B01J2208/00991 , B01J2219/24 , C08F10/00 , C08F2/001 , C08F2/34 , C08F2/01 , C08F2500/12 , C08F2500/07 , C08F2500/24 , C08F2500/18
摘要： A process for polymerizing olefins at temperatures of from 30°C to 140°C and pressures of from 1.0 MPa to 10 MPa in the presence of a polymerization catalyst in a multistage polymerization of olefins in at least two serially connected gas-phase polymerization reactors, the process for transferring polyolefin particles from a first gas-phase polymerization reactor to a second gas-phase polymerization reactor comprising the steps of a) discharging polyolefin particles from the first gas-phase polymerization reactor into a separation chamber in which the polyolefin particles are separated from concomitantly discharged reaction gas, the separation chamber being at a lower pressure than the pressure in the first gas-phase polymerization reactor; b) transferring the polyolefin particles within the separation chamber into a lower part of the separation chamber which contains a bed of polyolefin particles which moves from top to bottom of this part of the separation chamber and into which a fluid is introduced in an amount that an upward stream of the fluid in the bed of polyolefin particles above the fluid introduction point is induced, c) withdrawing polyolefin particles from the lower end of said lower part and transferring them to one of at least two lock hoppers working intermittently in parallel; and d) simultaneously pressurizing another of the at least two lock hoppers working intermittently by means of a gas comprising reaction gas coming from the second gas-phase polymerization reactor, and apparatus for the multistage polymerization of olefins, comprising at least two serially connected gas-phase polymerization reactors and a device for transferring polyolefin particles from an up-stream gas-phase polymerization reactor to a downstream gas-phase polymerization reactor, the transferring device comprising - a gas/solid separation chamber placed downstream of the upstream gas-phase polymerization which gas/solid separation chamber is equipped at a lower part with an inlet for introducing a fluid, and - connected to the gas/solid separation chamber at least two lock hoppers, placed in a parallel arrangement, each connected to the downstream gas-phase polymerization reactor.
摘要翻译： 在聚合催化剂的存在下，在烯烃的多级聚合中，在30℃至140℃的温度和1.0MPa至10MPa的压力下，烯烃在至少两个 串联连接的气相聚合反应器中，将聚烯烃颗粒从第一气相聚合反应器转移到第二气相聚合反应器的方法包括以下步骤：a）将聚烯烃颗粒从第一气相聚合反应器排出到分离器 其中聚烯烃颗粒与同时排出的反应气体分离，分离室的压力低于第一气相聚合反应器中的压力; b）将分离室内的聚烯烃颗粒转移到分离室的下部，该分离室包含聚烯烃颗粒床，所述聚烯烃颗粒床从该分离室的该部分的顶部移动到底部并且以这样的量引入流体， 诱导在流体引入点之上的聚烯烃颗粒床中的流体的向上流，c）从所述下部的下端抽出聚烯烃颗粒，并将它们传送到并行间歇工作的至少两个闭锁料斗中的一个; 和d）同时通过包含来自第二气相聚合反应器的反应气体的气体对间歇工作的至少两个闭锁料斗中的另一个进行加压，以及用于烯烃多级聚合的设备，其包括至少两个串联连接的气 - 以及用于将聚烯烃颗粒从上游气相聚合反应器转移到下游气相聚合反应器的装置，所述转移装置包括： - 位于上游气相聚合反应器下游的气/固分离室，其中 气体/固体分离室在下部装备有用于引入流体的入口，并且 - 与气体/固体分离室连接至少两个平行布置的锁定料斗，每个锁定料斗均连接到下游气相聚合 反应器中。
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公开(公告)号：WO2012041813A1
公开(公告)日：2012-04-05
申请号：PCT/EP2011/066682
申请日：2011-09-26
申请人： BASELL POLYOLEFINE GMBH , BAITA, Pietro , BRITA, Diego , FERRARI, Paolo , MAVRIDIS, Harilaos , MEI, Gabriele , PICA, Roberta , WIESECKE, Jens
发明人： BAITA, Pietro , BRITA, Diego , FERRARI, Paolo , MAVRIDIS, Harilaos , MEI, Gabriele , PICA, Roberta , WIESECKE, Jens
CPC分类号： C08F10/02 , C08F10/00 , C08F210/16 , C08F210/08 , C08F2500/08 , C08F2500/12 , C08F2500/26 , C08F4/6494 , C08F2/005 , C08F210/14
摘要： Extruded articles, particularly films, comprising an ethylene polymer obtained by a polymerization process carried out in the presence the products obtained by contacting the following components: (a) a solid catalyst component comprising a magnesium halide, a titanium compound having at least a Ti-halogen bond and optionally one or more internal electron donor compounds, (b) an aluminum hydrocarbyl compound, (c) optionally an external electron donor compound, and (d) a polyalcohol partially esterified with carboxylic acids with alkyl groups having at least 10 carbon atoms.
摘要翻译： 挤出制品，特别是包含通过聚合方法获得的乙烯聚合物的薄膜，所述聚合方法在存在下通过接触下列组分获得的产物进行：（a）固体催化剂组分，其包含卤化镁，至少具有Ti- 卤素键和任选的一种或多种内部电子给体化合物，（b）铝烃基化合物，（c）任选的外部电子给体化合物，和（d）与具有至少10个碳原子的烷基的羧酸部分酯化的多元醇 。
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