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公开(公告)号：US20180178180A1
公开(公告)日：2018-06-28
申请号：US15853072
申请日：2017-12-22
Applicant: Basell Polyolefine GmbH
Inventor： Gabriele Mei , Massimo Covezzi , Gerhardus Meier , Antonio Mazzucco , Pietro Baita , Ulf Schueller , Lorella Marturano , Enrico Balestra
IPC: B01J8/28 , C08F110/02 , C08F110/06 , B01J8/18
Abstract: 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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公开(公告)号：US09932465B1
公开(公告)日：2018-04-03
申请号：US15560424
申请日：2016-03-23
Applicant: Basell Polyolefine GmbH
Inventor： Gerd Mannebach , Bernd Lothar Marczinke , Gerhardus Meier , Ulf Schueller , Shahram Mihan , Andreas Maus , Pietro Baita , Maria Di Diego , Lorella Marturano
IPC: C08F2/44 , C08F2/38 , C08F10/02 , C08F210/16 , C08L23/06 , C08L71/02 , C08K5/00 , C08F2/34 , B01J8/24 , B01J8/22
CPC classification number: C08L23/06 , B01J8/224 , B01J8/24 , C08F2/34 , C08F2/44 , C08F10/00 , C08F10/02 , C08F210/16 , C08F2500/04 , C08F2500/07 , C08F2500/12 , C08K5/0075 , C08L71/02 , C08F2/005 , C08F110/02 , C08F2/001
Abstract: A process for preparing a polyolefin, including polymerizing olefins in the presence of an antistatic agent made from or containing an alkylene oxide derived polymer made from or containing in average from about 10 to about 200 repeating units —(CH2—CHR—O)— with R being hydrogen or an alkyl group having from 1 to 6 carbon atoms, wherein the alkylene oxide derived polymer is a random copolymer of ethylene oxide and other alkylene oxides and a ratio of n:m is in the range of from 6:1 to 1:1, wherein (n) is the average number of repeating units —(CH2—CH2—O)— derived from ethylene oxide and (m) is the average number of repeating units —(CH2—CHR′—O)— derived from the other alkylene oxides with R′ being an alkyl group having from 1 to 6 carbon atoms, and the end groups of the alkylene oxide derived polymer are —OH groups.
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3.发明授权公开(公告)号：US10968291B2
公开(公告)日：2021-04-06
申请号：US16348636
申请日：2017-11-09
Applicant: Basell Polyolefine GmbH
Inventor： Gerhardus Meier , Ulf Schueller , Gabriele Mei , Massimo Covezzi , Pietro Baita , Lorella Marturano
Abstract: A process for preparing an ethylene polymer including the step of homopolymerizing ethylene or copolymerizing ethylene with one or more comonomers in a gas-phase polymerization reactor including a riser unit wherein growing polymer particles flow upwards under fluidization, fast fluidization or transport conditions and a downcomer wherein 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.
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公开(公告)号：US20180072876A1
公开(公告)日：2018-03-15
申请号：US15560424
申请日：2016-03-23
Applicant: Basell Polyolefine GmbH
Inventor： Gerd Mannebach , Bernd Lothar Marczinke , Gerhardus Meier , Ulf Schueller , Shahram Mihan , Andreas Maus , Pietro Baita , Maria Di Diego , Lorella Marturano
CPC classification number: C08L23/06 , B01J8/224 , B01J8/24 , C08F2/34 , C08F2/44 , C08F10/00 , C08F10/02 , C08F210/16 , C08F2500/04 , C08F2500/07 , C08F2500/12 , C08K5/0075 , C08L71/02 , C08F2/005 , C08F110/02 , C08F2/001
Abstract: A process for preparing a polyolefin, including polymerizing olefins in the presence of an antistatic agent made from or containing an alkylene oxide derived polymer made from or containing in average from about 10 to about 200 repeating units —(CH2—CHR—O)— with R being hydrogen or an alkyl group having from 1 to 6 carbon atoms, wherein the alkylene oxide derived polymer is a random copolymer of ethylene oxide and other alkylene oxides and a ratio of n:m is in the range of from 6:1 to 1:1, wherein (n) is the average number of repeating units —(CH2—CH2—O)— derived from ethylene oxide and (m) is the average number of repeating units —(CH2—CHR′—O)— derived from the other alkylene oxides with R′ being an alkyl group having from 1 to 6 carbon atoms, and the end groups of the alkylene oxide derived polymer are —OH groups.
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Patent Agency Ranking
公开(公告)号：US09873754B2
公开(公告)日：2018-01-23
申请号：US14891506
申请日：2014-05-13
Applicant: Basell Polyolefine GmbH
Inventor： Gabriele Mei , Pietro Baita , Lorella Marturano , Antonio Mazzucco , Roberta Pica , Gerhardus Meier , Ulf Schueller
CPC classification number: 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
Abstract: 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.
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公开(公告)号：US10471407B2
公开(公告)日：2019-11-12
申请号：US15853072
申请日：2017-12-22
Applicant: Basell Polyolefine GmbH
Inventor： Gabriele Mei , Massimo Covezzi , Gerhardus Meier , Antonio Mazzucco , Pietro Baita , Ulf Schueller , Lorella Marturano , Enrico Balestra
IPC: B01J8/28 , B01J8/18 , C08F110/02 , C08F110/06
Abstract: 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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7.发明申请公开(公告)号：US20160108148A1
公开(公告)日：2016-04-21
申请号：US14891506
申请日：2014-05-13
Applicant: BASELL POLYOLEFINE GMBH
Inventor： Gabriele Mei , Pietro Baita , Lorella Marturano , Antonio Mazzucco , Roberta Pica , Gerhardus Meier , Ulf Schueller
IPC: C08F110/02
CPC classification number: 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
Abstract: 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.
Abstract translation: 一种在聚合催化剂体系存在下乙烯或乙烯与一种或多种烯烃的混合物进行气相聚合的方法，包括步骤a）进料固体催化剂组分，该固体催化剂组分是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接触 烷基铝化合物为5至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种烯烃在悬浮液中的混合物在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烯烃的混合物 至120℃，压力为0.1至10MPa。
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公开(公告)号：US20230364574A1
公开(公告)日：2023-11-16
申请号：US18027882
申请日：2021-09-21
Applicant: Basell Polyolefine GmbH
Inventor： Tiziana Caputo , Pietro Baita , Maria Di Diego , Lorella Marturano , Antonio Mazzucco , Gabriele Mei , Giulia Mei , Roberta Pica
CPC classification number: B01J8/10 , B01J8/085 , B01J8/003 , C08F2/01 , C08F4/61912 , C08F110/02 , B01J2208/00752 , B01J2208/00761
Abstract: An apparatus for polymerizing olefins including a polymerization reactor and a vessel system for pre-activating a solid catalyst component, wherein the vessel system is arranged upstream of the polymerization reactor. The vessel system includes a contacting vessel which includes a main portion, a base portion, a head portion, an inlet, an outlet, and a stirrer positioned within the contacting vessel, wherein the ratio (H/D) of the height (H) of the main portion to the diameter (D) of the main portion is 1.8 or greater. The stirrer is located at a position between the inlet and the outlet.
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9.发明申请公开(公告)号：US20190322775A1
公开(公告)日：2019-10-24
申请号：US16348636
申请日：2017-11-09
Applicant: Basell Polyolefine GmbH
Inventor： Gerhardus Meier , Ulf Schueller , Gabriele Mei , Massimo Covezzi , Pietro Baita , Lorella Marturano
Abstract: A process for preparing an ethylene polymer including the step of homopolymerizing ethylene or copolymerizing ethylene with one or more comonomers in a gas-phase polymerization reactor including a riser unit wherein growing polymer particles flow upwards under fluidization, fast fluidization or transport conditions and a downcomer wherein 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.
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