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公开(公告)号：US20190339007A1
公开(公告)日：2019-11-07
申请号：US16076198
申请日：2017-02-14
Applicant: Basell Polyolefine GmbH
Inventor： Harald Prang , Michael Chatterjee , Reinhard Kuehl , Alexander Seifert
IPC: F26B3/084 , B01J8/00 , B01J8/26 , B01J8/18 , B01J8/36 , F26B21/14 , C08F6/24 , C08F6/00 , C08F10/02
Abstract: A method for preparing a dried powder is provided. The facility includes a first drying chamber having a heating element and a second drying chamber. A mixture of powder and diluent is introduced into the first drying chamber. A pre-dried powder is transferred from the first drying chamber into the second drying chamber. A dried powder, including a recirculated amount of powder and a discharge amount of powder, is formed in the second drying chamber. The recirculated amount of the dried powder is transferred by a conveyor device from the second drying chamber into the first drying chamber. The discharge amount of the dried powder is discharged from the second drying chamber.
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公开(公告)号：US09896520B2
公开(公告)日：2018-02-20
申请号：US15305047
申请日：2015-04-28
Applicant: Basell Polyolefine GmbH
Inventor： Reinhard Kuehl , Rodrigo Carvajal , Gerhardus Meier , Elke Damm , Phil Pyman
CPC classification number: C08F10/02 , C08F2400/02 , Y02P20/584 , C08F2/14 , C08F2/001
Abstract: The present disclosure generally relates to a slurry polymerization process for the preparation of polyethylene in the presence of a Ziegler catalyst and aluminum alkyl co-catalyst in at least one polymerization reactor, in which process suspension medium comprising a concentration of aluminum alkyl co-catalyst is recycled to the polymerization, the concentration of aluminum alkyl co-catalyst in the recycled suspension medium is determined; and the amount of fresh aluminum alkyl co-catalyst fed to the polymerization is adjusted to maintain a targeted aluminum alkyl co-catalyst concentration in the recycled suspension medium.
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公开(公告)号：US10899041B2
公开(公告)日：2021-01-26
申请号：US16507987
申请日：2019-07-10
Applicant: Basell Polyolefine GmbH
Inventor： Peter Kruempel , Elke Damm , Reinhard Kuehl , Phil Pyman
IPC: B29B7/72 , B29B7/00 , B29B9/06 , B29B7/90 , B29B7/88 , B29B7/48 , B29C48/285 , G05D11/13 , B29B7/42 , B29B7/60 , B29C48/04 , B29C48/00 , B29C48/92 , C08J3/20 , C08J3/22 , C08K3/04 , B29B9/12 , B29C48/03 , B29B7/38 , B29K23/00 , B29K105/16 , B29K507/04
Abstract: A process for continuously preparing a polyolefin composition made from or containing a bimodal or multimodal polyolefin and one or more additives in an extruder device equipped with at least one hopper. The process includes the steps of supplying a bimodal or multimodal polyolefin in form of a polyolefin powder to the hopper; (a) measuring the flow rate of the polyolefin powder or (b) measuring the flow rate of the prepared polyolefin pellets; supplying one or more additives to the hopper; adjusting the flow rates of the additives supplied to the hopper in response to the measured flow rate of the polyolefin powder or adjusting the flow rate of the polyolefin powder in response to the measured flow rate of the polyolefin pellets; melting and homogenizing the polyolefin powder and additives within the extruder device; and pelletizing the molten polyolefin composition into the polyolefin pellets.
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公开(公告)号：US20190337190A1
公开(公告)日：2019-11-07
申请号：US16423829
申请日：2019-05-28
Applicant: Basell Polyolefine GmbH
Inventor： Peter Kruempel , Harald Prang , Reinhard Kuehl , Elke Damm
IPC: B29B7/72 , B29B7/00 , B29B9/06 , B29B7/90 , B29B7/88 , B29B7/48 , B29C48/285 , G05D11/13 , B29B7/42 , B29B7/60 , B29C48/04 , C08J3/22 , C08K3/04 , B29C48/92 , C08J3/20 , B29C48/00 , B29B9/12
Abstract: A process for continuously preparing a polyolefin composition made from or containing a polyolefin and carbon black in an extruder device. The process includes the steps of supplying polyolefin in form of a polyolefin powder and carbon black to a mixing device; alternatively, (a) measuring the flow rate of the polyolefin powder supplied to the mixing device or (b) measuring the flow rate of the polyolefin pellets prepared in the extruder device; adjusting the flow rate of the carbon black to the mixing device in response to the measured flow rate of the polyolefin powder or adjusting the flow rate of the polyolefin powder to the mixing device in response to the measured flow rate of the polyolefin pellets; melting and homogenizing the mixture within the extruder device; and pelletizing the polyolefin composition into the polyolefin pellets.
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公开(公告)号：US20180022842A1
公开(公告)日：2018-01-25
申请号：US15503299
申请日：2015-08-13
Applicant: Basell Polyolefine GmbH
Inventor： Gerhardus Meier , Elke Damm , Reinhard Kuehl , Rodrigo Carvajal , Phil Pyman
IPC: C08F110/02
CPC classification number: C08F110/02 , C08F10/02 , C08F2500/05 , C08F2/001 , C08F2/18 , C08F2500/26
Abstract: A slurry polymerization process for the preparation of polyethylene in a reactor cascade of two or more polymerization reactors including the steps of feeding to a polymerization reactor amounts of ethylene, of a Ziegler catalyst, of fresh aluminum alkyl and of a diluent; feeding the slurry product withdrawn from the polymerization reactor to a second polymerization reactor; and feeding additional amounts of ethylene and of diluent wherein the ethylene is first passed through an ethylene purification unit, which reduces at least the concentration of carbon monoxide, carbon dioxide, oxygen, acetylene and water contained in the ethylene, before it is fed to the two or more polymerization reactors of the reactor cascade.
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Patent Agency Ranking
公开(公告)号：US20190329451A1
公开(公告)日：2019-10-31
申请号：US16507987
申请日：2019-07-10
Applicant: Basell Polyolefine GmbH
Inventor： Peter Kruempel , Elke Damm , Reinhard Kuehl , Phil Pyman
IPC: B29B7/72 , B29B7/00 , B29B9/06 , B29B7/90 , B29B7/88 , B29B7/48 , B29C48/285 , G05D11/13 , B29B7/42 , B29B7/60 , B29C48/04 , C08J3/22 , C08K3/04 , B29C48/92 , C08J3/20 , B29C48/00 , B29B9/12
Abstract: A process for continuously preparing a polyolefin composition made from or containing a bimodal or multimodal polyolefin and one or more additives in an extruder device equipped with at least one hopper. The process includes the steps of supplying a bimodal or multimodal polyolefin in form of a polyolefin powder to the hopper; (a) measuring the flow rate of the polyolefin powder or (b) measuring the flow rate of the prepared polyolefin pellets; supplying one or more additives to the hopper; adjusting the flow rates of the additives supplied to the hopper in response to the measured flow rate of the polyolefin powder or adjusting the flow rate of the polyolefin powder in response to the measured flow rate of the polyolefin pellets; melting and homogenizing the polyolefin powder and additives within the extruder device; and pelletizing the molten polyolefin composition into the polyolefin pellets.
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公开(公告)号：US09809659B2
公开(公告)日：2017-11-07
申请号：US15321152
申请日：2015-06-22
Applicant: Basell Polyolefine GmbH
Inventor： Giuseppe Penzo , Rodrigo Carvajal , Reinhard Kuehl , Elke Damm
Abstract: A process for the preparation of polyethylene by polymerizing in a slurry ethylene and optionally one or more C3 to C10 alpha-olefins in a reactor system comprising a polymerization reactor and one or more first heat exchangers located outside the polymerization reactor where the slurry in the polymerization reactor is cooled by withdrawing slurry from the polymerization reactor, cooling the slurry in the one or more first heat exchangers and returning the cooled slurry to the polymerization reactor, wherein the one or more first heat exchangers are cooled by a first coolant having a temperature of 29° C. or higher.
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公开(公告)号：US09790303B2
公开(公告)日：2017-10-17
申请号：US15321637
申请日：2015-06-22
Applicant: Basell Polyolefine GmbH
Inventor： Reinhard Kuehl , Rodrigo Carvajal , Gerhardus Meier , Elke Damm , Phil Pyman
IPC: C08F210/06 , C08F2/14 , C08F210/16 , C08F4/642 , C08F4/68
CPC classification number: C08F210/16 , C08F2/14 , C08F2400/02 , C08F2/00 , C08F2/001 , C08F210/14 , C08F210/08
Abstract: A method for controlling a slurry polymerization for the preparation of polyethylene, where the polyethylene is formed in a polymerization reactor comprising a vapor section by contacting a Ziegler-type catalyst, ethylene, and either hydrogen or, as comonomer(s), one or more C3 to C10 alpha-olefins or hydrogen and one or more C3 to C10 alpha-olefins, wherein the ethylene partial pressure is maintained by adjusting the flow rate of the catalyst to the polymerization reactor and the hydrogen/ethylene and comonomer/ethylene partial pressure ratios are maintained by adjusting the flow rates of hydrogen and/or of the one or more comonomers to the polymerization reactor.
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公开(公告)号：US11834531B2
公开(公告)日：2023-12-05
申请号：US17252190
申请日：2019-06-19
Applicant: Basell Polyolefine GmbH
Inventor： Elke Damm , Reinhard Kuehl , Rodrigo Carvajal
IPC: C08F2/01 , C08F2/14 , C08F2/18 , C08F6/24 , C08F210/02 , C08F210/14 , C08F210/16 , C08F2/00 , B01J19/18
CPC classification number: C08F2/01 , C08F2/001 , C08F2/14 , C08F2/18 , C08F6/24 , C08F210/02 , C08F210/14 , C08F210/16 , C08F2500/05
Abstract: A process for preparing a multimodal ethylene copolymer in suspension in a reactor cascade including a first polymerization reactor and subsequent polymerization reactor(s) including polymerizing ethylene and C3-C12-1-alkenes and forming a suspension of multimodal ethylene copolymer particles in a suspension medium made from or containing a diluent, transferring the suspension into a separator, wherein the suspension is separated into multimodal ethylene copolymer particles and recovered suspension medium, purifying part of the recovered suspension medium for producing purified components of the recovered suspension medium, and recycling part of the purified components of the recovered suspension medium to the first polymerization reactor of the reactor cascade, wherein the purified components of the recovered suspension medium recycled to the first polymerization reactor and made from or containing the diluent, undergo catalytic hydrogenation before being introduced into the first polymerization reactor.
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公开(公告)号：US20170259458A1
公开(公告)日：2017-09-14
申请号：US15532016
申请日：2015-12-03
Applicant: Basell Polyolefine GmbH
Inventor： Peter Kruempel , Elke Damm , Reinhard Kuehl , Phil Pyman
IPC: B29B7/60 , B29B7/48 , B29B7/72 , C08K3/04 , B29C47/10 , B29B7/88 , B29C47/92 , C08J3/22 , B29B7/00 , B29C47/00
CPC classification number: B29B7/728 , B29B7/005 , B29B7/007 , B29B7/38 , B29B7/42 , B29B7/48 , B29B7/603 , B29B7/88 , B29B7/90 , B29B9/06 , B29B9/065 , B29B9/12 , B29C48/022 , B29C48/03 , B29C48/04 , B29C48/286 , B29C48/288 , B29C48/298 , B29C48/92 , B29C2948/92104 , B29C2948/926 , B29C2948/92828 , B29K2023/06 , B29K2023/065 , B29K2105/16 , B29K2507/04 , C08J3/203 , C08J3/22 , C08J2323/06 , C08J2323/08 , C08K3/04 , G05D11/132
Abstract: A process for continuously preparing a polyolefin composition made from or containing a bimodal or multimodal polyolefin and one or more additives in an extruder device equipped with at least one hopper. The process includes the steps of supplying a bimodal or multimodal polyolefin in form of a polyolefin powder to the hopper; (a) measuring the flow rate of the polyolefin powder or (b) measuring the flow rate of the prepared polyolefin pellets; supplying one or more additives to the hopper; adjusting the flow rates of the additives supplied to the hopper in response to the measured flow rate of the polyolefin powder or adjusting the flow rate of the polyolefin powder in response to the measured flow rate of the polyolefin pellets; melting and homogenizing the polyolefin powder and additives within the extruder device; and pelletizing the molten polyolefin composition into the polyolefin pellets.
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