BR0115788A - Processo de polimerização - Google Patents

Processo de polimerização

Info

Publication number
BR0115788A
BR0115788A BR0115788-4A BR0115788A BR0115788A BR 0115788 A BR0115788 A BR 0115788A BR 0115788 A BR0115788 A BR 0115788A BR 0115788 A BR0115788 A BR 0115788A
Authority
BR
Brazil
Prior art keywords
recycle gas
gas
monomer
reactor
recycle
Prior art date
Application number
BR0115788-4A
Other languages
English (en)
Inventor
Simon Mawson
John Francis Szul
Mark Gregory Goode
Clark C Williams
Original Assignee
Univation Tech Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Univation Tech Llc filed Critical Univation Tech Llc
Publication of BR0115788A publication Critical patent/BR0115788A/pt

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
    • B01J8/1818—Feeding of the fluidising gas
    • B01J8/1827—Feeding of the fluidising gas the fluidising gas being a reactant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J4/00—Feed or outlet devices; Feed or outlet control devices
    • B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
    • B01J4/002—Nozzle-type elements
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
    • B01J2219/00105—Controlling the temperature by indirect heating or cooling employing heat exchange fluids part or all of the reactants being heated or cooled outside the reactor while recycling
    • B01J2219/00108—Controlling the temperature by indirect heating or cooling employing heat exchange fluids part or all of the reactants being heated or cooled outside the reactor while recycling involving reactant vapours
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F110/00—Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F110/02—Ethene
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S526/00—Synthetic resins or natural rubbers -- part of the class 520 series
    • Y10S526/901—Monomer polymerized in vapor state in presence of transition metal containing catalyst

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Polymerisation Methods In General (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Abstract

"PROCESSO DE POLIMERIZAçãO". A presente invenção refere-se a um método para polimerizar monómero compreendendo contato de um ou mais monómero(s) com um sistema de catalisador em um reator de fase de gás tendo um pleno e um sistema de reciclagem para remoção de um gás de reciclagem e monómero(s) não-reagidos do reator e retorno do gás de reciclagem e monómero(s) frescos para o reator, o método compreendendo as etapas de (a) resfriamento do gás de reciclagem para formar um gás de reciclagem resfriado; (b) opcionalmente combinação do gás de reciclagem resfriado com gás de reciclagem adicional; e (c) injeção do gás de reciclagem resfriado no reator de fase de gás através do pleno.
BR0115788-4A 2000-11-30 2001-11-07 Processo de polimerização BR0115788A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/727,237 US6489408B2 (en) 2000-11-30 2000-11-30 Polymerization process
PCT/US2001/051006 WO2002038629A2 (en) 2000-11-30 2001-11-07 Polymerization process

Publications (1)

Publication Number Publication Date
BR0115788A true BR0115788A (pt) 2004-01-06

Family

ID=24921868

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0115788-4A BR0115788A (pt) 2000-11-30 2001-11-07 Processo de polimerização

Country Status (11)

Country Link
US (1) US6489408B2 (pt)
EP (1) EP1341825B1 (pt)
JP (1) JP3668226B2 (pt)
CN (1) CN1235918C (pt)
AT (1) ATE298351T1 (pt)
AU (2) AU2002231351B2 (pt)
BR (1) BR0115788A (pt)
CA (1) CA2429054C (pt)
DE (1) DE60111644T2 (pt)
ES (1) ES2243589T3 (pt)
WO (1) WO2002038629A2 (pt)

Families Citing this family (92)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1348720B1 (en) * 2002-03-29 2004-12-29 Mitsui Chemicals, Inc. Process for producing olefinic polymer
DE10317533A1 (de) * 2003-04-16 2004-11-04 Basell Polyolefine Gmbh Verfahren zur diskontinuierlichen Katalysatordosierung in einen Gasphasenwirbelschichtreaktor
US7094848B2 (en) 2003-05-13 2006-08-22 Exxonmobil Chemical Patents Inc. Olefin polymerization catalyst system
US6933353B2 (en) * 2003-07-07 2005-08-23 Equistar Chemicals, Lp Olefin polymerization process
US20050137364A1 (en) * 2003-12-23 2005-06-23 Univation Technologies, Llc Condensing mode operation of gas-phase polymerization reactor
US20050182207A1 (en) * 2003-12-23 2005-08-18 Diwaker Singh Gas-phase process
AU2005262843B2 (en) * 2004-06-21 2007-11-15 Univation Technologies, Llc Methods for producing polymers with control over composition distribution
US7157531B2 (en) * 2004-06-21 2007-01-02 Univation Technologies, Llc Methods for producing polymers with control over composition distribution
WO2008042078A1 (en) * 2006-10-03 2008-04-10 Univation Technologies, Llc Effervescent nozzle for catalyst injection
EP3467077A1 (en) * 2006-10-03 2019-04-10 Univation Technologies, LLC System for olefin polymerization
US8841391B2 (en) 2008-10-03 2014-09-23 Ineos Sales (Uk) Limited Process for the introduction of a polymerisation catalyst into a gas-phase fluidised bed
EP2172262A1 (en) * 2008-10-03 2010-04-07 Ineos Europe Limited Process
WO2010080871A1 (en) 2009-01-08 2010-07-15 Univation Technologies, Llc Additive for gas phase polymerization processes
US20110256632A1 (en) 2009-01-08 2011-10-20 Univation Technologies, Llc Additive for Polyolefin Polymerization Processes
EP2516489B1 (en) 2009-12-21 2014-07-02 W.R. Grace & CO. - CONN. Gas-phase polymerization process having multiple flow regimes
CN103347905B (zh) 2010-12-22 2015-12-16 尤尼威蒂恩技术有限责任公司 用于聚烯烃聚合方法的添加剂
US10647790B2 (en) 2011-06-30 2020-05-12 W. R. Grace & Co.-Conn. Process for gas-phase polymerization having high bed bulk density
JP6154396B2 (ja) 2011-11-30 2017-06-28 ユニベーション・テクノロジーズ・エルエルシー 触媒送出方法及びシステム
CA2886967C (en) 2012-11-01 2021-06-01 Univation Technologies, Llc Mixed compatible ziegler-natta/chromium catalysts for improved polymer products
WO2014074981A1 (en) 2012-11-12 2014-05-15 Univation Technologies, Llc Recycle gas cooler systems for gas-phase polymerization processes
US10076737B2 (en) 2013-05-06 2018-09-18 Liang-Yuh Chen Method for preparing a material of a battery cell
FI20145530A7 (fi) * 2014-06-09 2015-12-10 Canatu Oy Katalyyttihiukkanen ja menetelmä sen valmistamiseksi
CA2974122C (en) 2015-01-21 2023-09-19 Univation Technologies, Llc Methods for gel reduction in polyolefins
US10471641B2 (en) 2015-01-21 2019-11-12 Univation Technologies, Llc Methods for controlling polymer chain scission
US10711072B2 (en) 2015-04-17 2020-07-14 Univation Technologies, Llc Methods and systems for olefin polymerization
BR112019008131B1 (pt) 2016-11-08 2022-12-20 Univation Technologies, Llc Polietileno bimodal
CN109890855B (zh) 2016-11-08 2022-08-09 尤尼威蒂恩技术有限责任公司 聚乙烯组合物
CA3043015A1 (en) 2016-11-08 2018-05-17 Univation Technologies, Llc Polyethylene composition
CN111051353B (zh) 2017-08-28 2022-09-09 尤尼威蒂恩技术有限责任公司 双峰聚乙烯
CA3074827A1 (en) 2017-09-11 2019-03-14 Univation Technologies, Llc Carbon black-containing bimodal polyethylene composition
SG11202003356WA (en) 2017-10-27 2020-05-28 Univation Tech Llc Polyethylene copolymer resins and films
CN111868114B (zh) 2017-10-27 2023-04-14 尤尼威蒂恩技术有限责任公司 选择性地转变聚合过程
EP3486260B1 (en) * 2017-11-17 2020-04-01 Borealis AG Method of splitting the return fluidization gas in a gas solids olefin polymerization reactor
WO2019112929A1 (en) 2017-12-05 2019-06-13 Univation Technologies, Llc Modified spray-dried ziegler-natta (pro)catalyst systems
ES2970016T3 (es) 2017-12-05 2024-05-23 Univation Tech Llc Sistema catalizador de ziegler-natta activado secado mediante pulverización
SG11202005184XA (en) 2017-12-18 2020-07-29 Dow Global Technologies Llc Zirconocene-titanocene catalyst system
BR112020010103B1 (pt) 2017-12-18 2024-01-02 Dow Global Technologies Llc Sistema de catalisador de hafnoceno-titanoceno, método para fazer o sistema de catalisador de hafnocenotitanoceno e método para fazer uma composição de polietileno
CN111741988A (zh) 2018-03-19 2020-10-02 尤尼威蒂恩技术有限责任公司 乙烯/1-己烯共聚物
WO2019190897A1 (en) 2018-03-26 2019-10-03 Dow Global Technologies Llc Spray-dried zirconocene catalyst system
CN111836838B (zh) 2018-03-28 2023-05-05 尤尼威蒂恩技术有限责任公司 多峰聚乙烯组合物
US12173096B2 (en) 2018-05-24 2024-12-24 Univation Technologies, Llc Unimodal polyethylene copolymer and film thereof
CN112166128B (zh) 2018-06-12 2023-06-06 陶氏环球技术有限责任公司 活化剂-成核剂配制物
WO2019241045A1 (en) 2018-06-13 2019-12-19 Univation Technologies, Llc Bimodal polyethylene copolymer and film thereof
US11248066B2 (en) 2018-06-13 2022-02-15 Univation Technologies, Llc Spray-dried Ziegler-Natta (pro)catalyst systems
WO2020028229A1 (en) 2018-07-31 2020-02-06 Univation Technologies, Llc Unimodal polyethylene copolymer and film thereof
WO2020028220A1 (en) 2018-07-31 2020-02-06 Univation Technologies, Llc Unimodal polyethylene copolymer and film thereof
CA3126921A1 (en) 2018-08-29 2020-03-05 Univation Technologies, Llc Method of changing melt rheology property of bimodal polyethylene polymer
CN112752771B (zh) 2018-08-29 2023-05-23 尤尼威蒂恩技术有限责任公司 双峰聚乙烯共聚物和其薄膜
CA3113622A1 (en) 2018-09-28 2020-04-02 Univation Technologies, Llc Bimodal polyethylene copolymer composition and pipe made thereof
KR102851089B1 (ko) 2018-11-06 2025-08-28 다우 글로벌 테크놀로지스 엘엘씨 알칸-용해성 비-메탈로센 전촉매
ES2967059T3 (es) 2018-11-06 2024-04-25 Dow Global Technologies Llc Precatalizadores no metaloceno solubles en alcanos
SG11202104262XA (en) 2018-11-06 2021-05-28 Dow Global Technologies Llc Method of olefin polymerization using alkane-soluble non-metallocene precatalyst
EP4098670A1 (en) 2019-04-30 2022-12-07 Dow Global Technologies LLC Bimodal poly(ethylene-co-1-alkene) copolymer
EP3962970A1 (en) 2019-04-30 2022-03-09 Dow Global Technologies LLC Metal-ligand complexes
MX2021012797A (es) 2019-04-30 2021-11-12 Dow Global Technologies Llc Copolimero de poli(etileno-co-1-alqueno) bimodal.
SG11202113216TA (en) 2019-06-10 2021-12-30 Univation Tech Llc Polyethylene blend
TWI785881B (zh) * 2019-06-28 2022-12-01 美商壹久公司 具有輔助氣體流的處理系統與方法及所製成用於電池的材料
US11376559B2 (en) * 2019-06-28 2022-07-05 eJoule, Inc. Processing system and method for producing a particulate material
US11121354B2 (en) 2019-06-28 2021-09-14 eJoule, Inc. System with power jet modules and method thereof
US11673112B2 (en) 2020-06-28 2023-06-13 eJoule, Inc. System and process with assisted gas flow inside a reaction chamber
AR119631A1 (es) 2019-08-26 2021-12-29 Dow Global Technologies Llc Composición a base de polietileno bimodal
BR112022004186A2 (pt) 2019-09-26 2022-05-31 Univation Tech Llc Composição de homopolímero de polietileno bimodal, métodos para fazer a composição de homopolímero de polietileno bimodal, para fabricar um artigo fabricado, para fazer um filme extrudado e para proteger um material sensível à umidade e/ou sensível ao oxigênio, formulação, artigo fabricado, filme extrudado, e, embalagem vedada
US12319759B2 (en) 2020-04-01 2025-06-03 Dow Global Technologies Llc Bimodal linear low density polyethylene copolymer
EP4157897A1 (en) 2020-05-29 2023-04-05 Dow Global Technologies LLC Chemically converted catalysts
KR20230017245A (ko) 2020-05-29 2023-02-03 다우 글로벌 테크놀로지스 엘엘씨 감쇠된 포스트-메탈로센 촉매
CA3180287A1 (en) 2020-05-29 2021-12-02 Rhett A. BAILLIE Chemically converted catalysts
WO2021242795A1 (en) 2020-05-29 2021-12-02 Dow Global Technologies Llc Attenuated post-metallocene catalysts
US20230132152A1 (en) 2020-05-29 2023-04-27 Dow Global Technologies Llc Attenuated post-metallocene catalysts
KR20230018410A (ko) 2020-05-29 2023-02-07 다우 글로벌 테크놀로지스 엘엘씨 감쇠된 하이브리드 촉매
WO2022066550A1 (en) 2020-09-22 2022-03-31 Dow Global Technologies Llc Bimodal polyethylene copolymer and film thereof
US20230312894A1 (en) 2020-09-30 2023-10-05 Univation Technologies, Llc Bimodal polyethylene copolymers for pe-80 pipe applications
EP4225486B1 (en) * 2020-12-09 2025-07-30 Basell Polyolefine GmbH Reactor for a gas-phase olefin polymerization
MX2023008941A (es) 2021-02-15 2023-08-11 Dow Global Technologies Llc Metodo para elaborar un copolimero de poli(etileno-co-1-alqueno) con distribucion de comonomero inversa.
CA3235407A1 (en) 2021-10-21 2023-04-27 Univation Technologies, Llc Bimodal poly(ethylene-co-1-alkene) copolymer and blow-molded intermediate bulk containers made therefrom
AR128453A1 (es) 2022-02-11 2024-05-08 Dow Global Technologies Llc Composiciones de polietileno de densidad media bimodal adecuadas para el uso como cintas de goteo de microirrigación
US20260098112A1 (en) 2022-12-19 2026-04-09 Dow Global Technologies Llc Method of making a morphology-improved polyethylene powder
EP4698572A1 (en) 2023-04-19 2026-02-25 Dow Global Technologies LLC Pipes including high density multimodal polyethylene compositions
CN121285561A (zh) 2023-06-08 2026-01-06 陶氏环球技术有限责任公司 包含取代的2-羟基噻吩化合物的负载型烯烃聚合催化剂
CN121311488A (zh) 2023-06-08 2026-01-09 陶氏环球技术有限责任公司 包含取代的2-羟基噻吩化合物的负载型烯烃聚合催化剂
WO2024253862A1 (en) 2023-06-08 2024-12-12 Dow Global Technologies Llc Supported olefin polymerization catalysts comprising substituted 2-hydroxythiophene compounds
WO2024253864A1 (en) 2023-06-08 2024-12-12 Dow Global Technologies Llc Supported olefin polymerization catalysts comprising substituted 2-hydroxythiophene compounds
KR20260021013A (ko) 2023-06-08 2026-02-12 다우 글로벌 테크놀로지스 엘엘씨 치환된 2-히드록시티오펜 화합물을 포함하는 담지 올레핀 중합 촉매
WO2024253859A1 (en) 2023-06-08 2024-12-12 Dow Global Technologies Llc Supported olefin polymerization catalysts comprising substituted 2-hydroxythiophene compounds
CN121548592A (zh) 2023-06-23 2026-02-17 尤尼威蒂恩技术有限责任公司 单反应器制备的双峰高密度聚乙烯共聚物及方法和制品
WO2025034361A1 (en) 2023-08-10 2025-02-13 Dow Global Technologies Llc Multimodal polyethylene compositions
WO2025101264A1 (en) 2023-11-09 2025-05-15 Dow Global Technologies Llc Multimodal polyethylene compositions
WO2025128216A1 (en) 2023-12-12 2025-06-19 Dow Global Technologies Llc Additive for a catalyst
WO2025128218A1 (en) 2023-12-12 2025-06-19 Dow Global Technologies Llc Additive for a catalyst
WO2025128214A1 (en) 2023-12-12 2025-06-19 Dow Global Technologies Llc Additive for a catalyst
WO2025128220A1 (en) 2023-12-12 2025-06-19 Dow Global Technologies Llc Additive for a catalyst
WO2025128219A1 (en) 2023-12-12 2025-06-19 Dow Global Technologies Llc Additive for a catalyst
US20260008876A1 (en) 2023-12-12 2026-01-08 Dow Global Technologies Llc Additive for a catalyst

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA943399B (en) * 1993-05-20 1995-11-17 Bp Chem Int Ltd Polymerisation process
US5969061A (en) * 1995-10-16 1999-10-19 Eastman Chemical Company Suppression of fines in a fluid bed polyethylene process
US5693727A (en) 1996-06-06 1997-12-02 Union Carbide Chemicals & Plastics Technology Corporation Method for feeding a liquid catalyst to a fluidized bed polymerization reactor
US6111036A (en) * 1996-10-17 2000-08-29 Eastman Chemical Company Method for improving cooling of fluid bed polymer reactor

Also Published As

Publication number Publication date
US20020065374A1 (en) 2002-05-30
AU3135102A (en) 2002-05-21
ATE298351T1 (de) 2005-07-15
CN1235918C (zh) 2006-01-11
DE60111644D1 (de) 2005-07-28
WO2002038629A8 (en) 2002-10-10
CA2429054C (en) 2007-03-13
CN1496373A (zh) 2004-05-12
EP1341825B1 (en) 2005-06-22
US6489408B2 (en) 2002-12-03
ES2243589T3 (es) 2005-12-01
CA2429054A1 (en) 2002-05-16
JP3668226B2 (ja) 2005-07-06
WO2002038629A3 (en) 2003-02-06
JP2004513994A (ja) 2004-05-13
EP1341825A2 (en) 2003-09-10
DE60111644T2 (de) 2006-05-04
AU2002231351B2 (en) 2005-11-10
WO2002038629A2 (en) 2002-05-16

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Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B11B Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements