KR970702299A - 비상용성 중합 촉매들간의 전이방법(process for transitioning between incompatible polymerization catalysts) - Google Patents

비상용성 중합 촉매들간의 전이방법(process for transitioning between incompatible polymerization catalysts)

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Publication number
KR970702299A
KR970702299A KR1019960705340A KR19960705340A KR970702299A KR 970702299 A KR970702299 A KR 970702299A KR 1019960705340 A KR1019960705340 A KR 1019960705340A KR 19960705340 A KR19960705340 A KR 19960705340A KR 970702299 A KR970702299 A KR 970702299A
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catalyst
reactor
introducing
breaker
irreversible
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KR1019960705340A
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KR100389180B1 (ko
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아가피오스 카이리아코스 아가피오
마이클 엘로이 머흘
가리 토마스 레놀라
Original Assignee
카덴헤드 벤씨
엑손 케미칼 패턴츠 인코포레이티드
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    • 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
    • C08F10/02—Ethene
    • 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
    • C08F2/00—Processes of polymerisation
    • C08F2/38—Polymerisation using regulators, e.g. chain terminating agents, e.g. telomerisation
    • C08F2/40—Polymerisation using regulators, e.g. chain terminating agents, e.g. telomerisation using retarding agents
    • 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
    • C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F210/16—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
    • 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
    • C08F2410/00—Features related to the catalyst preparation, the catalyst use or to the deactivation of the catalyst
    • C08F2410/05—Transitioning, i.e. transition from one catalyst to another with use of a deactivating agent
    • 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

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Polymerisation Methods In General (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

본 발명은 비상용성 중합 촉매 시스템간의 전이 방법에 관한 것이다. 구체적으로 본 발명은 전형적인 지에글러-나타 촉매 시스템을 이용한 올레핀 중합 반응으로부터 메탈로센-올레핀 중합 반응으로 전이시키는 방법에 관한 것이다.

Description

비상용성 중합 촉매들간의 전이방법(PROCESS FOR TRANSITION ING BETWEEN INCOMPATIBLE POLYMERIZATION CATALYSTS)
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 실시예 1에 대한 제조 속도, 촉매 주입 속도 및 TEAL 주입 속도 대 시간의 전이 프로필을 나타낸다,
제2도는 실시예 3에 대한 제조 속도, 촉매 주입 속도 및 TEAL 주입 속도 대 시간의 전이 프로필을 나타낸다,
제3도는 실시예 5에 대한 제조 속도, 촉매 주입 속도 및 TEAL 주입 속도 대 시간의 전이 프로필을 나타낸다,
제4는 실시예 6에 대한 제조 속도, 촉매 주입 속도 및 TEAL 주입 속도 대 시간의 전이 프로필을 나타낸다.

Claims (14)

  1. a) 제1촉매를 반응기에 도입함을 중단하는 단계; b) 반응기중의 제1촉매의 금속의 총 그램 원자수를 기준으로 약 1몰 당량 이상의 양으로 비가역적 촉매 파괴제를 반응기에 도입하는 단계; 및 c) 제2촉매를 반응기에 도입하는 단계를 포함하는, 제1촉매에 의해 촉매되는 중합 반응을 제1촉매와 비상용성인 제2촉매에 의해 촉매되는 중합 반응으로 전이시키는 방법.
  2. a) 제1촉매를 반응기에 도입함을 중단하는 단계; b) 가역적 촉매 파괴제를 도입하는 단계; c) 비가역적 촉매 파괴제를 도입하는 단계; 및 d) 제2촉매를 반응기에 도입하는 단계를 포함하는, 제1촉매에 의해 촉매되는 중합 반응을 제1촉매와 비상용성인 제2촉매에 의해 촉매되는 중합 반응으로 전이시키는 방법.
  3. a) 제1촉매의 도입을 중단하는 단계; b) 유동화된 베드와 가역적 촉매 파괴제를 접촉시키는 단계; c) 유동화된 베드와 비가역적인 촉매 파괴제를 접촉시키는 단계; d) 유동화된 베드를 오가노메탈 화합물로 적정하는 단계; e) 제2촉매를 반응기에 도입하는 단계를 포함하는, 유동화된 베드를 갖는 하나 이상의 반응기에서 일어나는 기상 중합 공정에서 2개 이상의 비상용성 촉매로부터 전이시키는 방법.
  4. 제1항 내지 제3항중 어느 한 항에 있어서, 제1촉매가 전형적인 지에글러-나타 촉매를 포함하는 방법.
  5. 제1항 내지 제4항중 어느 한 항에 있어서, 제2촉매가 메탈로센 촉매를 포함하는 방법.
  6. 제1항 내지 제5항중 어느 한 항에 있어서, 비가역적 촉매 파괴제의 양이 반응기중의 제1촉매의 금속의 총 그램 원자수를 기준으로 약 2몰 당량 이상인 방법.
  7. 제1항에 있어서, 가역적 촉매 파괴제를 도입함을 더욱 포함하는 방법.
  8. 제2항, 제3항 및 제7항 중 어느 한 항에 있어서, 비가역적 촉매 파괴제의 양이 반응기중의 제1촉매의 금속의 총 그램 원자수를 기준으로 약 2몰 당량 이상인 방법.
  9. 제2항, 제3항, 제7항 및 제8항 중 어느 한 항에 있어서, 가역적 촉매 파괴제가 CO 및 CO2로 구성된 군에서 선택된 1종 이상인 방법.
  10. 제1항 내지 제9항 중 어느 한 항에 있어서, 단계(c)이전에 오가노금속 화합물을 도입함을 더욱 포함하는 방법.
  11. 제2항 또는 제3항에 있어서, 단계(b) 및 (c)가 반응기의 외부에서 수행되고, 단계가 (a), (b), (c), 및 (d)의 순서로 수행되는 방법.
  12. 제1항 내지 제11항 중 어느 한 항에 있어서, 제1촉매 및 제2촉매의 서로의 존재가 제1촉매 및 제2촉매중 하나의 활성을 50% 이상 감소시키는 방법.
  13. 제1항 내지 제12항 중 어느 한 항에 있어서, 제1촉매 및 제2촉매중 하나가 유사한 조건하에서 다른 촉매 보다 30% 이상 공단량체를 혼입하는 방법.
  14. 제3항에 있어서, 유동화 베드가 전이과정중 유동화된 상태로 유지되는 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019960705340A 1994-03-25 1995-03-24 비상용성 중합 촉매들간의 전이방법 KR100389180B1 (ko)

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US08/218,277 US5442019A (en) 1994-03-25 1994-03-25 Process for transitioning between incompatible polymerization catalysts
US08/218,277 1994-03-25

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US (4) US5442019A (ko)
EP (1) EP0751965B1 (ko)
JP (1) JP2858957B2 (ko)
KR (1) KR100389180B1 (ko)
CN (2) CN1157000A (ko)
CA (1) CA2186400A1 (ko)
DE (1) DE69501888T2 (ko)
ES (1) ES2118585T3 (ko)
WO (1) WO1995026370A1 (ko)

Families Citing this family (75)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5608019A (en) * 1992-12-28 1997-03-04 Mobil Oil Corporation Temperature control of MW in olefin polymerization using supported metallocene catalyst
US5672666A (en) * 1995-06-05 1997-09-30 Exxon Chemical Patents Inc. Process for transitioning between incompatible polymerization catalysts
US5859303A (en) * 1995-12-18 1999-01-12 Phillips Petroleum Company Olefin production
NO301331B1 (no) * 1996-03-05 1997-10-13 Borealis As Fremgangsmåte for skifting av katalysator ved suspensjonspolymerisasjon av olefiner
US5869570A (en) * 1996-03-19 1999-02-09 Energy & Environmental International, L.C. Composition of and process for forming polyalphaolefin drag reducing agents
US6015779A (en) * 1996-03-19 2000-01-18 Energy & Environmental International, L.C. Methods for forming amorphous ultra-high molecular weight polyalphaolefin drag reducing agents
US6569964B2 (en) 1997-12-29 2003-05-27 Saudi Basic Industries Corporation Alumoxane-enhanced, supported Ziegler-Natta catalysts, methods of making same, processes of using same and polymers produced therefrom
US6124412A (en) * 1997-12-29 2000-09-26 Saudi Basic Industries Corporation Alumoxane-enhanced, supported ziegler-natta polymerization catalysts, methods of making same, processes of using same and polymers produced therefrom
ES2198098T3 (es) 1998-03-09 2004-01-16 Basell Poliolefine Italia S.P.A. Procedimiento multietapas para la polimerizacion de olefinas.
EP0942011B1 (en) * 1998-03-09 2003-05-14 Basell Poliolefine Italia S.p.A. Multi-stage process for the polymerization of olefins
US7005485B2 (en) * 1998-12-18 2006-02-28 Chevron Phillips Chemical Company Lp Process for producing polyolefins
US6258903B1 (en) 1998-12-18 2001-07-10 Univation Technologies Mixed catalyst system
US6967230B2 (en) * 1998-12-18 2005-11-22 Chevron Phillips Chemical Company Lp Process for producing polyolefins
US6111034A (en) * 1998-12-31 2000-08-29 Union Carbide Chemicals & Plastics Technology Corporation Static control in olefin polymerization
DE60006082T2 (de) 1999-03-09 2004-07-22 Basell Polyolefine Gmbh Mehrstufiges verfahren zur (co)polymersation von olefinen
CN1352657A (zh) * 1999-03-31 2002-06-05 切夫里昂菲利普化学有限责任公司 用于不相容聚合催化剂之间转变的方法
KR20010051260A (ko) * 1999-11-12 2001-06-25 조셉 에스. 바이크 점착성 중합체의 제조를 위한 전이 방법
GB0008770D0 (en) * 2000-04-10 2000-05-31 Bp Chem Int Ltd Polymerisation process
US6388027B1 (en) 2000-10-24 2002-05-14 Union Carbide Chemicals & Plastics Technology Corporation Transition strategy for the production of sticky polymers
US6815011B2 (en) 2000-11-27 2004-11-09 Energy & Environmental International, L.C. Alpha olefin monomer partitioning agents for drag reducing agents and methods of forming drag reducing agents using alpha olefin monomer partitioning agents
EP1351998B1 (en) 2001-01-16 2010-02-24 BETA Technologie AG Methods for forming amorphous ultra-high molecular weight polyolefins for use as drag reducing agents
US7012046B2 (en) * 2001-06-08 2006-03-14 Eaton Gerald B Drag reducing agent slurries having alfol alcohols and processes for forming drag reducing agent slurries having alfol alcohols
EP1406969A1 (en) * 2001-07-17 2004-04-14 Basell Polyolefine GmbH Multistep process for the (co)polymerization of olefins
US6916892B2 (en) * 2001-12-03 2005-07-12 Fina Technology, Inc. Method for transitioning between Ziegler-Natta and metallocene catalysts in a bulk loop reactor for the production of polypropylene
EP1515998B1 (en) * 2002-06-24 2011-05-11 Basell Poliolefine Italia S.r.l. Liquid phase process for the polymerization of alpha-olefins
US6730751B2 (en) * 2002-07-16 2004-05-04 Fina Technology, Inc. Polymerization of polyethylene having high molecular weight
US6897269B2 (en) * 2002-12-27 2005-05-24 Univation Technologies, Llc Processes for transitioning between Ziegler-Natta and alumoxane-based single-site polymerization catalysts
AU2003295724A1 (en) * 2002-12-27 2004-07-29 Univation Technologies, Llc Processes for transitioning between ziegler-natta and alumoxane-based single-site polymerization catalysts
US6858684B2 (en) * 2002-12-30 2005-02-22 Univation Technologies, Llc Processes for transitioning between various polymerization catalysts
CN1302015C (zh) * 2002-12-30 2007-02-28 尤尼威蒂恩技术有限责任公司 用于在不同聚合催化剂之间转变的方法
US6867270B2 (en) * 2002-12-31 2005-03-15 Univation Technologies, Llc Process for transitioning between incompatible catalysts using a substantially contaminant free seedbed
CN100335508C (zh) * 2002-12-31 2007-09-05 尤尼威蒂恩技术有限责任公司 用于在金属茂和齐格勒－纳塔聚合催化剂之间转变的方法
US6949612B2 (en) * 2002-12-31 2005-09-27 Univation Technologies, Llc Processes for transitioning between metallocene and Ziegler-Natta polymerization catalysts
DE60310134T2 (de) * 2002-12-31 2007-09-27 Univation Technologies, LLC, Houston Verfahren zum wechsel von einem katalysator zu einem andern, mit dem ersten unverträglichen ,katalysator in einem gasphasenreaktor
US6841630B2 (en) * 2002-12-31 2005-01-11 Univation Technologies, Llc Processes for transitioning between chrome-based and mixed polymerization catalysts
US6833417B2 (en) * 2002-12-31 2004-12-21 Univation Technologies, Llc Processes for transitioning between chrome-based and mixed polymerization catalysts
US6833416B2 (en) * 2003-03-21 2004-12-21 Univation Technologies, Llc Methods of polymerizing olefin monomers with mixed catalyst systems
US6995216B2 (en) * 2003-06-16 2006-02-07 Equistar Chemicals, Lp Process for manufacturing single-site polyolefins
US6861485B2 (en) * 2003-06-20 2005-03-01 Equistar Chemicals, Lp Multi-catalyst system for olefin polymerization
CN101080423B (zh) * 2004-12-21 2011-06-15 尤尼威蒂恩技术有限责任公司 用于在齐格勒-纳塔基催化剂和铬基催化剂之间转变的方法
US7629422B2 (en) * 2004-12-21 2009-12-08 Univation Technologies, Llc Process for transitioning between Ziegler-Natta-based and chromium-based catalysts
DE102005035477A1 (de) * 2005-07-26 2007-02-01 Basell Polyolefine Gmbh Verfahren zur Steuerung der relativen Aktivität der unterschiedlichen aktiven Zentren von Hybridkatalysatoren
DE602006016816D1 (de) * 2005-07-27 2010-10-21 Basell Poliolefine Srl Polymerisationsverfahren zur herstellung von polyolefinen
US7473745B2 (en) 2005-09-02 2009-01-06 Equistar Chemicals, Lp Preparation of multimodal polyethylene
EP1767549A1 (en) 2005-09-20 2007-03-28 Ineos Europe Limited Polymerisation catalysts
US8377586B2 (en) * 2005-10-05 2013-02-19 California Institute Of Technology Fluoride ion electrochemical cell
US20100221603A1 (en) * 2006-03-03 2010-09-02 Rachid Yazami Lithium ion fluoride battery
DE102005056775A1 (de) * 2005-11-28 2007-05-31 Basell Polyolefine Gmbh Verfahren für den Katalysatorwechsel in einem Gasphasenwirbelschichtreaktor
CA2529920C (en) * 2005-12-13 2013-08-20 Nova Chemicals Corporation On the fly catalyst transitions
EP1840141A1 (en) * 2006-03-31 2007-10-03 Total Petrochemicals Research Feluy Process to kill a catalysed olefin polymerization
EP2167228B1 (en) * 2007-05-09 2015-07-08 California Institute of Technology Lithium fluoropolymer and fluoro-organic batteries
US7981517B2 (en) * 2007-08-28 2011-07-19 Dow Global Technologies Inc. Bituminous compositions and methods of making and using same
KR101610649B1 (ko) 2008-07-23 2016-04-08 바젤 폴리올레핀 게엠베하 비상용성 올레핀 종합 촉매 시스템 간의 전환 방법
CN102264773B (zh) * 2008-12-23 2013-12-04 巴塞尔聚烯烃股份有限公司 不相容的烯烃聚合催化剂体系之间转变的方法
EP2216347A1 (en) 2009-01-30 2010-08-11 Borealis AG A method of catalyst transitions in olefin polymerizations
US8207280B2 (en) 2009-06-29 2012-06-26 Chevron Phillips Chemical Company Lp Use of hydrogen scavenging catalysts to control polymer molecular weight and hydrogen levels in a polymerization reactor
EP2448978B1 (en) * 2009-06-29 2016-05-18 Chevron Phillips Chemical Company LP Dual metallocene catalyst systems for decreasing melt index and increasing polymer production rates
WO2011028178A1 (en) * 2009-09-07 2011-03-10 Irpc Public Company Limited Highly active, morphologically-controled ziegler-natta polyethylene catalyst and method of preparing the same
BR112012014861A2 (pt) 2009-12-18 2016-03-29 Total Petrochemicals Res Feluy método para melhorar a reação de polimerização de etileno
EP2383298A1 (en) † 2010-04-30 2011-11-02 Ineos Europe Limited Polymerization process
EP2598541B1 (en) * 2010-07-30 2015-02-25 Total Research & Technology Feluy Method for producing polyethylene
CN103772544B (zh) * 2012-10-20 2016-06-15 中国石油化工股份有限公司 气相法聚乙烯钛系与铬系催化剂切换工艺
RU2687495C2 (ru) 2013-12-23 2019-05-14 Инеос Юроуп Аг Введение улавливателя
US9914794B2 (en) 2014-05-27 2018-03-13 Sabic Global Technologies B.V. Process for transitioning between incompatible catalysts
EA032875B1 (ru) * 2014-12-22 2019-07-31 Сабик Глоубл Текнолоджиз Б.В. Способ перехода между несовместимыми катализаторами
KR20170109548A (ko) * 2014-12-22 2017-09-29 사빅 글로벌 테크놀러지스 비.브이. 비융화성 촉매 간의 전환 방법
WO2016151098A1 (en) 2015-03-24 2016-09-29 Sabic Global Technologies B.V. Process for transitioning between incompatible catalysts
CN107531839B (zh) * 2015-04-24 2021-05-25 尤尼威蒂恩技术有限责任公司 用于操作聚合反应器的方法
KR101885812B1 (ko) 2015-11-30 2018-08-07 인디언 오일 코퍼레이션 리미티드 마찰저항 감소 폴리머를 제조하는 방법 및 이의 용도
CN108699168B (zh) * 2015-12-22 2021-04-27 Sabic环球技术有限责任公司 用于不相容催化剂之间转换的方法
KR101758572B1 (ko) 2016-09-29 2017-07-14 롯데케미칼 주식회사 비혼화성 중합 촉매계 사이의 전환 방법
CN114426590A (zh) * 2020-09-28 2022-05-03 中国石油化工股份有限公司 一种茂金属催化剂与Ziegler-Natta催化剂的在线切换方法
CN114624386A (zh) * 2020-12-10 2022-06-14 中国石油天然气股份有限公司 一种乙烯聚合催化剂的评价方法
EP4389776A1 (en) 2022-12-20 2024-06-26 Borealis AG Process
EP4389783A1 (en) 2022-12-20 2024-06-26 Borealis AG Catalyst transition process

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4433122A (en) * 1982-05-03 1984-02-21 Monsanto Company Stopping/restarting free radical polymerizations
US4460755A (en) * 1982-09-30 1984-07-17 Union Carbide Corporation Direct conversion of a polymerization reaction catalyzed by a Ziegler-type catalyst into one catalyzed by a chromium-based catalyst
US4883847A (en) * 1988-10-27 1989-11-28 Amoco Corporation Process to terminate an olefin polymerization reaction
DE4241530C2 (de) * 1992-12-10 1999-03-25 Buna Sow Leuna Olefinverb Gmbh Verfahren zur Herstellung von Polyethylen hoher Dichte

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