BR9712624A - Processo para a redução do acúmulo de polìmeros nas tubulações de reciclagem e em trocadores de calor durante as polimerizações que empregam butadieno, isopreno, e ou/ estireno - Google Patents

Processo para a redução do acúmulo de polìmeros nas tubulações de reciclagem e em trocadores de calor durante as polimerizações que empregam butadieno, isopreno, e ou/ estireno

Info

Publication number
BR9712624A
BR9712624A BR9712624-1A BR9712624A BR9712624A BR 9712624 A BR9712624 A BR 9712624A BR 9712624 A BR9712624 A BR 9712624A BR 9712624 A BR9712624 A BR 9712624A
Authority
BR
Brazil
Prior art keywords
butadiene
isoprene
styrene
accumulation
polymers
Prior art date
Application number
BR9712624-1A
Other languages
English (en)
Inventor
Maria Angelica Apecetche
Xinlar Bai
Kevin Joseph Cann
Original Assignee
Union Carbide Chem Plastic
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 Union Carbide Chem Plastic filed Critical Union Carbide Chem Plastic
Publication of BR9712624A publication Critical patent/BR9712624A/pt

Links

Classifications

    • 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
    • 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
    • C08F2/002—Scale prevention in a polymerisation reactor or its auxiliary parts
    • C08F2/007—Scale prevention in the auxiliary parts

Landscapes

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

Abstract

"PROCESSO PARA A REDUçãO DO ACúMULO DE POLìMEROS NAS TUBULAçõES DE RECICLAGEM E EM TROCADORES DE CALOR DURANTE AS POLIMERIZAçõES QUE EMPREGAM BUTADIENO, ISOPRENO, E/OU ESTIRENO". Processo para a inibição de acúmulo de polímeros em uma tubulação de reciclagem e um trocador de calor durante um processo de polimerização de uma ou mais alfa olefinas, especificamente polímeros viscosos, ou de uma ou mais diolefinas, tais como, butadieno, isopreno, estireno ou estireno e butadieno, o qual processo compreende a introdução de um agente anti-incrustação, um álcool, tendo de 1a 20 átomos de carbono, um éter alquílico ou ciclo-alquílico tendo de 2 a 20 átomos de carbono, amónia, um éster de um ácido inorgânico, um composto do grupo IV da tabela periódica de elementos, aminas alquílica e arílica, um composto contendo enxofre ou uma mistura dos mesmos em um ou mais pontos da tubulação de reciclagem de gás, em uma quantidade suficiente para inibir o acúmulo de polímero.
BR9712624-1A 1996-11-01 1997-10-21 Processo para a redução do acúmulo de polìmeros nas tubulações de reciclagem e em trocadores de calor durante as polimerizações que empregam butadieno, isopreno, e ou/ estireno BR9712624A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/742,029 US5733988A (en) 1994-06-29 1996-11-01 Process for reducing polymer build-up in recycle lines and heat exchangers during polymerizations employing butadiene, isoprene, and/or styrene
PCT/US1997/019077 WO1998020046A1 (en) 1996-11-01 1997-10-21 Process for reducing polymer build-up in recycle lines and heat exchangers during polymerizations enploying butadiene, isoprene, and/or styrene

Publications (1)

Publication Number Publication Date
BR9712624A true BR9712624A (pt) 1999-10-26

Family

ID=24983214

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9712624-1A BR9712624A (pt) 1996-11-01 1997-10-21 Processo para a redução do acúmulo de polìmeros nas tubulações de reciclagem e em trocadores de calor durante as polimerizações que empregam butadieno, isopreno, e ou/ estireno

Country Status (9)

Country Link
US (1) US5733988A (pt)
EP (1) EP0935614B1 (pt)
JP (1) JP2000509751A (pt)
KR (1) KR20000053008A (pt)
CN (1) CN1234807A (pt)
BR (1) BR9712624A (pt)
DE (1) DE69708906T2 (pt)
ES (1) ES2165030T3 (pt)
WO (1) WO1998020046A1 (pt)

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GB0027990D0 (en) * 2000-11-16 2001-01-03 Bp Chemicals Snc Polymerisation process
US7238756B2 (en) * 2003-10-15 2007-07-03 Univation Technologies, Llc Polymerization process and control of polymer composition properties
US6828395B1 (en) 2003-10-15 2004-12-07 Univation Technologies, Llc Polymerization process and control of polymer composition properties
JP2008511689A (ja) * 2004-07-27 2008-04-17 ダウ グローバル テクノロジーズ インコーポレイティド 熱可塑性加硫物およびこれらの調製方法
CN100448898C (zh) * 2005-03-30 2009-01-07 中国石油化工股份有限公司 一种稀土催化剂及共轭二烯烃的聚合方法
US7402636B1 (en) * 2007-03-23 2008-07-22 Exxonmobil Chemical Patents Inc Method and apparatus for decreasing polymer deposition
BRPI0910770A2 (pt) † 2008-04-22 2015-09-29 Univation Tech Llc sistema de reatores e processos para ultilização dos mesmos
CN102234342B (zh) * 2010-04-30 2013-03-06 青岛伊科思新材料股份有限公司 应用于异戊橡胶生产的稀土催化剂的制备方法
EP2465877A1 (en) 2010-12-20 2012-06-20 Ineos Commercial Services UK Limited Process
KR101462466B1 (ko) 2013-03-07 2014-11-17 대림산업 주식회사 올레핀의 중합 방법
EP3137516B1 (en) * 2015-03-25 2018-04-25 Basell Polyolefine GmbH Continuous gas-phase polymerization processes
JP6891424B2 (ja) 2015-09-28 2021-06-18 三菱ケミカル株式会社 α−オレフィン低重合体の製造方法及び製造装置
WO2018164798A1 (en) 2017-03-09 2018-09-13 Exxonmobil Chemical Patents Inc. Process for producing polyethylene polymers
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

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Also Published As

Publication number Publication date
ES2165030T3 (es) 2002-03-01
JP2000509751A (ja) 2000-08-02
WO1998020046A1 (en) 1998-05-14
DE69708906D1 (de) 2002-01-17
CN1234807A (zh) 1999-11-10
EP0935614A1 (en) 1999-08-18
DE69708906T2 (de) 2002-04-11
EP0935614B1 (en) 2001-12-05
US5733988A (en) 1998-03-31
KR20000053008A (ko) 2000-08-25

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B08F Application fees: application dismissed [chapter 8.6 patent gazette]