BR0005275A - Estratégia de transição para a produção de polìmeros pegajosos - Google Patents

Estratégia de transição para a produção de polìmeros pegajosos

Info

Publication number
BR0005275A
BR0005275A BR0005275-2A BR0005275A BR0005275A BR 0005275 A BR0005275 A BR 0005275A BR 0005275 A BR0005275 A BR 0005275A BR 0005275 A BR0005275 A BR 0005275A
Authority
BR
Brazil
Prior art keywords
production
sticky polymers
transition strategy
transition
sticky
Prior art date
Application number
BR0005275-2A
Other languages
English (en)
Inventor
Daniel Paul Zilker
William David Vacek
Mark Edwin O'rosky
Fathi David Hussein
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 BR0005275A publication Critical patent/BR0005275A/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
    • 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
    • C08F210/18—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers with non-conjugated dienes, e.g. EPT 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
    • C08F2/00—Processes of polymerisation
    • C08F2/34—Polymerisation in gaseous state
    • 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
    • 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

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)

Abstract

"ESTRATéGIA DE TRANSIçãO PARA A PRODUçãO DE POLìMEROS PEGAJOSOS" A invenção se refere a um processo para fazer a transição da polimerização de um polímero pegajoso, para polimerizar um outro polímero pegajoso na produção do leito de fluidização em fase gasosa, para diminuir o tempo de transição, reduzir o material fora do grau e/ou evitar dificuldades operacionais.
BR0005275-2A 1999-11-12 2000-11-08 Estratégia de transição para a produção de polìmeros pegajosos BR0005275A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16504599P 1999-11-12 1999-11-12

Publications (1)

Publication Number Publication Date
BR0005275A true BR0005275A (pt) 2001-07-03

Family

ID=22597185

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0005275-2A BR0005275A (pt) 1999-11-12 2000-11-08 Estratégia de transição para a produção de polìmeros pegajosos

Country Status (5)

Country Link
EP (1) EP1099715A1 (pt)
JP (1) JP2001139613A (pt)
KR (1) KR20010051260A (pt)
CN (1) CN1296019A (pt)
BR (1) BR0005275A (pt)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1578813B1 (en) 2002-12-31 2006-11-29 Univation Technologies, LLC Method for transitioning from a catalyst to an incompatible catalyst in a gas-phase reactor
US7531606B2 (en) 2004-05-26 2009-05-12 Chevron Phillips Chemical Company Lp Method for operating a gas phase polymerization reactor
US7598327B2 (en) 2004-11-10 2009-10-06 Chevron Phillips Chemical Company Lp Method for polymerizing olefins in a gas phase reactor using a seedbed during start-up
EP2995635A1 (en) 2014-09-11 2016-03-16 Sulzer Chemtech AG Method to minimize the transition time from one polymer grade to another polymer grade in a polymerization plant
CN112516926A (zh) * 2020-11-27 2021-03-19 中安联合煤化有限责任公司 一种甲醇制烯烃流化床装置短时间闷床处理方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2001183C3 (de) * 1970-01-13 1980-01-31 Chemische Werke Huels Ag, 4370 Marl Verfahren zur Unterbrechung und Wiederingangsetzung von Olefinpolymerisationen
DE2841646C2 (de) * 1978-09-25 1986-05-07 Basf Ag, 6700 Ludwigshafen Verfahren zur Unterbrechung und Wiederingangsetzung der Homo- und Copolymerisation von alpha -Monoolefinen
US4326048A (en) * 1980-05-27 1982-04-20 Standard Oil Company (Indiana) Method for emergency shutdown of gas phase polyolefin reactor
US5442019A (en) * 1994-03-25 1995-08-15 Exxon Chemical Company Process for transitioning between incompatible polymerization catalysts
US5548040A (en) * 1994-12-20 1996-08-20 Union Carbide Chemicals & Plastics Technology Corporation Process for passivation of a reactor after shutdown of alpha olefin polymerization processes

Also Published As

Publication number Publication date
EP1099715A1 (en) 2001-05-16
CN1296019A (zh) 2001-05-23
JP2001139613A (ja) 2001-05-22
KR20010051260A (ko) 2001-06-25

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Legal Events

Date Code Title Description
B08F Application fees: application dismissed [chapter 8.6 patent gazette]

Free format text: REFERENTE A 3A, 4A, 5A, 6A E 7A ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1925 DE 27/11/2007.