BR9911418A - Processo para o isolamento de polìmeros a partir de soluções - Google Patents

Processo para o isolamento de polìmeros a partir de soluções

Info

Publication number
BR9911418A
BR9911418A BR9911418-6A BR9911418A BR9911418A BR 9911418 A BR9911418 A BR 9911418A BR 9911418 A BR9911418 A BR 9911418A BR 9911418 A BR9911418 A BR 9911418A
Authority
BR
Brazil
Prior art keywords
separator
helical tube
heated
polymers
solutions
Prior art date
Application number
BR9911418-6A
Other languages
English (en)
Inventor
Clemens Casper
Joergen Weinschenck
Klemens Kohlgrueber
Juergen Heuser
Christian Kords
Thomas Elsner
Original Assignee
Bayer Ag
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 Bayer Ag filed Critical Bayer Ag
Publication of BR9911418A publication Critical patent/BR9911418A/pt

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/06—Flash distillation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
    • C08G64/40—Post-polymerisation treatment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
    • C08G64/40—Post-polymerisation treatment
    • C08G64/406—Purifying; Drying
    • 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
    • Y10S159/00—Concentrating evaporators
    • Y10S159/08—Multieffect or multistage
    • 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
    • Y10S159/00—Concentrating evaporators
    • Y10S159/10—Organic

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Patente de Invenção: <B>"PROCESSO PARA O ISOLAMENTO DE POLìMEROS A PARTIR DE SOLUçõES"<D>. A invenção refere-se à evaporação de uma solução de polímero viscosa tendo pelo menos 30 %, em peso, de preferência, pelo menos 50 até 70 %, em peso, de solventes e monómeros. De acordo com o método da invenção, a solução de polímero a ser evaporada é guiada através de um tubo helicoidal aquecido (5) como um fluxo de película com uma velocidade de saída de vapor na faixa de 200 até 300 m/s e fluxos para um separador (6) aquecido logo depois. O aquecimento do tubo helicoidal (5) e do separador (6) é realizado de maneira tal, que as temperaturas dos meios de aquecimento no tubo helicoidal (5) e no separador (6) estão acima do ponto de amolecimento do polímero. Um critério para um método importante adicional é caracterizado pelo fato de que a mistura de duas fases que é feita de massa em fusão de polímeros, vapores de solventes e vapores de monómeros e que é formada no tubo helicoidal (5) é abrandada para uma faixa de pressão de 10 mb até 800 mb~ abs~ no separador de apor aquecido (6).
BR9911418-6A 1998-06-23 1999-06-11 Processo para o isolamento de polìmeros a partir de soluções BR9911418A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19827852A DE19827852A1 (de) 1998-06-23 1998-06-23 Verfahren zur Isolierung von Polymeren aus Lösungen
PCT/EP1999/004023 WO1999067002A1 (de) 1998-06-23 1999-06-11 Verfahren zur isolierung von polymeren aus lösungen

Publications (1)

Publication Number Publication Date
BR9911418A true BR9911418A (pt) 2001-03-20

Family

ID=7871697

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9911418-6A BR9911418A (pt) 1998-06-23 1999-06-11 Processo para o isolamento de polìmeros a partir de soluções

Country Status (12)

Country Link
US (1) US6506281B1 (pt)
EP (1) EP1094873B1 (pt)
JP (1) JP2002518551A (pt)
KR (1) KR20010034912A (pt)
CN (1) CN1100581C (pt)
AU (1) AU4607699A (pt)
BR (1) BR9911418A (pt)
CA (1) CA2335577A1 (pt)
DE (2) DE19827852A1 (pt)
ES (1) ES2221393T3 (pt)
HK (1) HK1039081A1 (pt)
WO (1) WO1999067002A1 (pt)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6620906B1 (en) * 2000-02-07 2003-09-16 Bayer Aktiengesellschaft Method for the production of highly pure polycarbonate and ultrapure polycarbonate
WO2007090768A1 (de) * 2006-02-09 2007-08-16 Basf Se Verfahren zur gewinnung von vinylverbindungen durch verdampfung
MX2010001396A (es) 2007-08-31 2010-03-01 Basf Se Metodo para la produccion de isocianatos.
US8496787B2 (en) * 2009-07-26 2013-07-30 Michael John Lord Method and apparatus for effluent free sea water desalination
IT1404150B1 (it) * 2010-12-28 2013-11-15 Polimeri Europa Spa Procedimento per la depressurizzazione di fluidi e dispositivo adatto allo scopo
US9994678B2 (en) 2013-06-12 2018-06-12 Basf Se Process for the continuous preparation of an aliphatic or partially aromatic polyamide
EP2881154B1 (de) 2013-12-04 2018-02-21 Fluitec Invest AG Vorrichtung und Verfahren zur Entspannungsverdampfung
WO2016030467A2 (de) * 2014-08-27 2016-03-03 List Holding Ag Verfahren zur verbesserung der isolation von polymerlösungen
KR102637371B1 (ko) 2017-12-18 2024-02-19 코베스트로 도이칠란트 아게 염화탄화수소를 기재로 하는 유기 용매를 사용하여 폴리카르보네이트를 제조하는 방법

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3279893A (en) * 1963-07-05 1966-10-18 Monsanto Co Apparatus for processing liquids
GB1201145A (en) * 1966-11-30 1970-08-05 Ici Ltd Process and apparatus for gas/liquid separation
DE1667051B2 (de) 1967-09-04 1976-09-23 Bayer Ag, 5090 Leverkusen Verfahren und vorrichtung zum eindampfen von insbesondere viskosen fluessigkeiten und zum ausdampfen der bei reaktionen entstehenden produkte
US3834441A (en) 1969-04-25 1974-09-10 Bayer Ag Process for concentrating polymer solutions by evaporation
DE2724360B2 (de) * 1977-05-28 1981-03-12 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung von thermoplastischen Formmassen auf Basis von Vinylpolymerisaten
DE3030662A1 (de) * 1980-08-13 1982-03-18 Bayer Ag, 5090 Leverkusen Verfahren zur trocknung von pumpfaehigen suspensionen
IT1226303B (it) * 1988-07-26 1990-12-27 Montedipe Spa Processo ed apparato per la devolatilizzazione di soluzioni di polimeri.
JP2633339B2 (ja) * 1989-01-12 1997-07-23 出光石油化学株式会社 ポリカーボネートの製造方法
JP3164860B2 (ja) * 1991-11-26 2001-05-14 三菱レイヨン株式会社 アクリル系樹脂の製造方法
EP0783011A3 (de) * 1996-01-05 1998-07-08 Bayer Ag Verfahren zur Isolierung von teilkristallinem Polycarbonatpulver
DE19600630A1 (de) * 1996-01-10 1997-07-17 Bayer Ag Verfahren und Vorrichtung zum kontinuierlichen Eindampfen von zähflüssigen, zum Haften neigenden Lösungen und Suspensionen bis zur Trockenmasse
US6069228A (en) * 1998-08-17 2000-05-30 E. I. Du Pont De Nemours And Company Process for preparing polyamides

Also Published As

Publication number Publication date
AU4607699A (en) 2000-01-10
EP1094873A1 (de) 2001-05-02
CA2335577A1 (en) 1999-12-29
DE19827852A1 (de) 1999-12-30
WO1999067002A1 (de) 1999-12-29
JP2002518551A (ja) 2002-06-25
CN1100581C (zh) 2003-02-05
HK1039081A1 (zh) 2002-04-12
DE59909411D1 (de) 2004-06-09
KR20010034912A (ko) 2001-04-25
US6506281B1 (en) 2003-01-14
ES2221393T3 (es) 2004-12-16
CN1307497A (zh) 2001-08-08
EP1094873B1 (de) 2004-05-06

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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 6A , 7A E 8A 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 1894 DE 24/04/2007.