ES2190025T3 - Preparacion continua de politetrahidrofurano medianta una cascada de transesterificacion con destruccion selectiva de la espuma. - Google Patents

Preparacion continua de politetrahidrofurano medianta una cascada de transesterificacion con destruccion selectiva de la espuma.

Info

Publication number
ES2190025T3
ES2190025T3 ES98118312T ES98118312T ES2190025T3 ES 2190025 T3 ES2190025 T3 ES 2190025T3 ES 98118312 T ES98118312 T ES 98118312T ES 98118312 T ES98118312 T ES 98118312T ES 2190025 T3 ES2190025 T3 ES 2190025T3
Authority
ES
Spain
Prior art keywords
transesterification
line
foam
iii
polyetrahydrofuran
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
ES98118312T
Other languages
English (en)
Inventor
Heinz Auer
Klaus Beiser
Jurgen Dr Ciprian
Lothar Dr Franz
Wolfgang Dr Franzischka
Ulrich-Dieter Pessel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Application granted granted Critical
Publication of ES2190025T3 publication Critical patent/ES2190025T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/18—Stationary reactors having moving elements inside
    • B01J19/1862—Stationary reactors having moving elements inside placed in series
    • 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
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/18—Stationary reactors having moving elements inside
    • B01J19/1868—Stationary reactors having moving elements inside resulting in a loop-type movement
    • B01J19/1881—Stationary reactors having moving elements inside resulting in a loop-type movement externally, i.e. the mixture leaving the vessel and subsequently re-entering it
    • 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
    • C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
    • C08G65/04—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers only
    • C08G65/06—Cyclic ethers having no atoms other than carbon and hydrogen outside the ring
    • C08G65/16—Cyclic ethers having four or more ring atoms
    • C08G65/20—Tetrahydrofuran
    • 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
    • C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
    • C08G65/30—Post-polymerisation treatment, e.g. recovery, purification, drying
    • 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
    • C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
    • C08G65/32—Polymers modified by chemical after-treatment
    • C08G65/329—Polymers modified by chemical after-treatment with organic compounds
    • C08G65/331—Polymers modified by chemical after-treatment with organic compounds containing oxygen
    • C08G65/3311—Polymers modified by chemical after-treatment with organic compounds containing oxygen containing a hydroxy group
    • C08G65/3312—Polymers modified by chemical after-treatment with organic compounds containing oxygen containing a hydroxy group acyclic
    • 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
    • B01J2219/00245—Avoiding undesirable reactions or side-effects
    • B01J2219/0025—Foam formation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Polyethers (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

LA INVENCION TRATA DE UN PROCEDIMIENTO PARA LA SINTESIS DE POLIMEROS QUE LLEVAN GRUPOS HIDROXILO Y EN PARTICULAR UN PROCEDIMIENTO PARA LA SINTESIS DE POLITETRAHIDROFURANO CON GRUPOS FINALES HIDROXILO A PARTIR DE LOS CORRESPONDIENTES POLIMEROS QUE LLEVAN GRUPOS ACILOXI MEDIANTE TRANSESTERIFICACION CON ALCOHOLES, QUE SE LLEVA A CABO DE MANERA CONTINUA EN AL MENOS UN RECIPIENTE DE MEZCLA, LLEVANDOSE LA ESPUMA QUE SE FORMA EN LA TRANSESTERIFICACION A UN CONTENEDOR CILINDRICO, PREFERENTEMENTE UN CICLON HUMEDO, QUE SE MUEVE TANGENCIALMENTE CON SUFICIENTE VELOCIDAD Y DONDE LA ESPUMA SE DESTRUYE. LA FASE LIQUIDA QUE SE SEDIMENTA SE RECICLA MEDIANTE UN CONDUCTO EN AL MENOS UNO DE LOS RECIPIENTES DE MEZCLA. PREFERIBLEMENTE SE LLEVA A CABO ESTE PROCEDIMIENTO EN CONTINUO EN UNA CASCADA DE RECIPIENTES DE MEZCLA. DE ESTA MANERA CADA REICPIENTE DE MEZCLA O UNA SUBUNIDAD DE AL MENOS DOS RECIPIENTES DE MEZCLA ESTAN UNIDOS CON UN CONTENEDOR CILINDRICO, PREFERIBLEMENTE EN FORMA DE UN CICLON HUMEDO.
ES98118312T 1997-09-25 1998-09-25 Preparacion continua de politetrahidrofurano medianta una cascada de transesterificacion con destruccion selectiva de la espuma. Expired - Lifetime ES2190025T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742342A DE19742342A1 (de) 1997-09-25 1997-09-25 Kontinuierliche Herstellung von Polytetrahydrofuran über eine Umesterungskaskade mit gezielter Schaumzerstörung

Publications (1)

Publication Number Publication Date
ES2190025T3 true ES2190025T3 (es) 2003-07-16

Family

ID=7843604

Family Applications (1)

Application Number Title Priority Date Filing Date
ES98118312T Expired - Lifetime ES2190025T3 (es) 1997-09-25 1998-09-25 Preparacion continua de politetrahidrofurano medianta una cascada de transesterificacion con destruccion selectiva de la espuma.

Country Status (7)

Country Link
US (1) US5981688A (es)
EP (1) EP0906928B1 (es)
JP (1) JP4249296B2 (es)
KR (1) KR100576197B1 (es)
AT (1) ATE230423T1 (es)
DE (2) DE19742342A1 (es)
ES (1) ES2190025T3 (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19817113A1 (de) * 1998-04-17 1999-10-21 Basf Ag Herstellung von Polytetrahydrofuran mit endständigen Hydroxylgruppen durch Wechsel von kontinuierlicher und disperser Phase
BE1012945A6 (fr) 1999-10-27 2001-06-05 Pantochim Sa Procede continu pour convertir un diester d'ether de polytetramethylene en ether glycol de polytetramethylene.
DE10330721A1 (de) 2003-07-08 2005-01-27 Basf Ag Verfahren zur Gewinnung von Oligomeren des Polytetrahydrofurans oder der Tetrahydrofuran-Copolymere
CN101080433B (zh) * 2005-03-17 2012-06-27 三菱化学株式会社 聚醚多元醇化合物的制造方法
DE102006009150B4 (de) 2006-02-24 2018-07-19 Basf Se Verfahren zur Herstellung von Polytetrahydrofuran oder Tetrahydrofuran-Copolymeren
DE102006027233A1 (de) 2006-06-09 2007-12-13 Basf Ag Verfahren zur Herstellung von Polytetrahydrofuran oder Tetrahydrofuran-Copolymeren
EP1999182B1 (de) 2007-01-19 2012-09-26 Basf Se VERFAHREN ZUR ÄNDERUNG DES VORGEGEBENEN MITTLEREN MOLEKULARGEWICHT Mn BEI DER KONTINUIERLICHEN HERSTELLUNG VON POLYTETRAHYDROFURANEN ODER THF COPOLYMEREN
KR20110092326A (ko) * 2008-11-27 2011-08-17 바스프 에스이 증류에 의한 분리 장치
CN103561858B (zh) * 2011-05-27 2017-02-08 Lg化学株式会社 配备有泡沫去除单元的scc
CN102295767B (zh) * 2011-06-02 2012-09-19 湖南丽臣实业股份有限公司 一种脂肪醇聚氧乙烯醚硫酸盐的喷射式脱二噁烷装置及方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1248943C2 (de) * 1965-07-20 1974-03-07 Basf Ag Verfahren und Vorrichtung zur diskontinuierlichen Entfernung von Geruchs-stoffen auswaessrigen Polymerisatdispersionen
DE2832972A1 (de) * 1978-07-27 1980-02-07 Wacker Chemie Gmbh Verfahren zur druck- und restentgasung eines pvc-wasser-gemisches im polymerisationsautoklaven bei hoechstmoeglichem abscheidegrad des uebertriebs in einem nachgeschalteten abscheider und rueckfuehrung des uebertriebs zur restentgasung in den polymerisationsautoklaven
US4230892A (en) * 1979-07-20 1980-10-28 E. I. Du Pont De Nemours And Company Alcoholysis process for preparing poly-(tetramethylene ether) glycol
DE3123300A1 (de) * 1981-06-12 1983-01-05 Basf Ag, 6700 Ludwigshafen Verfahren zur rueckgewinnung von nicht umgesetztem vinylchlorid aus stark schaeumenden polyvinylchlorid-dispersionen und polyvinylchloridsuspensionen
US5852218A (en) * 1995-12-14 1998-12-22 E. I. Du Pont De Nemours And Company Alkanolysis of polyether polyol esters by reactive distillation

Also Published As

Publication number Publication date
EP0906928A2 (de) 1999-04-07
JPH11158263A (ja) 1999-06-15
EP0906928B1 (de) 2003-01-02
EP0906928A3 (de) 1999-08-04
KR100576197B1 (ko) 2006-07-25
US5981688A (en) 1999-11-09
KR19990030149A (ko) 1999-04-26
JP4249296B2 (ja) 2009-04-02
DE59806798D1 (de) 2003-02-13
ATE230423T1 (de) 2003-01-15
DE19742342A1 (de) 1999-04-01

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