FR2411211A1 - Procede de purification de polyethers bruts - Google Patents

Procede de purification de polyethers bruts

Info

Publication number
FR2411211A1
FR2411211A1 FR7813259A FR7813259A FR2411211A1 FR 2411211 A1 FR2411211 A1 FR 2411211A1 FR 7813259 A FR7813259 A FR 7813259A FR 7813259 A FR7813259 A FR 7813259A FR 2411211 A1 FR2411211 A1 FR 2411211A1
Authority
FR
France
Prior art keywords
polyether
polyethers
vapor
evaporator
crude
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.)
Granted
Application number
FR7813259A
Other languages
English (en)
Other versions
FR2411211B1 (fr
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.)
Bayer AG
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 FR2411211A1 publication Critical patent/FR2411211A1/fr
Application granted granted Critical
Publication of FR2411211B1 publication Critical patent/FR2411211B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyethers (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

L'INVENTION CONCERNE LA PURIFICATION DE POLYETHERS BRUTS CONTENANT DES TRACES D'EAU ET DE SOLVANTS ET DES MATIERES ODORANTES. SELON L'INVENTION, ON INTRODUIT LE POLYETHER BRUT AVEC ADDITION DE 1 A 20 EN POIDS DE VAPEUR D'EAU DANS UN EVAPORATEUR A SERPENTIN CHAUFFE ET ON ETABLIT A SON EXTREMITE UNE PRESSION DE 5 A 200 MILLIBARS, ET ON REGLE SIMULTANEMENT LE CHAUFFAGE DE L'EVAPORATEUR A SERPENTIN DE TELLE SORTE QUE LA TEMPERATURE DU POLYETHER EN CE POINT SOIT COMPRISE ENTRE 100 ET 220C, CE QUI ETABLIT UNE VITESSE DU MELANGE GAZEUX, RAPPORTEE A LA SECTION DROITE DU TUBE, COMPRISE ENTRE 40MS ET LA VITESSE DUSON, ET L'ON SEPARE DANS UN CYCLONE BRANCHE A LA SUITE LE POLYETHER PUR DE LA PHASE VAPEUR QUI CONTIENT LA VAPEUR AJOUTEE ET LES IMPURETES VOLATILES. LES POLYETHERS PURIFIES PAR LE PROCEDE DE L'INVENTION CONVIENNENT TOUT SPECIALEMENT COMME COMPOSANTS DE DEPART POUR LA PREPARATION DE MOUSSES DE POLYURETHANNES.
FR7813259A 1977-12-10 1978-05-03 Procede de purification de polyethers bruts Granted FR2411211A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2755089A DE2755089C3 (de) 1977-12-10 1977-12-10 Verfahren zur Reinigung von Rohpolyäthern

Publications (2)

Publication Number Publication Date
FR2411211A1 true FR2411211A1 (fr) 1979-07-06
FR2411211B1 FR2411211B1 (fr) 1984-09-14

Family

ID=6025787

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7813259A Granted FR2411211A1 (fr) 1977-12-10 1978-05-03 Procede de purification de polyethers bruts

Country Status (7)

Country Link
US (1) US4143072A (fr)
JP (1) JPS5839168B2 (fr)
BE (1) BE872622A (fr)
DE (1) DE2755089C3 (fr)
ES (1) ES475829A1 (fr)
FR (1) FR2411211A1 (fr)
GB (1) GB1580520A (fr)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56104936A (en) * 1980-01-24 1981-08-21 Dai Ichi Kogyo Seiyaku Co Ltd Purification of polyether polyol
DE3034680A1 (de) * 1980-09-13 1982-04-29 Bayer Ag, 5090 Leverkusen Verbessertes verfahren zur auftrennung von polyurethan-hydrolysaten in polyether und diamin
DE3708813A1 (de) * 1987-03-18 1988-09-29 Henkel Kgaa Verfahren zur entfernung von ethylen- und/oder propylenoxid aus oberflaechenaktiven derivaten
US4946939A (en) * 1989-05-30 1990-08-07 The Dow Chemical Company High purity polyether polyols
US5480978A (en) * 1989-09-27 1996-01-02 Henkel Kommanditgesellschaft Auf Aktien Process for the removal of alcohols
US5268510A (en) * 1992-10-08 1993-12-07 Vista Chemical Company Process for purification of alkoxylated alcohols
DE4312009C2 (de) * 1993-04-13 1995-06-08 Henkel Kgaa Verfahren zur Herstellung von Zuckertensiden mit verbesserter Geruchsqualität
US5364973A (en) * 1993-05-06 1994-11-15 Arco Chemical Technology Productive process for making conventional and low-unsaturation polyether polyols
DE4340093A1 (de) * 1993-11-24 1995-06-01 Cognis Bio Umwelt Verfahren zur vereinfachten Trennung von Mehrstoffgemischen wenigstens anteilig organischen Ursprungs
DE4402883A1 (de) * 1994-02-01 1995-08-03 Henkel Kgaa Optimiertes Verfahren zur Aufarbeitung von wasserdampfbasierten Brüdenströmen
DE19509352A1 (de) * 1995-03-15 1996-09-19 Basf Ag Verfahren zur Aufarbeitung von in Additionsreaktionen an Acetylen oder Propin anfallenden Reaktionsgemischen
DE19530388A1 (de) * 1995-08-18 1997-02-20 Bayer Ag Geruchsarme, höhermolekulare Polyetherpolyole, ein Verfahren zu deren Herstellung sowie deren Verwendung für die Herstellung von auf Polyetherpolyolen aufbauenden Polymeren, Kosmetika und pharmazeutischen Produkten
DE19629160A1 (de) * 1996-07-19 1998-01-22 Basf Ag Verfahren zur Herstellung von Polyurethanweichschaumstoffen
KR100809151B1 (ko) * 1997-11-10 2008-02-29 콸콤 인코포레이티드 액세스 채널 슬롯 공유
SE9902364D0 (sv) * 1999-06-21 1999-06-21 Astra Ab New process
US6765084B2 (en) 2002-01-15 2004-07-20 Dai-ichi Kogyo Seiyakn Co., Ltd. Production process for ethylene oxide resin
EP1878759B1 (fr) 2002-04-26 2010-08-25 Zeon Corporation Polyether polymére et procédé pour sa préparation
EP2365019A1 (fr) 2010-03-13 2011-09-14 Bayer MaterialScience AG Procédé destiné à la fabrication de polyols de polyéther
CN104151540B (zh) * 2014-08-06 2016-08-17 山东蓝星东大化工有限责任公司 低voc含量高回弹聚氨酯泡沫用聚醚多元醇的制备方法
CN108148192A (zh) 2016-12-06 2018-06-12 科思创聚合物（中国）有限公司 低气味聚醚多元醇及其制备方法
CN106892799A (zh) * 2017-02-27 2017-06-27 江苏钟山化工有限公司 连续减压四段控温精馏精制聚醚丙二醇的方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1054337A (fr) * 1963-07-11
US3358042A (en) * 1963-09-20 1967-12-12 Quaker Oats Co Process for recovering polytetramethylene ether glycol
US3326985A (en) * 1964-12-29 1967-06-20 Shell Oil Co Polytrimethylene glycol

Also Published As

Publication number Publication date
DE2755089C3 (de) 1982-05-13
JPS5480398A (en) 1979-06-27
DE2755089B2 (de) 1981-07-23
JPS5839168B2 (ja) 1983-08-27
GB1580520A (en) 1980-12-03
DE2755089A1 (de) 1979-06-13
US4143072A (en) 1979-03-06
BE872622A (fr) 1979-06-08
FR2411211B1 (fr) 1984-09-14
ES475829A1 (es) 1979-04-16

Similar Documents

Publication Publication Date Title
FR2411211A1 (fr) Procede de purification de polyethers bruts
FR2395785A1 (fr) Dispositif pour la recuperation en continu de fractions d'un melange liquide soumis a centrifugation
GB1355520A (en) Method and instrument for purification of the air with mercury vapour content
US4287350A (en) Process for the preparation of thiazolidine-2-thiones
FR2502181B1 (fr) Procede et appareillage pour l'injection precise et continue d'un derive halogene a l'etat gazeux dans un metal liquide
US3850758A (en) Purification of crude maleic anhydride by treatment with dimethylbenzophenone
FR2424046A1 (fr) Procede pour purifier des liquides et/ou regenerer des solutions absorbantes
ES470700A1 (es) Dispositivo separador para instalaciones de evaporizcion.
GB1490590A (en) Apparatus for separating oil drops from vapour
US4575403A (en) Apparatus for distilling phosphorus
JPS5835171B2 (ja) ベンゾインエ−テルノセイゾウホウ
US2438252A (en) Purification of hydrogen peroxide by a nonconcentrating distillation
FR2457675A1 (fr) Pneumotachographe a tubes de pitot
GB981420A (en) Improvements in the manufacture of phosphorus
GB1521153A (en) Method of spontaneously distilling off impurities especially from oily liquids
GB1081893A (en) Improvements relating to the production of phosphoric acids
GB997402A (en) Thermal process of preparing magnesium
JPS5569693A (en) Distillation of crude oil
US2816143A (en) Probst
FR2391954A2 (fr) Procede de purification d'un acide phosphorique de voie humide
FR2395265A1 (fr) Procede de recuperation d'anhydride maleique
JPS57195195A (en) Purification of orthophosphoric ester oil for electric insulation
Barrau et al. SYNTHESE ET REACTIVITE DE DITHIAPHOSPHA-DIGERMINANE ET-GERMINANE NOUVEAUX DITHIAPHOSPHONATES GERMANIES CYCLIQUES
US2971990A (en) 2-bromo-1, 1, 1, 2-tetrafluoroethane
EP0191395A3 (en) Process for the purification of crude maleic anhydride

Legal Events

Date Code Title Description
ST Notification of lapse