ES475829A1 - Procedimiento para la purificacion de polieteres en bruto. - Google Patents

Procedimiento para la purificacion de polieteres en bruto.

Info

Publication number
ES475829A1
ES475829A1 ES475829A ES475829A ES475829A1 ES 475829 A1 ES475829 A1 ES 475829A1 ES 475829 A ES475829 A ES 475829A ES 475829 A ES475829 A ES 475829A ES 475829 A1 ES475829 A1 ES 475829A1
Authority
ES
Spain
Prior art keywords
purification
polyethers
coil evaporator
tubular coil
polyether
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
Application number
ES475829A
Other languages
English (en)
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 ES475829A1 publication Critical patent/ES475829A1/es
Expired 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

Procedimiento para la purificación de poliéteres en bruto, caracterizado porque el poliéter en bruto se alimenta bajo adición de un 1 hasta 20% en peso de vapor de agua a un evaporador de serpentín calentado y en su extremo se aplica una presión entre 5 y 200 mbar y simultáneamente se regula el calentamiento del evaporador de serpentín de manera que la temperatura del poliéter ascienda en este lugar a 100 hasta 220ºC.
ES475829A 1977-12-10 1978-12-07 Procedimiento para la purificacion de polieteres en bruto. Expired ES475829A1 (es)

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 (1)

Publication Number Publication Date
ES475829A1 true ES475829A1 (es) 1979-04-16

Family

ID=6025787

Family Applications (1)

Application Number Title Priority Date Filing Date
ES475829A Expired ES475829A1 (es) 1977-12-10 1978-12-07 Procedimiento para la purificacion de polieteres en bruto.

Country Status (7)

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

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
EP1507268B1 (en) 2002-04-26 2008-12-03 Zeon Corporation Material for solid polymer electrolyte, and polyether polymer and process for producing same
EP2365019A1 (de) 2010-03-13 2011-09-14 Bayer MaterialScience AG Verfahren zur Herstellung von Polyetherpolyolen
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 (es) * 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
DE2755089A1 (de) 1979-06-13
DE2755089C3 (de) 1982-05-13
FR2411211A1 (fr) 1979-07-06
GB1580520A (en) 1980-12-03
DE2755089B2 (de) 1981-07-23
JPS5839168B2 (ja) 1983-08-27
FR2411211B1 (es) 1984-09-14
US4143072A (en) 1979-03-06
JPS5480398A (en) 1979-06-27
BE872622A (fr) 1979-06-08

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19990405