CA2165140A1 - Methode pour eliminer une substance a ph basique dans un polyether-polyol - Google Patents

Methode pour eliminer une substance a ph basique dans un polyether-polyol

Info

Publication number
CA2165140A1
CA2165140A1 CA 2165140 CA2165140A CA2165140A1 CA 2165140 A1 CA2165140 A1 CA 2165140A1 CA 2165140 CA2165140 CA 2165140 CA 2165140 A CA2165140 A CA 2165140A CA 2165140 A1 CA2165140 A1 CA 2165140A1
Authority
CA
Canada
Prior art keywords
emulsion
polymerizate
polyether polyol
inorganic salt
coalescer
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.)
Abandoned
Application number
CA 2165140
Other languages
English (en)
Inventor
Mark R. Kratz
Robert P. Yeater
David A. Balister
Robin E. Tirpak
Lewis S. Newman
Richard B. Steitle
Mark S. Solomon
Ronald B. Timm
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 Corp
Original Assignee
Bayer Corp
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 Corp filed Critical Bayer Corp
Publication of CA2165140A1 publication Critical patent/CA2165140A1/fr
Abandoned 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)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Extraction Or Liquid Replacement (AREA)
CA 2165140 1995-01-05 1995-12-13 Methode pour eliminer une substance a ph basique dans un polyether-polyol Abandoned CA2165140A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US36921495A 1995-01-05 1995-01-05
US08/369,214 1995-01-05

Publications (1)

Publication Number Publication Date
CA2165140A1 true CA2165140A1 (fr) 1996-07-06

Family

ID=23454566

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2165140 Abandoned CA2165140A1 (fr) 1995-01-05 1995-12-13 Methode pour eliminer une substance a ph basique dans un polyether-polyol

Country Status (2)

Country Link
CA (1) CA2165140A1 (fr)
WO (1) WO1996020972A2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5962749A (en) * 1997-12-24 1999-10-05 Bayer Corporation Process for the removal of alkalinity in the manufacture of polyether polyols and the reuse of this alkalinity in the manufacture of polyether polyols
CN108341942A (zh) * 2017-01-22 2018-07-31 山东蓝星东大化工有限责任公司 用于碱金属催化合成的聚醚多元醇的精制方法
US10150837B2 (en) 2016-06-23 2018-12-11 Covestro Llc Processes for removing water from a polyether polyol
CN109575268A (zh) * 2018-11-02 2019-04-05 佳化化学（滨州）有限公司 一种聚醚多元醇的精制方法及精制装置

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5800711A (en) * 1996-10-18 1998-09-01 Mdv Technologies, Inc. Process for the fractionation of polyoxyalkylene block copolymers
US6376625B1 (en) * 1999-08-25 2002-04-23 The Dow Chemical Company Process for purifying polyethers
EP1303554B1 (fr) 2000-07-27 2012-08-29 Huntsman International Llc Traitement de polyol
DE102007038436A1 (de) 2007-08-16 2009-02-19 Bayer Materialscience Ag Verfahren zur Herstellung von Polyolen
DE102008011683A1 (de) 2008-02-28 2009-09-03 Bayer Materialscience Ag Verfahren zur Herstellung von Polyolen
DE102008028555A1 (de) 2008-06-16 2009-12-17 Bayer Materialscience Ag Verfahren zur Herstellung von Polyolen
CN102105510A (zh) * 2008-07-23 2011-06-22 陶氏环球技术公司 增大胺引发聚醚聚结速率的方法
DE102009043616A1 (de) 2009-09-29 2011-03-31 Bayer Materialscience Ag Verfahren zur Herstellung von aminogruppenhaltigen Polyolen
EP2365019A1 (fr) 2010-03-13 2011-09-14 Bayer MaterialScience AG Procédé destiné à la fabrication de polyols de polyéther
MX337785B (es) 2013-02-22 2016-03-18 Bayer Materialscience Ag Procedimiento de preparacion de polioles de polieter.
SG2014014567A (en) 2013-02-22 2014-09-26 Bayer Materialscience Ag Process for preparing polyether polyols
KR20190008212A (ko) 2016-05-13 2019-01-23 코베스트로 도이칠란트 아게 폴리옥시알킬렌 폴리올의 제조 방법
EP3741788A1 (fr) 2019-05-24 2020-11-25 Covestro Deutschland AG Procédé de production de mélanges de poly-oxyalkylène-polyol
EP3838963A1 (fr) 2019-12-17 2021-06-23 Covestro Deutschland AG Procédé de fabrication de polyols polyester polyoxyalkylène
WO2023057328A1 (fr) 2021-10-07 2023-04-13 Covestro Deutschland Ag Procédé de préparation de polyester polyoxyalkylène polyols
CN114031764A (zh) * 2021-10-22 2022-02-11 南京清研新材料研究院有限公司 一种聚醚的纯化方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3357738A (en) * 1965-10-11 1967-12-12 Bourlier Jean Automobile top
US3492358A (en) * 1968-04-10 1970-01-27 Dow Chemical Co Purification of ethers
US3823145A (en) * 1968-07-26 1974-07-09 Basf Wyandotte Corp Removal of impurities from polyols
DE3016113A1 (de) * 1980-04-25 1981-10-29 Bayer Ag, 5090 Leverkusen Verfahren zur aufarbeitung von polyetherpolyolen
JP3263450B2 (ja) * 1992-11-27 2002-03-04 三井化学株式会社 粗ポリオキシプロピレンポリオールの精製方法

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5962749A (en) * 1997-12-24 1999-10-05 Bayer Corporation Process for the removal of alkalinity in the manufacture of polyether polyols and the reuse of this alkalinity in the manufacture of polyether polyols
EP0926183A3 (fr) * 1997-12-24 2001-05-16 Bayer Corporation Procédé d'élimination de l'alcalinité lors de la préparation de polyétherpolyoles et réutilisation de cette alcalinité pour la préparation de polyétherpolyols
US10150837B2 (en) 2016-06-23 2018-12-11 Covestro Llc Processes for removing water from a polyether polyol
CN108341942A (zh) * 2017-01-22 2018-07-31 山东蓝星东大化工有限责任公司 用于碱金属催化合成的聚醚多元醇的精制方法
CN108341942B (zh) * 2017-01-22 2020-05-26 山东蓝星东大化工有限责任公司 用于碱金属催化合成的聚醚多元醇的精制方法
CN109575268A (zh) * 2018-11-02 2019-04-05 佳化化学（滨州）有限公司 一种聚醚多元醇的精制方法及精制装置
US11938416B2 (en) 2018-11-02 2024-03-26 Jiahua Chemistry (Binzhou) Co., Ltd. Polyether polyol refining method and refining apparatus

Also Published As

Publication number Publication date
WO1996020972A2 (fr) 1996-07-11
WO1996020972A3 (fr) 1996-09-12

Similar Documents

Publication Publication Date Title
CA2165140A1 (fr) Methode pour eliminer une substance a ph basique dans un polyether-polyol
US4482750A (en) Process for removing alkaline catalysts from polyether polyols
US5254227A (en) Process for removing catalyst impurities from polyols
KR0147818B1 (ko) 중합체로부터 더블 금속 시안화 착물 촉매의 회수 방법
EP1212370B1 (fr) Procede de preparation de polyethers
US5723637A (en) Process for producing propylene oxide
US3617546A (en) Removal of organic compounds by liquid membrane
EP0188119A1 (fr) Procédé de dessalage du pétrole brut
CN110291061B (zh) 丙烯中的废物物流改质氧化物/苯乙烯联产工艺
EP0014462B1 (fr) Procédé continuel de purification de solutions de polycarbonates
EP0376157A2 (fr) Procédé de purification de polyols contenant des catalyseurs en utilisant des résines échangeuses d'ions
US6331656B1 (en) Hydroformylation process
US5098993A (en) Method for removing alkali metal compound from crude high-molecular weight substance
CA1232858A (fr) Procede de traitement d'hydrocarbures permettant de reduire au minimum les effluents gazeux
US5039429A (en) Hypochlorite removal from waste stream effluents
WO2022054783A1 (fr) Procédé de récupération d'acide acétique
US4353810A (en) Minimizing iron in recovered oxidation catalyst material in DMT process
US5157205A (en) Process for removing aldehydes and/or vinyl esters from gaseous or liquid process streams
US3562348A (en) Production of aluminum-free hydrocarbon
US4021493A (en) Vanillin recovery process
US5865989A (en) Process for sweetening liquid hydrocarbons
US4609634A (en) High efficiency extraction method for recovering oxidation catalyst material from dimethyl terephthalate esterified oxidate residue and the like
US3953582A (en) Process for the separation of sodium azide
CA2336396A1 (fr) Procedes relatifs a l'extraction de catalyseur dans un melange reactionnel au cours de l'oxydation de cyclohexane en acide adipique
EP0394524A1 (fr) Procédé pour l'élimination et la recirculation de catalyseurs dans des courants chlorés

Legal Events

Date Code Title Description
FZDE Dead