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GB1369304A - Purification of polyols - Google Patents

Purification of polyols

Info

Publication number
GB1369304A
GB1369304A GB1035772A GB1035772A GB1369304A GB 1369304 A GB1369304 A GB 1369304A GB 1035772 A GB1035772 A GB 1035772A GB 1035772 A GB1035772 A GB 1035772A GB 1369304 A GB1369304 A GB 1369304A
Authority
GB
United Kingdom
Prior art keywords
water
solvent
polyol
adduct
adducts
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
GB1035772A
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.)
MARLES KUHLMANN WYANDOTTE SOC
Original Assignee
MARLES KUHLMANN WYANDOTTE SOC
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 MARLES KUHLMANN WYANDOTTE SOC filed Critical MARLES KUHLMANN WYANDOTTE SOC
Priority to FR7207721A priority Critical patent/FR2174670A1/en
Priority to GB1035772A priority patent/GB1369304A/en
Priority to DE2210856A priority patent/DE2210856B2/en
Priority to NL7203009A priority patent/NL7203009A/en
Publication of GB1369304A publication Critical patent/GB1369304A/en
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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
    • C07C41/01—Preparation of ethers
    • C07C41/34—Separation; Purification; Stabilisation; Use of additives
    • C07C41/38—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Polyethers (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

1369304 Purifying polyethers SOC MARLESKUHLMANN-WYANDOTTE 6 March 1972 10357/72 Heading C2C [Also in Division C3] Polyoxyalkylene ether polyols containing water-soluble residual catalyst impurities and having a molecular weight of at least 300 and less than 65% of ethylene oxide units, are purified by forming a mixture with water and an inert solvent differing in density from water and in which the polyol is soluble to give a solution which is substantially immiscible in water, centrifugally separating the solvent/ polyol solution from the water (which retains the impurities) and recovering the polyol from the solvent. During the centrifugal separation step the solvent/polyol solution may also be simultaneously washed with counter-current water. Suitable solvents are hydrocarbons, halohydrocarbons, alcohols, ketones or ethers. Examples describe the treatment of glycerolpropylene oxide-ethylene oxide adducts of M.W. 2800, 3000, 3300, 3500, 3600 and 3700; polyoxypropylene glycols of M.W. 3000, 2000 and 750; polyoxyethylene adducts of polypropylene bases having M.W.s of 1750, 2000 and 2500; polyoxypropylene adducts of trimethylolpropane of M.W. 425, 4500 and 6000; a hydroxypropylated bisphenol A of M.W. 400; a glycerol-butylene oxide adduct of M.W. 2000; a glycerol-propylene oxide adduct of M.W. 3000; a propylene oxide adduct of pentaerythritol of M.W. 400; a polyoxypropylene adduct of ethylene diamine of M.W. 500 and a trimethylolpropane-propylene oxide-ethylene oxide adduct of M.W. 3900.
GB1035772A 1972-03-06 1972-03-06 Purification of polyols Expired GB1369304A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR7207721A FR2174670A1 (en) 1972-03-06 1972-03-06 Polyols purificn - by centrifuging a water/polyol/solvent mixt
GB1035772A GB1369304A (en) 1972-03-06 1972-03-06 Purification of polyols
DE2210856A DE2210856B2 (en) 1972-03-06 1972-03-07 Process for cleaning polyoxyalk ylenetherpoly oils
NL7203009A NL7203009A (en) 1972-03-06 1972-03-07 Purifying polyoxyalkylene ether polyols - by mixing with water and org solvent,centrifuging, and evapg solvent from polyo

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR7207721A FR2174670A1 (en) 1972-03-06 1972-03-06 Polyols purificn - by centrifuging a water/polyol/solvent mixt
GB1035772A GB1369304A (en) 1972-03-06 1972-03-06 Purification of polyols
DE2210856A DE2210856B2 (en) 1972-03-06 1972-03-07 Process for cleaning polyoxyalk ylenetherpoly oils
NL7203009A NL7203009A (en) 1972-03-06 1972-03-07 Purifying polyoxyalkylene ether polyols - by mixing with water and org solvent,centrifuging, and evapg solvent from polyo

Publications (1)

Publication Number Publication Date
GB1369304A true GB1369304A (en) 1974-10-02

Family

ID=36950917

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1035772A Expired GB1369304A (en) 1972-03-06 1972-03-06 Purification of polyols

Country Status (4)

Country Link
DE (1) DE2210856B2 (en)
FR (1) FR2174670A1 (en)
GB (1) GB1369304A (en)
NL (1) NL7203009A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0000944A1 (en) * 1977-08-31 1979-03-07 Basf Wyandotte Corporation Filtration process for purifying polyols
EP0006107A1 (en) * 1978-06-13 1980-01-09 E.I. Du Pont De Nemours And Company Method for reducing oligomeric cyclic ether content of a copolymerizate
EP0181621A2 (en) * 1984-11-13 1986-05-21 Asahi Kasei Kogyo Kabushiki Kaisha Process for purification of polyalkylene ether
WO1995016724A1 (en) * 1993-12-13 1995-06-22 Imperial Chemical Industries Plc Process for purifying polyols
WO1996011222A1 (en) * 1994-10-07 1996-04-18 Basf Aktiengesellschaft Process for extracting heteropolycompounds from polyethers, polyesters and polyether esters
US5824769A (en) * 1994-10-07 1998-10-20 Basf Aktiengesellschaft Polyether, polyester and polyether ester purification process
US5951829A (en) * 1994-10-07 1999-09-14 Basf Aktiengesellschaft Separation of heteropoly compounds from polyethers, polyesters and polyether esters
CN114031764A (en) * 2021-10-22 2022-02-11 南京清研新材料研究院有限公司 Polyether purification method

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2854437A1 (en) * 1978-12-16 1980-06-26 Bayer Ag FUELS, METHOD FOR THEIR PRODUCTION AND THEIR USE
DE2854541A1 (en) * 1978-12-16 1980-06-26 Bayer Ag METHOD FOR CLEANING NONIONIC EMULSIFIERS
JPH0680111B2 (en) * 1986-01-23 1994-10-12 三菱瓦斯化学株式会社 Method for producing low dust polycarbonate resin solution
DE3769663D1 (en) * 1986-01-23 1991-06-06 Mitsubishi Gas Chemical Co METHOD FOR PRODUCING A DEDUSTED, CLEAR SOLUTION OF A THERMOPLASTIC RESIN.
JPH0721007B2 (en) * 1986-05-24 1995-03-08 三菱瓦斯化学株式会社 Method for producing low-dust transparent thermoplastic resin solution
DE3730888A1 (en) * 1987-09-15 1989-03-30 Basf Ag METHOD FOR REDUCING THE CONTENT OF OLIGOMERIC CYCLIC ETHERS IN COPOLYMERS FROM TETRAHYDROFURANE AND 1,2-ALKYLENE OXIDES

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0000944A1 (en) * 1977-08-31 1979-03-07 Basf Wyandotte Corporation Filtration process for purifying polyols
EP0006107A1 (en) * 1978-06-13 1980-01-09 E.I. Du Pont De Nemours And Company Method for reducing oligomeric cyclic ether content of a copolymerizate
EP0181621A2 (en) * 1984-11-13 1986-05-21 Asahi Kasei Kogyo Kabushiki Kaisha Process for purification of polyalkylene ether
EP0181621A3 (en) * 1984-11-13 1988-05-11 Asahi Kasei Kogyo Kabushiki Kaisha Process for purification of polyalkylene ether
CN1052016C (en) * 1993-12-13 2000-05-03 帝国化学工业公司 Process for purifying polyols
WO1995016724A1 (en) * 1993-12-13 1995-06-22 Imperial Chemical Industries Plc Process for purifying polyols
US5449841A (en) * 1993-12-13 1995-09-12 Imperial Chemical Industries Plc Process for purifying polyols
AU679134B2 (en) * 1993-12-13 1997-06-19 Huntsman Ici Chemicals Llc Process for purifying polyols
WO1996011222A1 (en) * 1994-10-07 1996-04-18 Basf Aktiengesellschaft Process for extracting heteropolycompounds from polyethers, polyesters and polyether esters
US5824769A (en) * 1994-10-07 1998-10-20 Basf Aktiengesellschaft Polyether, polyester and polyether ester purification process
US5951829A (en) * 1994-10-07 1999-09-14 Basf Aktiengesellschaft Separation of heteropoly compounds from polyethers, polyesters and polyether esters
US5741888A (en) * 1994-10-07 1998-04-21 Basf Aktiengesellschaft Removal of heteropoly compounds from polyethers, polyesters and polyether esters
CN1071344C (en) * 1994-10-07 2001-09-19 巴斯福股份公司 Process for extracting heteropolycompounds from polyethers, polyesters and polyether esters
CN114031764A (en) * 2021-10-22 2022-02-11 南京清研新材料研究院有限公司 Polyether purification method

Also Published As

Publication number Publication date
FR2174670B1 (en) 1976-07-09
DE2210856B2 (en) 1974-01-10
DE2210856A1 (en) 1973-09-20
FR2174670A1 (en) 1973-10-19
NL7203009A (en) 1973-09-11

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years