PL440409A1 - Process for obtaining polyether polyol of low alkali metal ion content - Google Patents

Process for obtaining polyether polyol of low alkali metal ion content

Info

Publication number
PL440409A1
PL440409A1 PL440409A PL44040922A PL440409A1 PL 440409 A1 PL440409 A1 PL 440409A1 PL 440409 A PL440409 A PL 440409A PL 44040922 A PL44040922 A PL 44040922A PL 440409 A1 PL440409 A1 PL 440409A1
Authority
PL
Poland
Prior art keywords
sub
alkali metal
polyether polyol
metal ion
obtaining
Prior art date
Application number
PL440409A
Other languages
Polish (pl)
Inventor
Jerzy WACEK
Original Assignee
Pcc Rokita Spółka Akcyjna
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 Pcc Rokita Spółka Akcyjna filed Critical Pcc Rokita Spółka Akcyjna
Priority to PL440409A priority Critical patent/PL440409A1/en
Priority to HU2200443A priority patent/HUP2200443A1/en
Priority to PCT/PL2023/050009 priority patent/WO2023158327A1/en
Publication of PL440409A1 publication Critical patent/PL440409A1/en

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
    • C08G65/26—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 and other compounds
    • C08G65/2642—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 and other compounds characterised by the catalyst used
    • C08G65/2645—Metals or compounds thereof, e.g. salts
    • C08G65/2648—Alkali metals or compounds thereof
    • 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
    • C08G65/26—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 and other compounds
    • C08G65/2603—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 and other compounds the other compounds containing oxygen
    • C08G65/2606—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 and other compounds the other compounds containing oxygen containing hydroxyl groups
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/26—Phosphates
    • C01B25/38—Condensed phosphates
    • C01B25/42—Pyrophosphates
    • C01B25/425—Pyrophosphates of alkali metals
    • 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
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K15/00—Anti-oxidant compositions; Compositions inhibiting chemical change
    • C09K15/04—Anti-oxidant compositions; Compositions inhibiting chemical change containing organic compounds
    • C09K15/20—Anti-oxidant compositions; Compositions inhibiting chemical change containing organic compounds containing nitrogen and oxygen
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C08K5/005—Stabilisers against oxidation, heat, light, ozone
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/17—Amines; Quaternary ammonium compounds
    • C08K5/18—Amines; Quaternary ammonium compounds with aromatically bound amino groups

Abstract

Zgłoszenie dotyczy procesu otrzymywania poliolu polieterowego o niskiej zawartości jonów metali alkalicznych, obejmującego następujące etapy: (a) reakcję poliaddycji co najmniej jednego tlenku alkilenu do startera zawierającego co najmniej dwa aktywne atomy wodoru w obecności katalizatora będącego wodorotlenkiem metalu alkalicznego lub jego alkoksydem; (b) neutralizację surowego poliolu polieterowego otrzymanego w etapie (a) przez dodanie do mieszaniny poreakcyjnej kwaśnego pirofosforanu disodowego (Na<sub>2</sub>H<sub>2</sub>P<sub>2</sub>0<sub>7</sub>) oraz wody; (c) obniżenie zawartości wody w mieszaninie uzyskanej w etapie (b) do poziomu poniżej 0,1% wag. przez destylację pod zmniejszonym ciśnieniem; (d) usunięcie kryształów soli metali alkalicznych z mieszaniny uzyskanej w etapie (c) przez filtrację do uzyskania poliolu polieterowego o zawartości jonów metali alkalicznych nie większej niż 5 ppm. Proces według zgłoszenia umożliwia otrzymywanie polioli polieterowych o niskiej zawartości jonów metali alkalicznych, co pozwala na znaczące ograniczenie reakcji ubocznych w procesach wytwarzania tworzyw poliuretanowych.The application concerns the process of obtaining a polyether polyol with a low content of alkali metal ions, including the following stages: (a) polyaddition reaction of at least one alkylene oxide to a starter containing at least two active hydrogen atoms in the presence of a catalyst being an alkali metal hydroxide or its alkoxide; (b) neutralizing the crude polyether polyol obtained in step (a) by adding disodium acid pyrophosphate (Na<sub>2</sub>H<sub>2</sub>P<sub>2</sub>0) to the post-reaction mixture <sub>7</sub>) and water; (c) reducing the water content in the mixture obtained in step (b) to below 0.1% by weight. by distillation under reduced pressure; (d) removing crystals of alkali metal salts from the mixture obtained in step (c) by filtration to obtain a polyether polyol with an alkali metal ion content of not more than 5 ppm. The process according to the application allows obtaining polyether polyols with a low content of alkali metal ions, which allows for a significant reduction of side reactions in the processes of producing polyurethane plastics.

PL440409A 2022-02-18 2022-02-18 Process for obtaining polyether polyol of low alkali metal ion content PL440409A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PL440409A PL440409A1 (en) 2022-02-18 2022-02-18 Process for obtaining polyether polyol of low alkali metal ion content
HU2200443A HUP2200443A1 (en) 2022-02-18 2022-11-10 Process for preparation polyeter-polyol of low alkali metal ion content
PCT/PL2023/050009 WO2023158327A1 (en) 2022-02-18 2023-02-15 A process for obtaining a polyether polyol with a low content of alkali metal ions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL440409A PL440409A1 (en) 2022-02-18 2022-02-18 Process for obtaining polyether polyol of low alkali metal ion content

Publications (1)

Publication Number Publication Date
PL440409A1 true PL440409A1 (en) 2023-08-21

Family

ID=86099730

Family Applications (1)

Application Number Title Priority Date Filing Date
PL440409A PL440409A1 (en) 2022-02-18 2022-02-18 Process for obtaining polyether polyol of low alkali metal ion content

Country Status (3)

Country Link
HU (1) HUP2200443A1 (en)
PL (1) PL440409A1 (en)
WO (1) WO2023158327A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0693513B1 (en) * 1994-07-18 2001-01-10 Asahi Glass Company Ltd. Process for purifying a polyether
DE60110587T2 (en) * 2000-05-15 2006-01-19 Shell Internationale Research Maatschappij B.V. PROCESS FOR PREPARING POLYEHTER POLYOLS
CN1293121C (en) * 2004-12-30 2007-01-03 锦化化工（集团）有限责任公司 Polyether polyatomic alcohol preparation for subfluoride hard foamed material
CN1293113C (en) * 2005-05-25 2007-01-03 李文祥 Method for preparing polyether glycol in use for hard bubble of polyurethane in non-freon foaming system

Also Published As

Publication number Publication date
WO2023158327A1 (en) 2023-08-24
HUP2200443A1 (en) 2023-08-28

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