ES2102899T3 - Procedimiento para la obtencion de sales de metales alcalinos o alcalinoterreos puras, capaces de fluir a partir de los residuos salinos de la produccion de polieterpolioles. - Google Patents

Procedimiento para la obtencion de sales de metales alcalinos o alcalinoterreos puras, capaces de fluir a partir de los residuos salinos de la produccion de polieterpolioles.

Info

Publication number
ES2102899T3
ES2102899T3 ES95102757T ES95102757T ES2102899T3 ES 2102899 T3 ES2102899 T3 ES 2102899T3 ES 95102757 T ES95102757 T ES 95102757T ES 95102757 T ES95102757 T ES 95102757T ES 2102899 T3 ES2102899 T3 ES 2102899T3
Authority
ES
Spain
Prior art keywords
alkaline
salts
polyeterpoliols
flowing
procedure
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 - Lifetime
Application number
ES95102757T
Other languages
English (en)
Inventor
Philip Dr Wiegreffe
Werner Dr Betz
Heinz Jorg Dr Rosenbaum
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
Application granted granted Critical
Publication of ES2102899T3 publication Critical patent/ES2102899T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D5/00—Sulfates or sulfites of sodium, potassium or alkali metals in general
    • C01D5/16—Purification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polyethers (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Extraction Or Liquid Replacement (AREA)

Abstract

LAS SALES ALCALINAS O ALCALINOTERREAS PURIFICADAS CON CAPACIDAD DE FLUIR, SE OBTIENEN A PARTIR DE LA ELABORACION DE POLIETER POLIOL POR MEDIO DE NEUTRALIZACION DE LA MEZCLA DE REACCIONPOLIETER POLIOL ALCALINA CON LA TORTA DE FILTRADO DISPUESTA CON ACIDOS ORGANICOS POR MEDIO DE UN PROCESO. SE CARACTERIZA PORQUE SE REALIZAN LAS SIGUIENTES ETAPAS DE PROCESO UNA DESPUES DE OTRA: A) LAS TORTAS DE FILTRADO SE EXTRAEN O SE LAVAN CON UN DISOLVENTE ORGANICO, B) LAS TORTAS DE FILTRADO EXTRAIDAS O LAVADAS SE DISUELVEN EN AGUA O EN UNA SOLUCION DE SAL ALCALINA O ALCALINOTERREA SATURADA, C) SE REALIZA UNA CRISTALIZACION DE REFRIGERACION O CRISTALIZACION DE EVAPORACION Y SE SEPARA EL PRODUCTO DE CRISTALIZACION, D) SE CONSIGUE UN SECADO DE LA SAL ALCALINA O ALCALINOTERREA CRISTALINA, ASILADA.
ES95102757T 1994-03-10 1995-02-27 Procedimiento para la obtencion de sales de metales alcalinos o alcalinoterreos puras, capaces de fluir a partir de los residuos salinos de la produccion de polieterpolioles. Expired - Lifetime ES2102899T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4408004A DE4408004A1 (de) 1994-03-10 1994-03-10 Verfahren zur Gewinnung von reinen, fließfähigen Alkali- oder Erdalkalisalzen aus den Salzrückständen der Polyetherpolyolproduktion

Publications (1)

Publication Number Publication Date
ES2102899T3 true ES2102899T3 (es) 1997-08-01

Family

ID=6512361

Family Applications (1)

Application Number Title Priority Date Filing Date
ES95102757T Expired - Lifetime ES2102899T3 (es) 1994-03-10 1995-02-27 Procedimiento para la obtencion de sales de metales alcalinos o alcalinoterreos puras, capaces de fluir a partir de los residuos salinos de la produccion de polieterpolioles.

Country Status (3)

Country Link
EP (1) EP0671361B1 (es)
DE (2) DE4408004A1 (es)
ES (1) ES2102899T3 (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2547144C (en) 2005-05-16 2010-02-02 Grain Processing Corporation Method for drying spent filter media
DE102007038436A1 (de) 2007-08-16 2009-02-19 Bayer Materialscience Ag Verfahren zur Herstellung von Polyolen
EP3574036A1 (en) * 2017-01-25 2019-12-04 Huntsman International LLC Method for the production of polyether polyols

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4137396A (en) * 1976-09-24 1979-01-30 Basf Wyandotte Corporation Filtration process for purifying polyols
JPS5770124A (en) * 1980-10-20 1982-04-30 Dai Ichi Kogyo Seiyaku Co Ltd Purification of polyether-polyol
US4535189A (en) * 1984-03-21 1985-08-13 Texaco Inc. Polyol purification process
DE3907911A1 (de) * 1989-03-11 1990-09-13 Bayer Ag Verfahren zur entfernung von katalysatoren aus polyether-polyolen

Also Published As

Publication number Publication date
EP0671361A1 (de) 1995-09-13
EP0671361B1 (de) 1997-05-02
DE4408004A1 (de) 1995-09-14
DE59500201D1 (de) 1997-06-05

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