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
Links
- 238000000034 method Methods 0.000 title abstract 2
- 229910052751 metal Inorganic materials 0.000 title 1
- 239000002184 metal Substances 0.000 title 1
- 150000002739 metals Chemical class 0.000 title 1
- 150000003839 salts Chemical class 0.000 title 1
- 239000002699 waste material Substances 0.000 title 1
- 238000002425 crystallisation Methods 0.000 abstract 3
- 230000008025 crystallization Effects 0.000 abstract 3
- 239000012065 filter cake Substances 0.000 abstract 2
- 238000001035 drying Methods 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 230000008020 evaporation Effects 0.000 abstract 1
- 159000000011 group IA salts Chemical class 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000006386 neutralization reaction Methods 0.000 abstract 1
- 239000003960 organic solvent Substances 0.000 abstract 1
- 229920005862 polyol Polymers 0.000 abstract 1
- 150000003077 polyols Chemical class 0.000 abstract 1
- 239000000047 product Substances 0.000 abstract 1
- 238000005057 refrigeration Methods 0.000 abstract 1
- 239000012266 salt solution Substances 0.000 abstract 1
- 229920006395 saturated elastomer Polymers 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
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)
- Extraction Or Liquid Replacement (AREA)
- Manufacture And Refinement Of Metals (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.
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)
| 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 |
| CN110325567B (zh) * | 2017-01-25 | 2022-02-11 | 亨茨曼国际有限公司 | 生产聚醚多元醇的方法 |
Family Cites Families (4)
| 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 |
-
1994
- 1994-03-10 DE DE4408004A patent/DE4408004A1/de not_active Withdrawn
-
1995
- 1995-02-27 ES ES95102757T patent/ES2102899T3/es not_active Expired - Lifetime
- 1995-02-27 EP EP95102757A patent/EP0671361B1/de not_active Expired - Lifetime
- 1995-02-27 DE DE59500201T patent/DE59500201D1/de not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE59500201D1 (de) | 1997-06-05 |
| DE4408004A1 (de) | 1995-09-14 |
| EP0671361A1 (de) | 1995-09-13 |
| EP0671361B1 (de) | 1997-05-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG2A | Definitive protection |
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