ES8502060A1 - Procedimiento para la preparacion de soluciones de fosfatos de metales alcalinos pobres en fluor - Google Patents
Procedimiento para la preparacion de soluciones de fosfatos de metales alcalinos pobres en fluorInfo
- Publication number
- ES8502060A1 ES8502060A1 ES532832A ES532832A ES8502060A1 ES 8502060 A1 ES8502060 A1 ES 8502060A1 ES 532832 A ES532832 A ES 532832A ES 532832 A ES532832 A ES 532832A ES 8502060 A1 ES8502060 A1 ES 8502060A1
- Authority
- ES
- Spain
- Prior art keywords
- alkali metal
- solutions
- metal phosphate
- alkaliphosphate
- defluorination
- 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
Links
Classifications
-
- 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
- C01B25/30—Alkali metal phosphates
- C01B25/308—Methods for converting an alkali metal orthophosphate into another one; Purification; Decolorasing; Dehydrating; Drying
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Removal Of Specific Substances (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
METODO DE PREPARACION DE DISOLUCIONES DE FOSFATOS DE METALES ALCALINOS CON BAJO CONTENIDO EN FLUOR.CONSISTE EN MEZCLAR, A TEMPERATURAS DE 60JC A 120JC, DISOLUCIONES DE FOSFATOS DE METALES ALCALINOS NEUTRALIZADOS HASTA UN PH SUPERIOR A 6 CON UN COMPUESTO DE METAL ALCALINOTERREO, CUYA SOLUBILIDAD EN AGUA ES MENOR QUE 5 G/L, CON UN TAMAN/O DE GRANO INFERIOR A 8 2M EN MAS DE UN 50; SEGUIDA DE REACCION DURANTE 0,5-4 HORAS Y SEPARACION DEL PRECIPITADO FORMADO DE LA DISOLUCION PURIFICADA.TIENE APLICACIONES PARA LA PREPARACION DE FOSFATO DISODICO.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19833322503 DE3322503A1 (de) | 1983-06-23 | 1983-06-23 | Verfahren zur entfluorierung von alkaliphosphatloesungen |
Publications (2)
Publication Number | Publication Date |
---|---|
ES8502060A1 true ES8502060A1 (es) | 1985-01-01 |
ES532832A0 ES532832A0 (es) | 1985-01-01 |
Family
ID=6202106
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES532832A Granted ES532832A0 (es) | 1983-06-23 | 1984-05-25 | Procedimiento para la preparacion de soluciones de fosfatos de metales alcalinos pobres en fluor |
Country Status (13)
Country | Link |
---|---|
US (1) | US4620966A (es) |
EP (1) | EP0129784B1 (es) |
JP (1) | JPS6011213A (es) |
BR (1) | BR8403015A (es) |
CA (1) | CA1217025A (es) |
DE (2) | DE3322503A1 (es) |
ES (1) | ES532832A0 (es) |
IL (1) | IL72182A (es) |
MA (1) | MA20128A1 (es) |
MX (1) | MX161627A (es) |
PH (1) | PH21066A (es) |
TR (1) | TR22223A (es) |
ZA (1) | ZA844737B (es) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4011716A1 (de) * | 1990-04-11 | 1991-10-17 | Hoechst Ag | Verfahren zur herstellung von alkaliphosphatloesungen |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA573592A (en) * | 1959-04-07 | International Minerals And Chemical Corporation | Method of preparing defluorinated phosphate material | |
US1456594A (en) * | 1922-04-03 | 1923-05-29 | Grasselli Chemical Co | Process of making sodium-silico fluoride |
US2053319A (en) * | 1934-06-07 | 1936-09-08 | Blockson Chemical Co | Purifying treatment for alkali metal phosphate solutions |
US2271712A (en) * | 1939-12-19 | 1942-02-03 | Du Pont | Manufacture of sodium phosphate |
US3055733A (en) * | 1959-03-04 | 1962-09-25 | Swift & Co | Upgrading alkali metal silicofluoride |
US3625648A (en) * | 1969-12-15 | 1971-12-07 | American Cyanamid Co | Recovery of fluorine and p2o5 from dilute aqueous acidic phosphatic solutions |
US4134964A (en) * | 1974-10-04 | 1979-01-16 | Hoechst Aktiengesellschaft | Process and apparatus for purifying wet-processed phosphoric acid |
US4053561A (en) * | 1975-08-14 | 1977-10-11 | Stauffer Chemical Company | Removal of fluorine from phosphatic solutions |
SU724440A1 (ru) * | 1979-02-19 | 1980-03-30 | Ленинградский Государственный Научно-Исследовательский И Проектный Институт Основной Химической Промышленности | Способ получени обесфторенного диаммонийфосфата |
-
1983
- 1983-06-23 DE DE19833322503 patent/DE3322503A1/de not_active Withdrawn
-
1984
- 1984-01-20 BR BR8403015A patent/BR8403015A/pt not_active IP Right Cessation
- 1984-05-22 CA CA000454809A patent/CA1217025A/en not_active Expired
- 1984-05-25 ES ES532832A patent/ES532832A0/es active Granted
- 1984-05-29 MA MA20352A patent/MA20128A1/fr unknown
- 1984-06-11 US US06/619,057 patent/US4620966A/en not_active Expired - Fee Related
- 1984-06-14 EP EP84106792A patent/EP0129784B1/de not_active Expired
- 1984-06-14 DE DE8484106792T patent/DE3474811D1/de not_active Expired
- 1984-06-18 PH PH30835A patent/PH21066A/en unknown
- 1984-06-20 TR TR22223A patent/TR22223A/xx unknown
- 1984-06-21 IL IL72182A patent/IL72182A/xx unknown
- 1984-06-21 JP JP59126578A patent/JPS6011213A/ja active Pending
- 1984-06-22 ZA ZA844737A patent/ZA844737B/xx unknown
- 1984-06-22 MX MX201754A patent/MX161627A/es unknown
Also Published As
Publication number | Publication date |
---|---|
PH21066A (en) | 1987-07-10 |
IL72182A0 (en) | 1984-10-31 |
DE3322503A1 (de) | 1985-01-10 |
BR8403015A (pt) | 1985-05-28 |
JPS6011213A (ja) | 1985-01-21 |
ZA844737B (en) | 1985-02-27 |
IL72182A (en) | 1987-09-16 |
EP0129784A2 (de) | 1985-01-02 |
TR22223A (tr) | 1986-10-07 |
MA20128A1 (fr) | 1984-12-31 |
DE3474811D1 (en) | 1988-12-01 |
CA1217025A (en) | 1987-01-27 |
ES532832A0 (es) | 1985-01-01 |
EP0129784A3 (en) | 1986-07-30 |
MX161627A (es) | 1990-11-23 |
US4620966A (en) | 1986-11-04 |
EP0129784B1 (de) | 1988-10-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 19960603 |