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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 fluor

Info

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
Application number
ES532832A
Other languages
English (en)
Other versions
ES532832A0 (es
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.)
Hoechst AG
Original Assignee
Hoechst 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 Hoechst AG filed Critical Hoechst AG
Publication of ES8502060A1 publication Critical patent/ES8502060A1/es
Publication of ES532832A0 publication Critical patent/ES532832A0/es
Granted legal-status Critical Current

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)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Removal Of Specific Substances (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.
ES532832A 1983-06-23 1984-05-25 Procedimiento para la preparacion de soluciones de fosfatos de metales alcalinos pobres en fluor Granted ES532832A0 (es)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
PH21066A (en) 1987-07-10
US4620966A (en) 1986-11-04
MA20128A1 (fr) 1984-12-31
TR22223A (tr) 1986-10-07
DE3474811D1 (en) 1988-12-01
IL72182A (en) 1987-09-16
DE3322503A1 (de) 1985-01-10
JPS6011213A (ja) 1985-01-21
MX161627A (es) 1990-11-23
EP0129784A3 (en) 1986-07-30
CA1217025A (en) 1987-01-27
ZA844737B (en) 1985-02-27
BR8403015A (pt) 1985-05-28
EP0129784A2 (de) 1985-01-02
EP0129784B1 (de) 1988-10-26
ES532832A0 (es) 1985-01-01
IL72182A0 (en) 1984-10-31

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19960603