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BR9101428A - Processo para a producao de solucoes de fosfato de metal alcalino - Google Patents

Processo para a producao de solucoes de fosfato de metal alcalino

Info

Publication number
BR9101428A
BR9101428A BR919101428A BR9101428A BR9101428A BR 9101428 A BR9101428 A BR 9101428A BR 919101428 A BR919101428 A BR 919101428A BR 9101428 A BR9101428 A BR 9101428A BR 9101428 A BR9101428 A BR 9101428A
Authority
BR
Brazil
Prior art keywords
production
alkaline metal
metal phosphate
phosphate solutions
solutions
Prior art date
Application number
BR919101428A
Other languages
English (en)
Inventor
Guenther Dr Schimmel
Thomas Dr Staffel
Reinhard Dr Gradl
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 BR9101428A publication Critical patent/BR9101428A/pt

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)
  • Removal Of Specific Substances (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
BR919101428A 1990-04-11 1991-04-10 Processo para a producao de solucoes de fosfato de metal alcalino BR9101428A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4011716A DE4011716A1 (de) 1990-04-11 1990-04-11 Verfahren zur herstellung von alkaliphosphatloesungen

Publications (1)

Publication Number Publication Date
BR9101428A true BR9101428A (pt) 1991-11-26

Family

ID=6404213

Family Applications (1)

Application Number Title Priority Date Filing Date
BR919101428A BR9101428A (pt) 1990-04-11 1991-04-10 Processo para a producao de solucoes de fosfato de metal alcalino

Country Status (12)

Country Link
US (1) US5124137A (pt)
EP (1) EP0451511B1 (pt)
JP (1) JPH04224106A (pt)
BR (1) BR9101428A (pt)
CA (1) CA2038586A1 (pt)
DE (2) DE4011716A1 (pt)
ES (1) ES2055478T3 (pt)
IL (1) IL97809A0 (pt)
MA (1) MA22114A1 (pt)
PH (1) PH27595A (pt)
TR (1) TR24863A (pt)
ZA (1) ZA912645B (pt)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014006278B3 (de) * 2014-05-02 2015-02-26 Remondis Aqua Gmbh & Co. Kg Verfahren zur Reinigung von Roh-Phosphorsäure (z.B. MGA-Säure) durch Zugabe von Aschen aus Abfall-Verbrennungsanlagen umfassend die Gewinnung von reiner Phosphorsäure, Kalziumsulfat, wasserlöslichen Kalziumhydrogenphosphaten und Metallsalz-Lösung

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2053319A (en) * 1934-06-07 1936-09-08 Blockson Chemical Co Purifying treatment for alkali metal phosphate solutions
US2954275A (en) * 1958-01-15 1960-09-27 John N Carothers Process of recovering fluorine from phosphate rock
US3305304A (en) * 1962-11-23 1967-02-21 Hooker Chemical Corp Purification of phosphorus-containing solutions
US3493336A (en) * 1964-06-18 1970-02-03 Electric Reduction Co Manufacture of alkali metal phosphates
DE2035505C3 (de) * 1970-07-17 1974-06-12 Knapsack Ag, 5033 Huerth-Knapsack Verfahren zur Herstellung reiner Alkaliphosphatlösungen
US4086322A (en) * 1974-10-07 1978-04-25 Pennzoil Company Production of fluoride-free phosphates
US4053561A (en) * 1975-08-14 1977-10-11 Stauffer Chemical Company Removal of fluorine from phosphatic solutions
DE3322503A1 (de) * 1983-06-23 1985-01-10 Hoechst Ag, 6230 Frankfurt Verfahren zur entfluorierung von alkaliphosphatloesungen
EP0181029B1 (fr) * 1984-11-05 1991-06-12 Prayon Développement Société anonyme Procédé continu de préparation d'acide phosphorique et de sulfate de calcium

Also Published As

Publication number Publication date
ZA912645B (en) 1992-01-29
US5124137A (en) 1992-06-23
PH27595A (en) 1993-08-31
IL97809A0 (en) 1992-06-21
JPH04224106A (ja) 1992-08-13
TR24863A (tr) 1992-07-01
MA22114A1 (fr) 1991-12-31
DE4011716A1 (de) 1991-10-17
EP0451511B1 (de) 1994-05-18
ES2055478T3 (es) 1994-08-16
EP0451511A1 (de) 1991-10-16
CA2038586A1 (en) 1991-10-12
DE59101638D1 (de) 1994-06-23

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Legal Events

Date Code Title Description
FF Decision: intention to grant
FA11 Dismissal: dismissal - article 38, par. 2 of industrial property law