ES8206388A1 - Procedimiento para la reduccion de hierro en solucion de acido fosforico . - Google Patents

Procedimiento para la reduccion de hierro en solucion de acido fosforico .

Info

Publication number
ES8206388A1
ES8206388A1 ES507692A ES507692A ES8206388A1 ES 8206388 A1 ES8206388 A1 ES 8206388A1 ES 507692 A ES507692 A ES 507692A ES 507692 A ES507692 A ES 507692A ES 8206388 A1 ES8206388 A1 ES 8206388A1
Authority
ES
Spain
Prior art keywords
acid solution
phosphoric
reducing iron
reductant
trivalent
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
ES507692A
Other languages
English (en)
Other versions
ES507692A0 (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 ES507692A0 publication Critical patent/ES507692A0/es
Publication of ES8206388A1 publication Critical patent/ES8206388A1/es
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B60/00—Obtaining metals of atomic number 87 or higher, i.e. radioactive metals
    • C22B60/02—Obtaining thorium, uranium, or other actinides
    • C22B60/0204—Obtaining thorium, uranium, or other actinides obtaining uranium
    • C22B60/0217—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes
    • C22B60/0252—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes treatment or purification of solutions or of liquors or of slurries
    • C22B60/0278—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes treatment or purification of solutions or of liquors or of slurries by chemical methods
    • C22B60/0282—Solutions containing P ions, e.g. treatment of solutions resulting from the leaching of phosphate ores or recovery of uranium from wet-process phosphoric acid
    • 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
    • C01B25/18—Phosphoric acid
    • C01B25/234—Purification; Stabilisation; Concentration
    • C01B25/237—Selective elimination of impurities
    • C01B25/238—Cationic impurities, e.g. arsenic compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • General Chemical & Material Sciences (AREA)
  • Removal Of Specific Substances (AREA)
  • Catalysts (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Compounds Of Iron (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Abstract

PROCEDIMIENTO PARA LA REDICCION DE HIERRO EN SOLUCION DE ACIDO FOSFORICO, DESDE LA ETAPA DE OXIDACION TRIVALENTE A LA DIVALENTE CON AYUDA DE UN AGENTE REDUCTOR. CARACTERIZADO PORQUE COMO AGENTE REDUCTOR SE EMPLEA FOSFORO ROJO, SIENDO LA REDUCCION EN PRESENCIA DE COBRE; PORQUE EL COBRE SE EMPLEA EN ESTADO DISUELTO EN SOLUCCION DE ACIDO FOSFORICO EN CANTIDADES COMPRENDIDAS ENTRE 5 Y 100 PPM, REFERIDAS A LA SOLUCION; PORQUE LA REDUCCION SE REALIZA A UNA TEMPERATURA COMPRENDIDA ENTRE 10 Y 90 C., Y PORQUE LA SOLUCION DE ACIDO FOSFORICO, QUE CONTIENE HIERRO, SE DEJA EN CONTACTO CON EL FOSFORO ROJO DURANTE 1 O 30 MINUTOS, ELIGIENDOSE UN TIEMPO MAS CORTO DE CONTACTO CON TEMPERATURA CRECIENTE Y CONCENTRACION DECRECIENTE DE ACIDO FOSFORICO EN LA SOLUCION, Y A LA INVERSA.
ES507692A 1980-12-04 1981-12-03 Procedimiento para la reduccion de hierro en solucion de acido fosforico . Expired ES8206388A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803045645 DE3045645A1 (de) 1980-12-04 1980-12-04 Verfahren zur reduktion von eisen in phospharsaurer loesung

Publications (2)

Publication Number Publication Date
ES507692A0 ES507692A0 (es) 1982-09-01
ES8206388A1 true ES8206388A1 (es) 1982-09-01

Family

ID=6118240

Family Applications (1)

Application Number Title Priority Date Filing Date
ES507692A Expired ES8206388A1 (es) 1980-12-04 1981-12-03 Procedimiento para la reduccion de hierro en solucion de acido fosforico .

Country Status (11)

Country Link
US (1) US4394360A (es)
EP (1) EP0053694B1 (es)
JP (1) JPS57123807A (es)
AT (1) ATE6623T1 (es)
CA (1) CA1171636A (es)
DE (2) DE3045645A1 (es)
ES (1) ES8206388A1 (es)
IL (1) IL64145A (es)
MA (1) MA19347A1 (es)
NO (1) NO814122L (es)
ZA (1) ZA818369B (es)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4816241A (en) * 1982-02-16 1989-03-28 J. R. Simplot Co. Gaseous reduction of phosphoric acid
FR2557090B1 (fr) * 1983-12-23 1986-04-11 Pechiney Uranium Procede de purification de l'acide phosphorique de voie humide par elimination du cadmium
DE3437686C2 (de) * 1984-10-15 1986-10-02 Hoechst Ag, 6230 Frankfurt Verfahren zur Reduktion von Metallionen in wäßrigen Lösungen
DE3437689A1 (de) * 1984-10-15 1986-04-17 Hoechst Ag, 6230 Frankfurt Vorrichtung zur reduktion von eisen und vanadium in phosphorsaurer loesung
DE3437684C1 (de) * 1984-10-15 1986-06-05 Hoechst Ag, 6230 Frankfurt Verfahren zur Reduktion von Eisen und Vanadium in phosphorsaurer Lösung
GB201221425D0 (en) * 2012-11-28 2013-01-09 Faradion Ltd Metal-containing compound

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1065388B (es) 1959-09-17
AT151948B (de) 1936-09-21 1937-12-10 Persil Ges Henkel & Voith M B Verfahren zur Herstellung von handelsüblich reinen Alkali-Phosphaten.
DE1567619C3 (de) * 1965-05-15 1974-08-15 Knapsack Ag, 5033 Huerth-Knapsack Verfahren zur Herstellung von vanadiumarmen Alkaliphosphaten
US3421845A (en) * 1965-06-07 1969-01-14 Hooker Chemical Corp Production of sodium phosphates
GB1267853A (en) * 1969-07-16 1972-03-22 Knapsack Ag Process for the manufacture of alkali metal phosphates of low vanadium content
DE2528895B2 (de) * 1975-06-28 1978-04-13 Hoechst Ag, 6000 Frankfurt Verfahren zur Herstellung vanadiumarmer Alkaliphosphatlösungen

Also Published As

Publication number Publication date
ES507692A0 (es) 1982-09-01
ZA818369B (en) 1982-11-24
NO814122L (no) 1982-06-07
CA1171636A (en) 1984-07-31
DE3162686D1 (en) 1984-04-19
JPS57123807A (en) 1982-08-02
DE3045645A1 (de) 1982-07-22
IL64145A (en) 1984-05-31
EP0053694B1 (de) 1984-03-14
JPS6121165B2 (es) 1986-05-26
ATE6623T1 (de) 1984-03-15
US4394360A (en) 1983-07-19
MA19347A1 (fr) 1982-07-01
EP0053694A1 (de) 1982-06-16
IL64145A0 (en) 1982-01-31

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