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
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.
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)
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)
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 |
-
1980
- 1980-12-04 DE DE19803045645 patent/DE3045645A1/de not_active Withdrawn
-
1981
- 1981-10-23 EP EP81108770A patent/EP0053694B1/de not_active Expired
- 1981-10-23 DE DE8181108770T patent/DE3162686D1/de not_active Expired
- 1981-10-23 AT AT81108770T patent/ATE6623T1/de not_active IP Right Cessation
- 1981-10-28 IL IL64145A patent/IL64145A/xx unknown
- 1981-11-02 CA CA000389235A patent/CA1171636A/en not_active Expired
- 1981-11-30 US US06/325,811 patent/US4394360A/en not_active Expired - Fee Related
- 1981-12-02 MA MA19551A patent/MA19347A1/fr unknown
- 1981-12-03 NO NO814122A patent/NO814122L/no unknown
- 1981-12-03 ES ES507692A patent/ES8206388A1/es not_active Expired
- 1981-12-03 ZA ZA818369A patent/ZA818369B/xx unknown
- 1981-12-04 JP JP56194605A patent/JPS57123807A/ja active Granted
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 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1503376A (en) | Solutions for cleaning surfaces of copper and its alloys | |
ES8206388A1 (es) | Procedimiento para la reduccion de hierro en solucion de acido fosforico . | |
ES8503969A1 (es) | Procedimiento para la fabricacion de un soporte para catalizadores a base de fosfatos | |
PT83354A (en) | Phosphate solutions and their use as binders | |
DE3374947D1 (en) | Treatment of solutions to facilitate the removal of ferric iron therefrom | |
ES8506573A1 (es) | Procedimiento para oxidar grupos alquilo a acidos carboxilicos | |
AU558712B2 (en) | Production of phosphoric acid from phosphate ore | |
ES449103A1 (es) | Procedimiento para la preparacion de soluciones de fosfato de metales alcalinos con bajos contenidos de vanadio. | |
ES8608450A1 (es) | Procedimiento para la reduccion de iones metalicos en solu- ciones acuosas | |
JPS56100740A (en) | Manufacture of paraoxyphenylacetic acid | |
ES473824A1 (es) | Procedimiento para el tratamiento de acido fosforico. | |
DE3167795D1 (en) | Process for the oxidation of ferrous ions to the ferric state in sulfate leach solutions | |
JPS5339971A (en) | Treating method for aged solution of chromium plating | |
IL46069A (en) | Method for the removeal of iron and copper from aqueous solutions of phosphoric acid | |
ES8604834A1 (es) | Procedimiento para la preparacion de soluciones de fosfatos de metales alcalinos,pobres en vanadio | |
JPS55128519A (en) | Enhancing of steel tapping yield | |
ES369906A1 (es) | Procedimiento para la preparacion de fosfatos alcalinos po-bres en vanadio. | |
JPS5732319A (en) | Method for dephosphorization and desulfurization of molten iron containing chromium | |
ES447972A1 (es) | Procedimiento para la preparacion de soluciones de fosfatos de metales alcalinos pobres en vanadio. | |
SE8200470L (sv) | Berare for en fosfathaltig katalysator | |
JPS56125660A (en) | Simple analyzing method for niobium, vanadium, titanium | |
HUT41328A (en) | Process for simultaneous production of pigments of iron oxide and gypsum from vitriolic pickling solution | |
JPS5476481A (en) | Treating method for waste solution containing heavy metal | |
JPS5249928A (en) | Proces for extraction of zinc silicate ore | |
JPS5423017A (en) | Manufacture of low phosphorus steel |