ES8200624A1 - Procedimiento para purificar un acido fosforico por via hu- meda - Google Patents

Procedimiento para purificar un acido fosforico por via hu- meda

Info

Publication number
ES8200624A1
ES8200624A1 ES498503A ES498503A ES8200624A1 ES 8200624 A1 ES8200624 A1 ES 8200624A1 ES 498503 A ES498503 A ES 498503A ES 498503 A ES498503 A ES 498503A ES 8200624 A1 ES8200624 A1 ES 8200624A1
Authority
ES
Spain
Prior art keywords
battery
phosphoric acid
wet process
discharging
process phosphoric
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
ES498503A
Other languages
English (en)
Other versions
ES498503A0 (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.)
Tosoh Corp
Original Assignee
Toyo Soda Manufacturing Co Ltd
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 Toyo Soda Manufacturing Co Ltd filed Critical Toyo Soda Manufacturing Co Ltd
Publication of ES498503A0 publication Critical patent/ES498503A0/es
Publication of ES8200624A1 publication Critical patent/ES8200624A1/es
Expired 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
    • C01B25/46—Preparation involving solvent-solvent extraction
    • C01B25/461—Preparation involving solvent-solvent extraction the phosphoric acid present in the medium obtained after reaction being first extracted from the liquid phase formed or separated then re-extracted as free acid by using water or as a phosphate by using a basic compound
    • C01B25/462—Preparation involving solvent-solvent extraction the phosphoric acid present in the medium obtained after reaction being first extracted from the liquid phase formed or separated then re-extracted as free acid by using water or as a phosphate by using a basic compound the extracting agent being alcohol or a mixture of alcohols

Abstract

PROCEDIMIENTO PARA LA PURIFICACION DE ACIDO FOSFORICO OBTENIDO POR VIA HUMEDA, MEDIANTE EXTRACCION CON N-BUTANOL Y-O ISOBUTANOL. CONSISTE EN INTRODUCIR ACIDO FOSFORICO OBTENIDO POR VIA HUMEDA, CON UNA CONCENTRACIO DE P2O5 SUPERIOR A 35 POR 100, EN UNA BACTERIA DE EXTRACCION; AÑADIR ACIDO SULFURICO A AL QUINTA ETAPA O A UNA DE ORDEN SUPERIOR Y EN LA SEGUNDA ETAPA O EN UNA SUPERIOR A PARTIR DE LA OPERACION DE DESCARGA DEL REFINADO EN LA BACTERIA DE EXTRACCION, EN CANTIDAD EQUIVALENTE EN GRAMOS A 1,2 A 2,0 VECES LAS IMPUREZAS CATIONICAS DEL ACIDO A PURIFICAR, MAS EL SODIO, POSTASIO Y MAGNESIO, AÑADIDOS A LA BACTERIA DE PURIFICACION. DESCARGAR LA DISOLUCION EXTRAIDA Y AÑADIR AL MENOS UNO DE LOS COMPUESTO DE SODIO, POTASIO Y MAGNESIO EN LA SEGUNDA ETAPA, PARA OBTENER POR LO MENOS 0,4 GRAMOS, EQUIVALENTE POR LITRO DE SODIO, POTASIO Y MAGNESIO EN LA FASE ACUOSA.
ES498503A 1980-01-14 1981-01-14 Procedimiento para purificar un acido fosforico por via hu- meda Expired ES8200624A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP213580A JPS56100117A (en) 1980-01-14 1980-01-14 Purifying method for wet process phosphoric acid

Publications (2)

Publication Number Publication Date
ES498503A0 ES498503A0 (es) 1981-11-16
ES8200624A1 true ES8200624A1 (es) 1981-11-16

Family

ID=11520886

Family Applications (1)

Application Number Title Priority Date Filing Date
ES498503A Expired ES8200624A1 (es) 1980-01-14 1981-01-14 Procedimiento para purificar un acido fosforico por via hu- meda

Country Status (6)

Country Link
US (1) US4349519A (es)
JP (1) JPS56100117A (es)
ES (1) ES8200624A1 (es)
IT (1) IT1136554B (es)
MA (1) MA19039A1 (es)
ZA (1) ZA808086B (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4543239A (en) * 1984-08-21 1985-09-24 International Minerals & Chemical Corp. Phosphoric acid extraction process
US4643883A (en) * 1986-01-22 1987-02-17 International Minerals & Chemical Corp. Method of decolorizing wet process phosphoric acid
DE3705069A1 (de) * 1987-02-18 1988-09-01 Hoechst Ag Verfahren zur herstellung titanfreier phosphorsaeure

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1929441A (en) * 1930-08-26 1933-10-10 American Agricultural Chem Co Process for obtaining orthophosphoric acid and/or conversion product thereof
GB464370A (en) * 1935-04-30 1937-04-16 Pulverfabrik Skodawerke Wetzle Improvements in and relating to processes for the purification of crude phosphoric acid
FR1531487A (fr) * 1967-05-11 1968-07-05 Pechiney Saint Gobain Procédé continu perfectionné de purification de l'acide phosphorique par les solvants
US4118462A (en) * 1974-02-01 1978-10-03 Rhone-Poulenc Industries Process for the preparation of purified phosphoric solutions from phosphoric acid
DE2433307C3 (de) * 1974-07-11 1984-03-22 Chemische Fabrik Budenheim Rudolf A. Oetker, 6501 Budenheim Verfahren zur Abtrennung eines Phosphorsäure-organisches Lösungsmittel-Wasser-Gemisches
DE2605106C2 (de) 1976-02-10 1984-06-14 Hoechst Ag, 6230 Frankfurt Verfahren und Vorrichtung zur Herstellung von alkoholischen Phosphorsäurelösungen aus sauren Phosphaten

Also Published As

Publication number Publication date
ES498503A0 (es) 1981-11-16
US4349519A (en) 1982-09-14
IT8119128A0 (it) 1981-01-14
JPS6112845B2 (es) 1986-04-10
JPS56100117A (en) 1981-08-11
IT1136554B (it) 1986-09-03
MA19039A1 (fr) 1981-10-01
ZA808086B (en) 1982-01-27

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19970303