ZA808086B - Purification of wet process phosphoric acid - Google Patents

Purification of wet process phosphoric acid

Info

Publication number
ZA808086B
ZA808086B ZA00808086A ZA808086A ZA808086B ZA 808086 B ZA808086 B ZA 808086B ZA 00808086 A ZA00808086 A ZA 00808086A ZA 808086 A ZA808086 A ZA 808086A ZA 808086 B ZA808086 B ZA 808086B
Authority
ZA
South Africa
Prior art keywords
purification
phosphoric acid
wet process
process phosphoric
wet
Prior art date
Application number
ZA00808086A
Other languages
English (en)
Inventor
Yoichi Hiraga
Hiraga Yoichi
Masaki Nakatani
Nakatani Masaki
Osamu Watanabe
Watanabe Osamu
Original Assignee
Toyo Soda Mfg 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 Mfg Co Ltd filed Critical Toyo Soda Mfg Co Ltd
Publication of ZA808086B publication Critical patent/ZA808086B/xx

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
ZA00808086A 1980-01-14 1980-12-29 Purification of wet process phosphoric acid ZA808086B (en)

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 (1)

Publication Number Publication Date
ZA808086B true ZA808086B (en) 1982-01-27

Family

ID=11520886

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00808086A ZA808086B (en) 1980-01-14 1980-12-29 Purification of wet process phosphoric acid

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
JPS6112845B2 (es) 1986-04-10
ES498503A0 (es) 1981-11-16
JPS56100117A (en) 1981-08-11
ES8200624A1 (es) 1981-11-16
IT8119128A0 (it) 1981-01-14
US4349519A (en) 1982-09-14
IT1136554B (it) 1986-09-03
MA19039A1 (fr) 1981-10-01

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