IT8119128A0 - Purificazione dell'acido fosforico del processo ad umido. - Google Patents

Purificazione dell'acido fosforico del processo ad umido.

Info

Publication number
IT8119128A0
IT8119128A0 IT8119128A IT1912881A IT8119128A0 IT 8119128 A0 IT8119128 A0 IT 8119128A0 IT 8119128 A IT8119128 A IT 8119128A IT 1912881 A IT1912881 A IT 1912881A IT 8119128 A0 IT8119128 A0 IT 8119128A0
Authority
IT
Italy
Prior art keywords
purification
phosphoric acid
wet process
wet
phosphoric
Prior art date
Application number
IT8119128A
Other languages
English (en)
Other versions
IT1136554B (it
Inventor
Yoichi Hiraga
Osamu Watanabe
Masaki Nakatani
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 IT8119128A0 publication Critical patent/IT8119128A0/it
Application granted granted Critical
Publication of IT1136554B publication Critical patent/IT1136554B/it

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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Secondary Cells (AREA)
  • Manufacture And Refinement Of Metals (AREA)
IT19128/81A 1980-01-14 1981-01-14 Purificazione dell'acido fosforico del processo ad umido IT1136554B (it)

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
IT8119128A0 true IT8119128A0 (it) 1981-01-14
IT1136554B IT1136554B (it) 1986-09-03

Family

ID=11520886

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19128/81A IT1136554B (it) 1980-01-14 1981-01-14 Purificazione dell'acido fosforico del processo ad umido

Country Status (6)

Country Link
US (1) US4349519A (it)
JP (1) JPS56100117A (it)
ES (1) ES498503A0 (it)
IT (1) IT1136554B (it)
MA (1) MA19039A1 (it)
ZA (1) ZA808086B (it)

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 (it) 1986-04-10
ZA808086B (en) 1982-01-27
US4349519A (en) 1982-09-14
IT1136554B (it) 1986-09-03
ES8200624A1 (es) 1981-11-16
JPS56100117A (en) 1981-08-11
MA19039A1 (fr) 1981-10-01
ES498503A0 (es) 1981-11-16

Similar Documents

Publication Publication Date Title
IT8324336A0 (it) Catalizzatore per la produzione di acido metacrilico.
OA06707A (fr) Procédé de purification d'un acide phosphorique de voie humide.
IT8020478A0 (it) Metodo per la produzione diacido fosforico stabile mediante processo ad umido.
IT1092168B (it) Procedimento ed impianto per depurare acido fosforico di processo ad umido
ES522621A0 (es) Perfeccionamientos introducidos en la purificacion de acido fosforico de procedimiento en humedo.
IT1090568B (it) Procedimento ed impianto per depurare acido fosforico di processo ad umido
IT8119128A0 (it) Purificazione dell'acido fosforico del processo ad umido.
IT7820384A0 (it) Processo per la produzione di difenileteri alogenometilati.
OA07310A (fr) Procédé de purification d'acide phosphorique de voie humide.
IT7828258A0 (it) Processo per la produzione di lattulosio.
IT1087977B (it) Purificazione dell'acido fosforico.
IT7950547A0 (it) Procedimento per la produzione di acido di-n-protilacetico
IT7926786A0 (it) Processo per la produzione di acido nitrico.
IT7827946A0 (it) Processo per la produzione di acido cianurico.
IT1156955B (it) Procedimento ed apparecchio per la purificazione dell'acido fosforico ottenuto col processo ad umido
IT8220846A0 (it) Processo per la preparazione dell'acido 3-carbossi-1,4-dimetilpirrol-2-acetico.
IT1141971B (it) Procedimento per la produzione di acido fluoridrico
IT8020314A0 (it) Processo per la purificazione di glicosaminoglicani.
IT7950548A0 (it) Procedimento per la produzione di acido di-n-protilacetico
IT7927976A0 (it) Procedimento per la trasformazione di fango di rifiuto ottenuto dalla purificazione dell'acido fosforico ad umido.
IT7927013A0 (it) Ido enicillanico. procedimento per la produzione di acido 6-d-alfa-amino-p-idrossifenilacetam
IT8023364A0 (it) Processo per la produzione di alfa-6-desossi-tetracicline.
IT8148919A0 (it) Processo per la conversione di anidridi di acido
IT8021814A0 (it) Processo per la produzione di acido 3-benzoil-fenilpropionico.
IT7823108A0 (it) Processo per il trattamento di acido fosforico ottenuto mediante processo a umido.