BE772743A - Procede pour eliminer le fer de l'acide phosphorique, et produits obtenus - Google Patents

Procede pour eliminer le fer de l'acide phosphorique, et produits obtenus

Info

Publication number
BE772743A
BE772743A BE772743A BE772743A BE772743A BE 772743 A BE772743 A BE 772743A BE 772743 A BE772743 A BE 772743A BE 772743 A BE772743 A BE 772743A BE 772743 A BE772743 A BE 772743A
Authority
BE
Belgium
Prior art keywords
phosphoric acid
products obtained
removing iron
iron
products
Prior art date
Application number
BE772743A
Other languages
English (en)
Original Assignee
Budenheim Rud A Oetker Chemie
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 Budenheim Rud A Oetker Chemie filed Critical Budenheim Rud A Oetker Chemie
Publication of BE772743A publication Critical patent/BE772743A/fr

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
    • 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
    • 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)
  • Inorganic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Removal Of Specific Substances (AREA)
BE772743A 1970-09-25 1971-09-17 Procede pour eliminer le fer de l'acide phosphorique, et produits obtenus BE772743A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2047261A DE2047261C3 (de) 1970-09-25 1970-09-25 Verfahren zur Entfernung von Eisen aus Phosphorsäure

Publications (1)

Publication Number Publication Date
BE772743A true BE772743A (fr) 1972-01-17

Family

ID=5783392

Family Applications (1)

Application Number Title Priority Date Filing Date
BE772743A BE772743A (fr) 1970-09-25 1971-09-17 Procede pour eliminer le fer de l'acide phosphorique, et produits obtenus

Country Status (8)

Country Link
US (1) US3784678A (fr)
BE (1) BE772743A (fr)
DE (1) DE2047261C3 (fr)
FR (1) FR2108490A5 (fr)
GB (1) GB1314281A (fr)
IT (1) IT938820B (fr)
NL (1) NL7113054A (fr)
SE (1) SE370380B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4070443A (en) * 1976-02-13 1978-01-24 Toyo Soda Manufacturing Co., Ltd. Process for removing sulfate ions from extracted phosphoric acid with a barium compound
JPS5297389A (en) * 1976-02-13 1977-08-16 Toyo Soda Mfg Co Ltd Removal of sulfate ion in extracted phosphoric acid
US4190634A (en) * 1978-05-08 1980-02-26 Monsanto Company Purifying phosphoric acid by extraction with an aliphatic nitrile
FR2437377A1 (fr) * 1978-09-29 1980-04-25 Rhone Poulenc Ind Procede d'obtention d'un acide phosphorique desulfate pour usage alimentaire
WO2022182909A1 (fr) * 2021-02-25 2022-09-01 Jesa Technologies Llc Méthode d'élimination de métaux lourds dans la fabrication d'acide phosphorique

Also Published As

Publication number Publication date
GB1314281A (en) 1973-04-18
IT938820B (it) 1973-02-10
NL7113054A (fr) 1972-03-28
SE370380B (fr) 1974-10-14
DE2047261A1 (de) 1972-03-30
US3784678A (en) 1974-01-08
FR2108490A5 (fr) 1972-05-19
DE2047261B2 (de) 1974-11-28
DE2047261C3 (de) 1975-07-17

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