FR2108490A5 - - Google Patents

Info

Publication number
FR2108490A5
FR2108490A5 FR7134330A FR7134330A FR2108490A5 FR 2108490 A5 FR2108490 A5 FR 2108490A5 FR 7134330 A FR7134330 A FR 7134330A FR 7134330 A FR7134330 A FR 7134330A FR 2108490 A5 FR2108490 A5 FR 2108490A5
Authority
FR
France
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
FR7134330A
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.)
Chemische Fabrik Budenhiem KG
Original Assignee
Chemische Fabrik Budenhiem KG
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 Chemische Fabrik Budenhiem KG filed Critical Chemische Fabrik Budenhiem KG
Application granted granted Critical
Publication of FR2108490A5 publication Critical patent/FR2108490A5/fr
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
    • 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)
FR7134330A 1970-09-25 1971-09-17 Expired FR2108490A5 (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
FR2108490A5 true FR2108490A5 (fr) 1972-05-19

Family

ID=5783392

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7134330A Expired FR2108490A5 (fr) 1970-09-25 1971-09-17

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
JPS5297389A (en) * 1976-02-13 1977-08-16 Toyo Soda Mfg Co Ltd Removal of sulfate ion in extracted phosphoric acid
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
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
IT938820B (it) 1973-02-10
GB1314281A (en) 1973-04-18
SE370380B (fr) 1974-10-14
US3784678A (en) 1974-01-08
DE2047261C3 (de) 1975-07-17
DE2047261B2 (de) 1974-11-28
NL7113054A (fr) 1972-03-28
DE2047261A1 (de) 1972-03-30
BE772743A (fr) 1972-01-17

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Legal Events

Date Code Title Description
ST Notification of lapse