FR2435444B1 - - Google Patents

Info

Publication number
FR2435444B1
FR2435444B1 FR7825815A FR7825815A FR2435444B1 FR 2435444 B1 FR2435444 B1 FR 2435444B1 FR 7825815 A FR7825815 A FR 7825815A FR 7825815 A FR7825815 A FR 7825815A FR 2435444 B1 FR2435444 B1 FR 2435444B1
Authority
FR
France
Prior art keywords
dialkyl
pyrophosphoric acid
organic phase
uranium
ammonium
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
FR7825815A
Other languages
French (fr)
Other versions
FR2435444A1 (en
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.)
Minemet Recherche SA
Original Assignee
Minemet Recherche SA
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 Minemet Recherche SA filed Critical Minemet Recherche SA
Priority to FR7825815A priority Critical patent/FR2435444A1/en
Priority to US06/017,164 priority patent/US4311676A/en
Priority to EP79400627A priority patent/EP0011516B1/en
Priority to DE7979400627T priority patent/DE2966225D1/en
Priority to AT79400627T priority patent/ATE4794T1/en
Publication of FR2435444A1 publication Critical patent/FR2435444A1/en
Application granted granted Critical
Publication of FR2435444B1 publication Critical patent/FR2435444B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B60/00—Obtaining metals of atomic number 87 or higher, i.e. radioactive metals
    • C22B60/02—Obtaining thorium, uranium, or other actinides
    • C22B60/0204—Obtaining thorium, uranium, or other actinides obtaining uranium
    • C22B60/0217—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes
    • C22B60/0252—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes treatment or purification of solutions or of liquors or of slurries
    • C22B60/026—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes treatment or purification of solutions or of liquors or of slurries liquid-liquid extraction with or without dissolution in organic solvents

Landscapes

  • Engineering & Computer Science (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Manufacturing & Machinery (AREA)
  • Environmental & Geological Engineering (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

1. A process for recovering the uranium present in phosphate compounds by means of an organic phase containing a dialkyl-pyrophosphoric acid, characterized in that said organic phase also contains at least one mol of a solubilising agent for uranium ammonium dialkyl-pyrophosphate per mol of dialkyl-pyrophosphoric acid, and in that the process comprises the following steps, carried out at a temperature not exceeding 50 degrees C : a) bubbling anhydrous ammonia gas into the organic phase already charged with uranium, to precipitate the ammonium salt of the excess dialkyl-pyrophosphoric acid ; and, b) effecting a liquid-solid separation to separate from the organic phase the ammonium salt of the dialkyl-pyrophosphoric acid precipitated in the course of the previous step a), said solubilising agent for the uranium ammonium dialkyl-pyrophosphate being a liposoluble compound which possesses electron pairs capable of forming hydrogen bonds with the pyrophosphoric acid diesters.
FR7825815A 1978-09-08 1978-09-08 PROCESS FOR THE RECOVERY OF URANIUM CONTAINED IN PHOSPHATE COMPOUNDS Granted FR2435444A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR7825815A FR2435444A1 (en) 1978-09-08 1978-09-08 PROCESS FOR THE RECOVERY OF URANIUM CONTAINED IN PHOSPHATE COMPOUNDS
US06/017,164 US4311676A (en) 1978-09-08 1979-03-02 Process for the recovery of uranium contained in phosphated compounds
EP79400627A EP0011516B1 (en) 1978-09-08 1979-09-07 Process for the recuperation of uranium present in phosphatic compounds
DE7979400627T DE2966225D1 (en) 1978-09-08 1979-09-07 Process for the recuperation of uranium present in phosphatic compounds
AT79400627T ATE4794T1 (en) 1978-09-08 1979-09-07 PROCESS FOR RECOVERING URANIUM CONTAINED IN PHOSPHATE COMPOUNDS.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7825815A FR2435444A1 (en) 1978-09-08 1978-09-08 PROCESS FOR THE RECOVERY OF URANIUM CONTAINED IN PHOSPHATE COMPOUNDS

Publications (2)

Publication Number Publication Date
FR2435444A1 FR2435444A1 (en) 1980-04-04
FR2435444B1 true FR2435444B1 (en) 1981-01-16

Family

ID=9212434

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7825815A Granted FR2435444A1 (en) 1978-09-08 1978-09-08 PROCESS FOR THE RECOVERY OF URANIUM CONTAINED IN PHOSPHATE COMPOUNDS

Country Status (4)

Country Link
EP (1) EP0011516B1 (en)
AT (1) ATE4794T1 (en)
DE (1) DE2966225D1 (en)
FR (1) FR2435444A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4652432A (en) * 1981-02-26 1987-03-24 Prodeco, Inc. Process for recovering uranium using an alkyl pyrophosphoric acid and alkaline stripping solution
US4652431A (en) * 1981-02-26 1987-03-24 Prodeco, Inc. Process for recovering uranium using an alkyl pyrophosphoric acid and alkaline stripping solution
US4490336A (en) * 1981-05-27 1984-12-25 Prodeco, Inc. Process for stripping uranium from an alkyl pyrophosphoric acid
FR2531697B1 (en) * 1982-08-12 1985-06-28 Pechiney Ugine Kuhlmann Uran PROCESS FOR THE VALORIZATION OF URANIUM AND RARE EARTHS CONTAINED IN IMPURED UF4 FROM EXTRACTION OF URANIUM FROM PHOSPHORIC ACID
DE3311245A1 (en) * 1983-03-28 1984-10-04 Chemische Fabrik Budenheim Rudolf A. Oetker, 6501 Budenheim Method of separating uranium from phosphoric acids

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2830872A (en) * 1952-10-03 1958-04-15 Robert F Mccullough Recovery of uranium values from phosphate rock
US2866680A (en) * 1955-03-02 1958-12-30 Ray S Long Alkyl pyrophosphate metal solvent extractants and process
US2883123A (en) * 1955-08-11 1959-04-21 Joseph C Finnigan Safety apparatus for use on a motor vehicle

Also Published As

Publication number Publication date
EP0011516B1 (en) 1983-09-28
ATE4794T1 (en) 1983-10-15
DE2966225D1 (en) 1983-11-03
FR2435444A1 (en) 1980-04-04
EP0011516A1 (en) 1980-05-28

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Legal Events

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ST Notification of lapse