FR2449652A2 - Uranium recovery from iron-contg. phosphate - using conc. di:alkyl:pyrophosphoric acid extractant phase contg. heavy alcohol solubiliser (J5 2.9.80) - Google Patents

Uranium recovery from iron-contg. phosphate - using conc. di:alkyl:pyrophosphoric acid extractant phase contg. heavy alcohol solubiliser (J5 2.9.80)

Info

Publication number
FR2449652A2
FR2449652A2 FR7904761A FR7904761A FR2449652A2 FR 2449652 A2 FR2449652 A2 FR 2449652A2 FR 7904761 A FR7904761 A FR 7904761A FR 7904761 A FR7904761 A FR 7904761A FR 2449652 A2 FR2449652 A2 FR 2449652A2
Authority
FR
France
Prior art keywords
contg
uranium
extn
organic phase
iron
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.)
Pending
Application number
FR7904761A
Other languages
French (fr)
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 FR7904761A priority Critical patent/FR2449652A2/en
Priority to US06/017,164 priority patent/US4311676A/en
Priority to MA18791A priority patent/MA18591A1/en
Priority to JP12934179A priority patent/JPS55113629A/en
Priority to ES485543A priority patent/ES485543A1/en
Priority to OA57036A priority patent/OA06476A/en
Publication of FR2449652A2 publication Critical patent/FR2449652A2/en
Pending 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)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

The parent patent describes a method of recovering uranium from phospahte cpds. by solvent extn. with an organic phase contg. a dialkyl pyrophosphoric acid (I) and >=1 mole (per mole of (I)) of a solubilising agent for the double uranium ammonium dialkylpyrophosphate. The process includes the steps of passing excess anhydrous ammonia into uranium-contg. organic past to ppte. the ammonium salt of (I) and separating the pptd. salt from the organic phase. In the present invention, the improvement is that the concn. of (I) in the organic phase if 0.1-0.4 (pref. 0.15-0.25) M and the solubilising agent is a heavy alcohol. Use of the a high concn. of (I) in the organic phase favours extn. of uranium rather than iron from phospahte solns., even when a heavy alcohol is used as solubilising agent. Complete extn. of uranium from 30% phosphoric acid solns. can be achieved using fewer extn. stages.
FR7904761A 1978-09-08 1979-02-23 Uranium recovery from iron-contg. phosphate - using conc. di:alkyl:pyrophosphoric acid extractant phase contg. heavy alcohol solubiliser (J5 2.9.80) Pending FR2449652A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR7904761A FR2449652A2 (en) 1979-02-23 1979-02-23 Uranium recovery from iron-contg. phosphate - using conc. di:alkyl:pyrophosphoric acid extractant phase contg. heavy alcohol solubiliser (J5 2.9.80)
US06/017,164 US4311676A (en) 1978-09-08 1979-03-02 Process for the recovery of uranium contained in phosphated compounds
MA18791A MA18591A1 (en) 1979-02-23 1979-09-19 PROCESS FOR THE RECOVERY OF URANIUM CONTAINED IN PHOSPHATE COMPOUNDS
JP12934179A JPS55113629A (en) 1979-02-23 1979-10-05 Recovery of uranium in phosphate compound
ES485543A ES485543A1 (en) 1979-02-23 1979-10-30 Recovery of uranium in phosphate compound
OA57036A OA06476A (en) 1979-02-23 1980-02-23 Process for the recovery of uranium contained in phosphate compounds.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7904761A FR2449652A2 (en) 1979-02-23 1979-02-23 Uranium recovery from iron-contg. phosphate - using conc. di:alkyl:pyrophosphoric acid extractant phase contg. heavy alcohol solubiliser (J5 2.9.80)

Publications (1)

Publication Number Publication Date
FR2449652A2 true FR2449652A2 (en) 1980-09-19

Family

ID=9222410

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7904761A Pending FR2449652A2 (en) 1978-09-08 1979-02-23 Uranium recovery from iron-contg. phosphate - using conc. di:alkyl:pyrophosphoric acid extractant phase contg. heavy alcohol solubiliser (J5 2.9.80)

Country Status (5)

Country Link
JP (1) JPS55113629A (en)
ES (1) ES485543A1 (en)
FR (1) FR2449652A2 (en)
MA (1) MA18591A1 (en)
OA (1) OA06476A (en)

Cited By (2)

* 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

Cited By (2)

* 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

Also Published As

Publication number Publication date
MA18591A1 (en) 1980-04-01
ES485543A1 (en) 1980-05-16
JPS55113629A (en) 1980-09-02
OA06476A (en) 1981-07-31

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