FR2449728A2 - Uranium recovery from iron-contg. phosphate soln. - using conc. pyrophosphoric acid di:ester extractant phase - Google Patents

Uranium recovery from iron-contg. phosphate soln. - using conc. pyrophosphoric acid di:ester extractant phase

Info

Publication number
FR2449728A2
FR2449728A2 FR7904760A FR7904760A FR2449728A2 FR 2449728 A2 FR2449728 A2 FR 2449728A2 FR 7904760 A FR7904760 A FR 7904760A FR 7904760 A FR7904760 A FR 7904760A FR 2449728 A2 FR2449728 A2 FR 2449728A2
Authority
FR
France
Prior art keywords
organic phase
uranium
extn
contg
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.)
Granted
Application number
FR7904760A
Other languages
French (fr)
Other versions
FR2449728B2 (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 FR7904760A priority Critical patent/FR2449728A2/en
Publication of FR2449728A2 publication Critical patent/FR2449728A2/en
Application granted granted Critical
Publication of FR2449728B2 publication Critical patent/FR2449728B2/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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Removal Of Specific Substances (AREA)

Abstract

Parent patent describes a method of recovering uranium from phosphate solns. which comprises solvent extn. using an organic phase contg. a pyrophosphoric acid diester (I), stripping the uranium from the organic phase using an alkaline soln., adding an uranium pptn. agent (IIe to the alkaline soln. (opt. after separating the organic phase), acidifying in the presence of the organic phase, agitating, separating the aq. and organic phases, and recycling the organic phase to the solvent extn. stage. Improvement is that the concn. of the diester in the organic phase is 0.1-0.4M. Additionally, the stabilising agent, which may be added to the organic phase is a heavy alcohol. Use of 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 the stabiliser. Complete extn. of uranium from the solns. can be achieved using fewer extn. stages.
FR7904760A 1979-02-23 1979-02-23 Uranium recovery from iron-contg. phosphate soln. - using conc. pyrophosphoric acid di:ester extractant phase Granted FR2449728A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7904760A FR2449728A2 (en) 1979-02-23 1979-02-23 Uranium recovery from iron-contg. phosphate soln. - using conc. pyrophosphoric acid di:ester extractant phase

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7904760A FR2449728A2 (en) 1979-02-23 1979-02-23 Uranium recovery from iron-contg. phosphate soln. - using conc. pyrophosphoric acid di:ester extractant phase

Publications (2)

Publication Number Publication Date
FR2449728A2 true FR2449728A2 (en) 1980-09-19
FR2449728B2 FR2449728B2 (en) 1982-10-15

Family

ID=9222409

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7904760A Granted FR2449728A2 (en) 1979-02-23 1979-02-23 Uranium recovery from iron-contg. phosphate soln. - using conc. pyrophosphoric acid di:ester extractant phase

Country Status (1)

Country Link
FR (1) FR2449728A2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2866680A (en) * 1955-03-02 1958-12-30 Ray S Long Alkyl pyrophosphate metal solvent extractants and process
US2869979A (en) * 1955-08-09 1959-01-20 Robert R Grinstead Slurry solvent extraction process for the recovery of metals from solid materials
US2882123A (en) * 1955-04-18 1959-04-14 Ray S Long Process for the recovery of uranium from phosphatic ore
FR2070722A1 (en) * 1969-11-27 1971-09-17 Israel State Uranium from the decomposition of phosphate

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2866680A (en) * 1955-03-02 1958-12-30 Ray S Long Alkyl pyrophosphate metal solvent extractants and process
US2882123A (en) * 1955-04-18 1959-04-14 Ray S Long Process for the recovery of uranium from phosphatic ore
US2869979A (en) * 1955-08-09 1959-01-20 Robert R Grinstead Slurry solvent extraction process for the recovery of metals from solid materials
FR2070722A1 (en) * 1969-11-27 1971-09-17 Israel State Uranium from the decomposition of phosphate

Also Published As

Publication number Publication date
FR2449728B2 (en) 1982-10-15

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