FR2432554A1 - Oxidative pressure leaching of uranium minerals - using potassium carbonate-bi:carbonate liquor to improve uranium yield - Google Patents

Oxidative pressure leaching of uranium minerals - using potassium carbonate-bi:carbonate liquor to improve uranium yield

Info

Publication number
FR2432554A1
FR2432554A1 FR7823206A FR7823206A FR2432554A1 FR 2432554 A1 FR2432554 A1 FR 2432554A1 FR 7823206 A FR7823206 A FR 7823206A FR 7823206 A FR7823206 A FR 7823206A FR 2432554 A1 FR2432554 A1 FR 2432554A1
Authority
FR
France
Prior art keywords
uranium
carbonate
pressure leaching
yield
improve
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
FR7823206A
Other languages
French (fr)
Other versions
FR2432554B1 (en
Inventor
Pierre Maurel
Francois Nicolas
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.)
Pechiney Ugine Kuhlmann SA
Original Assignee
Pechiney Ugine Kuhlmann 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 Pechiney Ugine Kuhlmann SA filed Critical Pechiney Ugine Kuhlmann SA
Priority to FR7823206A priority Critical patent/FR2432554A1/en
Publication of FR2432554A1 publication Critical patent/FR2432554A1/en
Application granted granted Critical
Publication of FR2432554B1 publication Critical patent/FR2432554B1/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
    • C22B60/0221—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes by leaching
    • C22B60/0247—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes by leaching using basic solutions or liquors

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)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

In the oxidative pressure leaching of uranium minerals using an aq. (bi)carbonate leach liquor in the presence of free oxygen, the liquor contains KHCO3 and K2CO3 in a wt. ratio of 0-8, the free oxygen is injected into the reaction media at a partial pressure of 0.3-30 bar and the temp. of the reaction media is maintained at 80-160 degrees C. Leaching times are is not >48 hrs. (esp. 0.5-6 hrs.) and iranium yields are about 98% (cf. leaching processes employing Na2CO3 (NaHCO3).
FR7823206A 1978-08-01 1978-08-01 Oxidative pressure leaching of uranium minerals - using potassium carbonate-bi:carbonate liquor to improve uranium yield Granted FR2432554A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7823206A FR2432554A1 (en) 1978-08-01 1978-08-01 Oxidative pressure leaching of uranium minerals - using potassium carbonate-bi:carbonate liquor to improve uranium yield

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7823206A FR2432554A1 (en) 1978-08-01 1978-08-01 Oxidative pressure leaching of uranium minerals - using potassium carbonate-bi:carbonate liquor to improve uranium yield

Publications (2)

Publication Number Publication Date
FR2432554A1 true FR2432554A1 (en) 1980-02-29
FR2432554B1 FR2432554B1 (en) 1980-12-12

Family

ID=9211640

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7823206A Granted FR2432554A1 (en) 1978-08-01 1978-08-01 Oxidative pressure leaching of uranium minerals - using potassium carbonate-bi:carbonate liquor to improve uranium yield

Country Status (1)

Country Link
FR (1) FR2432554A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2545105A1 (en) * 1983-04-27 1984-11-02 Pechiney Uranium High-temperature pretreatment of uraniferous, vanadiferous or molybdeniferous ores containing clayey gangue by means of an alkaline aqueous solution
WO1984004333A1 (en) * 1983-04-27 1984-11-08 Pechiney Uranium High temperature pre-treatment by means of an aqueous alcolyne solution of clayish gangue ore containing at least one valuable element
WO1995023240A1 (en) * 1994-02-25 1995-08-31 Boc Gases Australia Limited A process for extraction of uranium

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1069426A (en) * 1952-01-11 1954-07-07 Ca Nat Research Council Leaching of uranium ores
GB730230A (en) * 1951-12-13 1955-05-18 Mini Of Mines And Technjcal Su Alkaline leaching process for uranium extraction
US2992887A (en) * 1952-09-25 1961-07-18 Thunaes Arvid Leaching of uranium ores using alkaline carbonates and bicarbonates at atmospheric pressure

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB730230A (en) * 1951-12-13 1955-05-18 Mini Of Mines And Technjcal Su Alkaline leaching process for uranium extraction
FR1069426A (en) * 1952-01-11 1954-07-07 Ca Nat Research Council Leaching of uranium ores
US2992887A (en) * 1952-09-25 1961-07-18 Thunaes Arvid Leaching of uranium ores using alkaline carbonates and bicarbonates at atmospheric pressure

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2545105A1 (en) * 1983-04-27 1984-11-02 Pechiney Uranium High-temperature pretreatment of uraniferous, vanadiferous or molybdeniferous ores containing clayey gangue by means of an alkaline aqueous solution
WO1984004333A1 (en) * 1983-04-27 1984-11-08 Pechiney Uranium High temperature pre-treatment by means of an aqueous alcolyne solution of clayish gangue ore containing at least one valuable element
US4613361A (en) * 1983-04-27 1986-09-23 Uranium Pechiney High-temperature pretreatment by means of an alkaline aqueous solution of ores having an argillaceous gangue containing at least one usable element
WO1995023240A1 (en) * 1994-02-25 1995-08-31 Boc Gases Australia Limited A process for extraction of uranium
FR2716683A1 (en) * 1994-02-25 1995-09-01 Boc Gases Australia Ltd Uranium extraction process.

Also Published As

Publication number Publication date
FR2432554B1 (en) 1980-12-12

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse