FR2376215A1 - Extn. of uranium in situ from its ores - by oxidn. and leaching with oxygen enriched water under carbon di:oxide pressure and alkaline earth (bi)carbonate soln. - Google Patents

Extn. of uranium in situ from its ores - by oxidn. and leaching with oxygen enriched water under carbon di:oxide pressure and alkaline earth (bi)carbonate soln.

Info

Publication number
FR2376215A1
FR2376215A1 FR7639807A FR7639807A FR2376215A1 FR 2376215 A1 FR2376215 A1 FR 2376215A1 FR 7639807 A FR7639807 A FR 7639807A FR 7639807 A FR7639807 A FR 7639807A FR 2376215 A1 FR2376215 A1 FR 2376215A1
Authority
FR
France
Prior art keywords
soln
leaching
situ
alkaline earth
pressure
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
FR7639807A
Other languages
French (fr)
Other versions
FR2376215B1 (en
Inventor
Antoine Floreancig
Robert Schuffenecker
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.)
Minatome Corp
Original Assignee
Minatome Corp
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 Minatome Corp filed Critical Minatome Corp
Priority to FR7639807A priority Critical patent/FR2376215A1/en
Priority to ZA00777280A priority patent/ZA777280B/en
Priority to CA293,658A priority patent/CA1113725A/en
Priority to DE19772757208 priority patent/DE2757208A1/en
Priority to OA56356A priority patent/OA05838A/en
Priority to PT67463A priority patent/PT67463B/en
Priority to AT0935477A priority patent/AT363257B/en
Priority to ES465535A priority patent/ES465535A1/en
Priority to AU32047/77A priority patent/AU520446B2/en
Priority to MX10088778U priority patent/MX5887E/en
Publication of FR2376215A1 publication Critical patent/FR2376215A1/en
Application granted granted Critical
Publication of FR2376215B1 publication Critical patent/FR2376215B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G43/00—Compounds of uranium
    • C01G43/006—Compounds containing, besides uranium, two or more other elements, with the exception of oxygen or hydrogen
    • 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
    • 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
    • C22B60/0265—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes treatment or purification of solutions or of liquors or of slurries extraction by solid resins
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity

Landscapes

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

Abstract

Uranium is extracted in situ from the ore deposit (or after ore mining and crushing) by a combination of oxidn. and leaching with O-enriched water under CO2 press. and alkaline earth carbonate or bicarbonate soln. The alkaline earth metals are either Ca or Mg. The CO2 pressure is reduced to 4 bar after the U has been oxidised and dissolved. This pressure is maintained and the CO2 released by the redn. in pressure is recovered for further use. The pressure is finally reduced to atmospheric press. and the soln. degassed by a vacuum treatment. The liq. is then treated with CaOH at pH 10-12 so that Ca uranate and CaCO3 ppte. are formed which are recovered. Process required adaption to the local conditions and there are therefore a number of variations and adjustments required, e.g. to restore the pH of the underground water alkaline earth hydroxide solns. are pumped into the bore holes. The Ca uranate may be treated with H2O2 in order to produce U peroxide which is recovered. The H2O2 treatment may also be used as a second leaching in situ operations. The U may also be recovered by ion exchange. In laboratory experiments a U recovery of up to 92% was obtd. The ore is oxidised in situ to produce a soluble phase, i.e. the method is much less expensive than a mining operation. The former (NH4)2CO3 process for the extn. left NH3 in the underground water and presented a serious pollution hazard. There is no pollution risk involved in the present process, and no ion exchange reaction takes place between Ca2+ and NH3+ ions as in prior art where Ca level of the leaching soln. was increased. When the soln. ascended from underground redn. of hydrostatic pressure caused released of CO2, so that the pH of the soln. increased thus precipitating CaCO3 which clogged the pipes.
FR7639807A 1976-12-28 1976-12-28 Extn. of uranium in situ from its ores - by oxidn. and leaching with oxygen enriched water under carbon di:oxide pressure and alkaline earth (bi)carbonate soln. Granted FR2376215A1 (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
FR7639807A FR2376215A1 (en) 1976-12-28 1976-12-28 Extn. of uranium in situ from its ores - by oxidn. and leaching with oxygen enriched water under carbon di:oxide pressure and alkaline earth (bi)carbonate soln.
ZA00777280A ZA777280B (en) 1976-12-28 1977-12-06 Process for extracting uranium from its ores by using alkaline earth carbonates and bicarbonates solunons in the presence of carbon dioxide
CA293,658A CA1113725A (en) 1976-12-28 1977-12-21 Process for extracting uranium from its ores by using alkaline earth carbonates and bicarbonates solutions in the presence of carbon dioxide
DE19772757208 DE2757208A1 (en) 1976-12-28 1977-12-22 Extn. of uranium in situ from its ores - by oxidn. and leaching with oxygen enriched water under carbon di:oxide pressure and alkaline earth (bi)carbonate soln.
OA56356A OA05838A (en) 1976-12-28 1977-12-24 Uranium extraction process.
PT67463A PT67463B (en) 1976-12-28 1977-12-27 Process for the extraction of uranium from its ores
AT0935477A AT363257B (en) 1976-12-28 1977-12-28 METHOD FOR OBTAINING URANE FROM ITS ORES
ES465535A ES465535A1 (en) 1976-12-28 1977-12-28 Extn. of uranium in situ from its ores - by oxidn. and leaching with oxygen enriched water under carbon di:oxide pressure and alkaline earth (bi)carbonate soln.
AU32047/77A AU520446B2 (en) 1976-12-28 1977-12-29 Extracting uranium from its ores
MX10088778U MX5887E (en) 1976-12-28 1978-01-02 IMPROVED METHOD FOR THE EXTRACTION OF URANIUM FROM MINERALS THAT CONTAIN IT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7639807A FR2376215A1 (en) 1976-12-28 1976-12-28 Extn. of uranium in situ from its ores - by oxidn. and leaching with oxygen enriched water under carbon di:oxide pressure and alkaline earth (bi)carbonate soln.

Publications (2)

Publication Number Publication Date
FR2376215A1 true FR2376215A1 (en) 1978-07-28
FR2376215B1 FR2376215B1 (en) 1981-10-23

Family

ID=9181849

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7639807A Granted FR2376215A1 (en) 1976-12-28 1976-12-28 Extn. of uranium in situ from its ores - by oxidn. and leaching with oxygen enriched water under carbon di:oxide pressure and alkaline earth (bi)carbonate soln.

Country Status (3)

Country Link
CA (1) CA1113725A (en)
FR (1) FR2376215A1 (en)
ZA (1) ZA777280B (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2460277A1 (en) * 1979-07-04 1981-01-23 Cogema Uranium concentrate recovery from alkaline leach liquor - by neutralising to remove carbonate and adding lime to ppte. uranium
RU2458164C1 (en) * 2011-05-31 2012-08-10 Открытое акционерное общество "Ведущий научно-исследовательский институт химической технологии" Method of ion-exchange uranium extraction from sulfuric solutions and pulps
US20130101470A1 (en) * 2010-06-16 2013-04-25 Commissariat A L'energie Atomique Et Aux Energies Alternatives Reaction Chamber for Exothermic Material
RU2489510C2 (en) * 2011-06-08 2013-08-10 Закрытое акционерное общество "Далур" Extraction method of natural uranium concentrate from sulphuric acid solutions of underground leaching, and plant for its implementation
RU2516025C2 (en) * 2011-07-29 2014-05-20 Ром Энд Хаас Компани Method of extracting uranium from mother liquors
RU2536312C1 (en) * 2013-11-19 2014-12-20 Федеральное государственное унитарное предприятие "Научно-исследовательский институт Научно-производственное объединение "ЛУЧ" (ФГУП "НИИ НПО "ЛУЧ") Method of extracting uranium from phosphate solutions
RU2579326C2 (en) * 2010-11-24 2016-04-10 Ром Энд Хаас Компани Method for extracting uranium from mother liquor
RU2618293C1 (en) * 2016-01-11 2017-05-03 Федеральное государственное автономное образовательное учреждение высшего образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина" Method for uranium extraction from diluted solutions and natural waters
RU2627078C1 (en) * 2016-11-08 2017-08-03 Акционерное общество "Ведущий научно-исследовательский институт химической технологии" Uranium sorptive extraction method from sulphuric acid solutions and pulps
RU2646297C1 (en) * 2016-08-30 2018-03-02 Федеральное государственное автономное образовательное учреждение высшего образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина" (УрФУ) Method for obtaining of sorbent for uranium extraction from underground water

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2460277A1 (en) * 1979-07-04 1981-01-23 Cogema Uranium concentrate recovery from alkaline leach liquor - by neutralising to remove carbonate and adding lime to ppte. uranium
US20130101470A1 (en) * 2010-06-16 2013-04-25 Commissariat A L'energie Atomique Et Aux Energies Alternatives Reaction Chamber for Exothermic Material
JP2013535008A (en) * 2010-06-16 2013-09-09 コミシリア ア レネルジ アトミック エ オ エナジーズ オルタネティヴズ Reaction chamber for exothermic materials
US9533816B2 (en) * 2010-06-16 2017-01-03 Commissariat A L'energie Atomique Et Aux Energies Alternatives Reaction chamber for exothermic material
RU2579326C2 (en) * 2010-11-24 2016-04-10 Ром Энд Хаас Компани Method for extracting uranium from mother liquor
RU2458164C1 (en) * 2011-05-31 2012-08-10 Открытое акционерное общество "Ведущий научно-исследовательский институт химической технологии" Method of ion-exchange uranium extraction from sulfuric solutions and pulps
RU2489510C2 (en) * 2011-06-08 2013-08-10 Закрытое акционерное общество "Далур" Extraction method of natural uranium concentrate from sulphuric acid solutions of underground leaching, and plant for its implementation
RU2516025C2 (en) * 2011-07-29 2014-05-20 Ром Энд Хаас Компани Method of extracting uranium from mother liquors
RU2536312C1 (en) * 2013-11-19 2014-12-20 Федеральное государственное унитарное предприятие "Научно-исследовательский институт Научно-производственное объединение "ЛУЧ" (ФГУП "НИИ НПО "ЛУЧ") Method of extracting uranium from phosphate solutions
RU2618293C1 (en) * 2016-01-11 2017-05-03 Федеральное государственное автономное образовательное учреждение высшего образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина" Method for uranium extraction from diluted solutions and natural waters
RU2646297C1 (en) * 2016-08-30 2018-03-02 Федеральное государственное автономное образовательное учреждение высшего образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина" (УрФУ) Method for obtaining of sorbent for uranium extraction from underground water
RU2627078C1 (en) * 2016-11-08 2017-08-03 Акционерное общество "Ведущий научно-исследовательский институт химической технологии" Uranium sorptive extraction method from sulphuric acid solutions and pulps

Also Published As

Publication number Publication date
ZA777280B (en) 1978-10-25
CA1113725A (en) 1981-12-08
FR2376215B1 (en) 1981-10-23

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse
AR Application made for restoration
DI Inadmissibility of an action of restoration