FR2404601A1 - Purification of aq. solns. from extn. of metals - esp. vanadium, molybdenum and uranium, comprises treatment with lime - Google Patents

Purification of aq. solns. from extn. of metals - esp. vanadium, molybdenum and uranium, comprises treatment with lime

Info

Publication number
FR2404601A1
FR2404601A1 FR7730176A FR7730176A FR2404601A1 FR 2404601 A1 FR2404601 A1 FR 2404601A1 FR 7730176 A FR7730176 A FR 7730176A FR 7730176 A FR7730176 A FR 7730176A FR 2404601 A1 FR2404601 A1 FR 2404601A1
Authority
FR
France
Prior art keywords
ppte
hydroxide
liquor
amt
solns
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
FR7730176A
Other languages
French (fr)
Other versions
FR2404601B1 (en
Inventor
Pierre Maurel
Bernard Bosca
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.)
Rio Tinto France SAS
Original Assignee
Aluminium Pechiney 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 Aluminium Pechiney SA filed Critical Aluminium Pechiney SA
Priority to FR7730176A priority Critical patent/FR2404601A1/en
Priority to EP78420007A priority patent/EP0001537B1/en
Priority to DE7878420007T priority patent/DE2862174D1/en
Priority to IT28043/78A priority patent/IT1099159B/en
Priority to FI782915A priority patent/FI64339C/en
Priority to IL55642A priority patent/IL55642A/en
Priority to CA312,158A priority patent/CA1110828A/en
Priority to AU40244/78A priority patent/AU523033B2/en
Priority to BR7806431A priority patent/BR7806431A/en
Priority to ZA00785511A priority patent/ZA785511B/en
Priority to OA56620A priority patent/OA08232A/en
Priority to BE190804A priority patent/BE870886A/en
Priority to MX10134778U priority patent/MX6235E/en
Publication of FR2404601A1 publication Critical patent/FR2404601A1/en
Priority to FR8007878A priority patent/FR2479792A2/en
Priority to FR8007877A priority patent/FR2479793A2/en
Publication of FR2404601B1 publication Critical patent/FR2404601B1/fr
Application granted granted Critical
Priority to AU69052/81A priority patent/AU545141B2/en
Priority to AU69051/81A priority patent/AU545530B2/en
Priority to FR8107857A priority patent/FR2504111A2/en
Priority to FR8115064A priority patent/FR2510540A2/en
Priority to FR8115244A priority patent/FR2510541A2/en
Priority to US06/324,060 priority patent/US4451439A/en
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/46—Purification of aluminium oxide, aluminium hydroxide or aluminates
    • C01F7/47—Purification of aluminium oxide, aluminium hydroxide or aluminates of aluminates, e.g. removal of compounds of Si, Fe, Ga or of organic compounds from Bayer process liquors
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D1/00—Oxides or hydroxides of sodium, potassium or alkali metals in general
    • C01D1/04—Hydroxides
    • C01D1/28—Purification; Separation
    • C01D1/32—Purification; Separation by absorption or precipitation
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/46—Purification of aluminium oxide, aluminium hydroxide or aluminates
    • C01F7/47—Purification of aluminium oxide, aluminium hydroxide or aluminates of aluminates, e.g. removal of compounds of Si, Fe, Ga or of organic compounds from Bayer process liquors
    • C01F7/473—Removal of organic compounds, e.g. sodium oxalate

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

Aq. solns. contg. carbonates, sulphates, hydroxide or bicarbonates of Na or K and at least one of V, U and Mo, together with mineral and organic impurities, are purified by treatment at >= b. pt. with lime in amt. (0.1-20) times the stoichiometri amt. for transforming the carbonates present into hydroxides, without taking account of the amt of time required to ppte. insol. metallic cpds. of Ca. The first ppte, is sepd. and washed. This contains CaCO3 and a mixt. of other organic and inorganic Ca salts. The remaining liquor is enriched in hydroxide. The mixt. of this liquor and the wash liquor from the first ppte. is concentrated by evapn. to >=50% hydroxide, to provoke formation of a second ppte. of Na2SO4 or K2SO4. The crystals are sepd. from the liquor which remains rich in hydroxide. In extraction of U, V and/or Mo from their ores. The aq. solutions remaining are purified of pollutants, so that they can be safely discarded, in compliance with stringent new regulations.
FR7730176A 1977-09-30 1977-09-30 Purification of aq. solns. from extn. of metals - esp. vanadium, molybdenum and uranium, comprises treatment with lime Granted FR2404601A1 (en)

Priority Applications (21)

Application Number Priority Date Filing Date Title
FR7730176A FR2404601A1 (en) 1977-09-30 1977-09-30 Purification of aq. solns. from extn. of metals - esp. vanadium, molybdenum and uranium, comprises treatment with lime
EP78420007A EP0001537B1 (en) 1977-09-30 1978-09-04 Process for the treatment of solutions containing carbonate, sulfate, possibly hydroxide of sodium or potassium and at least one of the metals vanadium, uranium, molybdenum
DE7878420007T DE2862174D1 (en) 1977-09-30 1978-09-04 Process for the treatment of solutions containing carbonate, sulfate, possibly hydroxide of sodium or potassium and at least one of the metals vanadium, uranium, molybdenum
IT28043/78A IT1099159B (en) 1977-09-30 1978-09-25 PURIFICATION PROCEDURE FOR SOLUTIONS CONTAINING CARBONATE, SULPHATE, POSSIBLE HYDROXIDE OF SODIUM OR POTASSIUM, AS WELL AS ONE OF THE METALS VANADIUM, URANIUM, MOLYBDENUM
FI782915A FI64339C (en) 1977-09-30 1978-09-25 FOERFARANDE FOER RENING AV LOESNINGAR INNEHAOLLANDE CARBONATE SULFAT OCH EVENTUELY HYDROXID AV SODIUM ELLER POTASSIUM SAMT AOTMINSTONE IN AV METALLERNA VANADIN URAN ELLER MOLYBDEN
IL55642A IL55642A (en) 1977-09-30 1978-09-26 Purification of solutions containing sodium or potassium carbonate,sulphate and possibly hydroxide,and at least one of the metals vanadium,uranium and molybdenum
CA312,158A CA1110828A (en) 1977-09-30 1978-09-27 Process for the purification of solutions containing carbonates, sulphates, possibly potassium or sodium hydroxide, and at least one of the metals vanadium, uranium, molybdenum
AU40244/78A AU523033B2 (en) 1977-09-30 1978-09-27 Purification of solution containing a sodium or potassium carbonate, sulphate and possibly hydroxide
ZA00785511A ZA785511B (en) 1977-09-30 1978-09-28 Process for the purification of solutions containing a sodium or potassium carbonate,sulphate,and possibly hydroxide,and at least one of the metals vanadium,uranium,and molybdenum
BR7806431A BR7806431A (en) 1977-09-30 1978-09-28 PROCESS FOR PURIFICATION OF AQUEOUS SOLUTIONS CONTAINING CARBONATE, SULFATE, HYDROXIDE OR BICARBONATE OF ONE OF THE SODIUM OR POTASSIUM ALKALINE METALS, AS WELL AS AT LEAST ONE OF THE METALS OF THE GROUP CONTAINED BY VANADIO, URANIO AND MURANI
OA56620A OA08232A (en) 1977-09-30 1978-09-29 Process for the purification of solutions containing carbonate, sulphate, possibly sodium or potassium hydroxide, as well as at least one of the metals, vanadium, uranium, modybdenum
BE190804A BE870886A (en) 1977-09-30 1978-09-29 PROCESS FOR PURIFYING SOLUTIONS CONTAINING CARBONATE, SULPHATE, POSSIBLE SODIUM HYDROXIDE OR POTASSIUM AS WELL AS ONE AT LEAST OF METALS, VANADIUM URANIUM, MOLYBDENE
MX10134778U MX6235E (en) 1977-09-30 1978-09-29 IMPROVED METHOD FOR TREATING AQUEOUS SOLUTIONS CONTAINING CARBONATES, SULPHATES, HYDROXIDES, ACIDIC CARBONATES SODIUM OR POTASSIUM, AS WELL AS AT LEAST ONE OF THE METALS, VANADIUM, URANIUM AND URANIUM
FR8007878A FR2479792A2 (en) 1977-09-30 1980-04-02 Sulphate by-prod from alkali (bi)carbonate leach soln. purificn. - by pptn. as barium sulphate and calcining to regenerate barium precipitant(BR 6.10.81)
FR8007877A FR2479793A2 (en) 1977-09-30 1980-04-02 Molybdate by-prod from alkali (bi)carbonate leach soln. purificn. - by sulphiding and acidifying to ppte. molybdenum sulphide(BR 6.10.81)
AU69051/81A AU545530B2 (en) 1977-09-30 1981-04-02 Purifying alkali metal leach solutions containing vanadium, uranium or molybdenum
AU69052/81A AU545141B2 (en) 1977-09-30 1981-04-02 Purifying alkali metal leach solutions containing vanadium iuranium or molybdenum
FR8107857A FR2504111A2 (en) 1977-09-30 1981-04-15 Arsenic extraction from alkaline soln. - esp. uranium or vanadium leaching soln. prior to recycling
FR8115064A FR2510540A2 (en) 1977-09-30 1981-07-29 Arsenic removal from uranium and vanadium leaching solns. - by addn. of magnesium cpd. prior to soln. purification for recycling
FR8115244A FR2510541A2 (en) 1977-09-30 1981-07-31 Molybdenum recovery from uranium and vanadium leach solns. - by pptn. of molybdate, dispersing in acid medium and pptn. of molybdenum tri:oxide
US06/324,060 US4451439A (en) 1977-09-30 1981-11-23 Process for the purification of solutions containing a sodium or potassium carbonate, sulphate, and possibly hydroxide, and at least one of the metals vanadium, uranium and molybdenum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7730176A FR2404601A1 (en) 1977-09-30 1977-09-30 Purification of aq. solns. from extn. of metals - esp. vanadium, molybdenum and uranium, comprises treatment with lime

Publications (2)

Publication Number Publication Date
FR2404601A1 true FR2404601A1 (en) 1979-04-27
FR2404601B1 FR2404601B1 (en) 1980-04-04

Family

ID=9196208

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7730176A Granted FR2404601A1 (en) 1977-09-30 1977-09-30 Purification of aq. solns. from extn. of metals - esp. vanadium, molybdenum and uranium, comprises treatment with lime

Country Status (3)

Country Link
BE (1) BE870886A (en)
FR (1) FR2404601A1 (en)
ZA (1) ZA785511B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4432947A (en) * 1981-07-31 1984-02-21 Uranium Pechiney Ugine Kuhlmann Process for obtaining molybdenum as a useful product from molybdeniferous solutions containing alkali metal carbonate, sulphate, hydroxide or hydrogen carbonate and possibly uranium
US4485075A (en) * 1981-04-15 1984-11-27 Uranium Pechiney Ugine Kuhlmann Process for the extraction of arsenic from aqueous solutions containing alkali metal carbonate, sulfate and hydroxide or hydrogen carbonate and at least on metal including vanadium, uranium and molybdenum
US4495159A (en) * 1981-07-29 1985-01-22 Uranium Pechiney Ugine Kuhlmann Extraction of arsenic in solution in liquors containing alkali metal carbonate, sulphate and possibly hydroxide, and at least one of the metals vanadium, uranium and molybdenum

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4485075A (en) * 1981-04-15 1984-11-27 Uranium Pechiney Ugine Kuhlmann Process for the extraction of arsenic from aqueous solutions containing alkali metal carbonate, sulfate and hydroxide or hydrogen carbonate and at least on metal including vanadium, uranium and molybdenum
US4495159A (en) * 1981-07-29 1985-01-22 Uranium Pechiney Ugine Kuhlmann Extraction of arsenic in solution in liquors containing alkali metal carbonate, sulphate and possibly hydroxide, and at least one of the metals vanadium, uranium and molybdenum
US4432947A (en) * 1981-07-31 1984-02-21 Uranium Pechiney Ugine Kuhlmann Process for obtaining molybdenum as a useful product from molybdeniferous solutions containing alkali metal carbonate, sulphate, hydroxide or hydrogen carbonate and possibly uranium

Also Published As

Publication number Publication date
BE870886A (en) 1979-03-29
FR2404601B1 (en) 1980-04-04
ZA785511B (en) 1979-11-28

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ST Notification of lapse