GB977595A - Improved process for the separation of rare earth metal compounds - Google Patents

Improved process for the separation of rare earth metal compounds

Info

Publication number
GB977595A
GB977595A GB8145/61A GB814561A GB977595A GB 977595 A GB977595 A GB 977595A GB 8145/61 A GB8145/61 A GB 8145/61A GB 814561 A GB814561 A GB 814561A GB 977595 A GB977595 A GB 977595A
Authority
GB
United Kingdom
Prior art keywords
rare earth
earth metal
ions
separated
eluent
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.)
Expired
Application number
GB8145/61A
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 SA
Original Assignee
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 Pechiney SA filed Critical Pechiney SA
Publication of GB977595A publication Critical patent/GB977595A/en
Expired 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
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
    • C22B3/42—Treatment or purification of solutions, e.g. obtained by leaching by ion-exchange extraction
    • 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
    • C01F17/00—Compounds of rare earth metals
    • C01F17/10—Preparation or treatment, e.g. separation or purification
    • C01F17/13—Preparation or treatment, e.g. separation or purification by using ion exchange resins, e.g. chelate resins
    • 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
    • C01F17/00—Compounds of rare earth metals
    • C01F17/20—Compounds containing only rare earth metals as the metal element
    • C01F17/206—Compounds containing only rare earth metals as the metal element oxide or hydroxide being the only anion
    • C01F17/224—Oxides or hydroxides of lanthanides
    • 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
    • C01F17/00—Compounds of rare earth metals
    • C01F17/20—Compounds containing only rare earth metals as the metal element
    • C01F17/253—Halides
    • C01F17/271—Chlorides
    • 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

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

Abstract

"Rare earth metal" ions are separated by ion-exchange chromatography in which process an aqueous eluent capable of forming complex compounds with "rare earth metal ions" to be separated is contacted with a bed of cation exchange resin containing said ions, the eluent thereafter being contacted with a further bed of cation-exchange resin containing ions of at least one further "rare earth metal" capable of forming with the eluent a complex of greater stability than any of the complexes formed with the "rare earth metal" ions to be separated and thereafter recovering the "rare earth metal" ions to be separated. The preferred aqueous eluent contains ethylenediamine tetracetic acid or nitrolotiracetic acid, and the further "rare earth metal" ions are of higher atomic weight than the "rare earth metal" ions to be separated and especially consist of at least one "zttrium compound" i.e. a rare earth of atomic weight of at least 152 and includes zttrium itself in addition, although not a rare earth by the usual definition. The invention is described with reference to two examples using ammonium nitrolotriacetate and ammonium ethylene diamine tetraacetate as eluting agents.
GB8145/61A 1960-03-08 1961-03-06 Improved process for the separation of rare earth metal compounds Expired GB977595A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR820701A FR1258921A (en) 1960-03-08 1960-03-08 Rare earth metal separation process

Publications (1)

Publication Number Publication Date
GB977595A true GB977595A (en) 1964-12-09

Family

ID=8726624

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8145/61A Expired GB977595A (en) 1960-03-08 1961-03-06 Improved process for the separation of rare earth metal compounds

Country Status (4)

Country Link
FR (1) FR1258921A (en)
GB (1) GB977595A (en)
LU (1) LU39861A1 (en)
NL (1) NL262039A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2148735A (en) * 1983-09-30 1985-06-05 Asahi Chemical Ind A process for separating and purifying metallic elements in displacement chromatography

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4765909A (en) * 1987-04-23 1988-08-23 Gte Laboratories Incorporated Ion exchange method for separation of scandium and thorium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2148735A (en) * 1983-09-30 1985-06-05 Asahi Chemical Ind A process for separating and purifying metallic elements in displacement chromatography

Also Published As

Publication number Publication date
LU39861A1 (en)
NL262039A (en) 1900-01-01
FR1258921A (en) 1961-04-21

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