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WO2004050955A3 - Separation of metals - Google Patents

Separation of metals Download PDF

Info

Publication number
WO2004050955A3
WO2004050955A3 PCT/GB2003/005238 GB0305238W WO2004050955A3 WO 2004050955 A3 WO2004050955 A3 WO 2004050955A3 GB 0305238 W GB0305238 W GB 0305238W WO 2004050955 A3 WO2004050955 A3 WO 2004050955A3
Authority
WO
WIPO (PCT)
Prior art keywords
metal
oxides
metals
metal oxides
hafnium
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.)
Ceased
Application number
PCT/GB2003/005238
Other languages
French (fr)
Other versions
WO2004050955A2 (en
Inventor
Robert Glyn Lewin
Robert Charles Thied
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.)
Sellafield Ltd
Original Assignee
British Nuclear Fuels PLC
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 British Nuclear Fuels PLC filed Critical British Nuclear Fuels PLC
Priority to JP2004556519A priority Critical patent/JP2006509104A/en
Priority to US10/537,744 priority patent/US20060137992A1/en
Priority to AU2003285572A priority patent/AU2003285572A1/en
Priority to DE60304738T priority patent/DE60304738D1/en
Priority to EP03778571A priority patent/EP1570114B1/en
Publication of WO2004050955A2 publication Critical patent/WO2004050955A2/en
Publication of WO2004050955A3 publication Critical patent/WO2004050955A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
    • C25C3/34—Electrolytic production, recovery or refining of metals by electrolysis of melts of metals not provided for in groups C25C3/02 - C25C3/32
    • 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
    • C22B34/00—Obtaining refractory metals
    • C22B34/10—Obtaining titanium, zirconium or hafnium
    • C22B34/14—Obtaining zirconium or hafnium
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
    • C25C3/26—Electrolytic production, recovery or refining of metals by electrolysis of melts of titanium, zirconium, hafnium, tantalum or vanadium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

The invention provides a process for the separation of metals, the metals being comprised as the metal oxides in a mixed oxide sample, the process comprising: (i) adding the mixed oxide to a molten salt electrolyte and cathodically electrolysing the oxide, the potential of the cathode being controlled so as to favour oxygen ionisation over deposition of metal from the cations present in the molten salt, and the applied potential difference being such as to facilitate selective reduction of one metal oxide at the expense of other metal oxides; and (ii) separating the metal from the remaining metal oxides, wherein the metal oxides comprise oxides of metals from at least one of the transition metal, lanthanide or actinide series The process is applicable to mixed oxide samples comprising mixtures of two or more metal oxides, and a particular application is in the separation of zirconium and hafnium comprised in mixed zirconium and hafnium oxides, the removal of hafnium facilitating the use of the zirconium in fuel cladding for use in the nuclear power industry.
PCT/GB2003/005238 2002-12-05 2003-12-02 Separation of metals Ceased WO2004050955A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2004556519A JP2006509104A (en) 2002-12-05 2003-12-02 Metal separation
US10/537,744 US20060137992A1 (en) 2002-12-05 2003-12-02 Separation of metals
AU2003285572A AU2003285572A1 (en) 2002-12-05 2003-12-02 Separation of metals
DE60304738T DE60304738D1 (en) 2002-12-05 2003-12-02 SEPARATION OF METALS
EP03778571A EP1570114B1 (en) 2002-12-05 2003-12-02 Separation of metals

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0228322.4 2002-12-05
GB0228322A GB2395958A (en) 2002-12-05 2002-12-05 Electrolytic separation of metals

Publications (2)

Publication Number Publication Date
WO2004050955A2 WO2004050955A2 (en) 2004-06-17
WO2004050955A3 true WO2004050955A3 (en) 2005-01-13

Family

ID=9949081

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2003/005238 Ceased WO2004050955A2 (en) 2002-12-05 2003-12-02 Separation of metals

Country Status (8)

Country Link
US (1) US20060137992A1 (en)
EP (1) EP1570114B1 (en)
JP (1) JP2006509104A (en)
AT (1) ATE323788T1 (en)
AU (1) AU2003285572A1 (en)
DE (1) DE60304738D1 (en)
GB (1) GB2395958A (en)
WO (1) WO2004050955A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0113749D0 (en) * 2001-06-06 2001-07-25 British Nuclear Fuels Plc Actinide production
GB0601697D0 (en) * 2006-01-27 2006-03-08 Pryde Neil Ltd Garment affording protection against knocks or blows
JP2010013668A (en) * 2008-06-30 2010-01-21 Toshiba Corp Method for producing metallic zirconium
US20100219344A1 (en) * 2009-02-27 2010-09-02 Battelle Memorial Institute Electrochemically Modulated Separations for In-line and At-line Monitoring of Actinides in High-Volume Process Streams
JP5534700B2 (en) * 2009-04-06 2014-07-02 株式会社東芝 Electrolytic production apparatus and production method for metal
CN108277507A (en) * 2018-02-06 2018-07-13 北京科技大学 A kind of method of vanadium and chromium in electrolytic separation containing vanadium and chromium fused salt

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4762694A (en) * 1987-05-01 1988-08-09 The United States Of America As Represented By The United States Department Of Energy Molten salt extraction process for the recovery of valued transition metals from land-based and deep-sea minerals
US4923577A (en) * 1988-09-12 1990-05-08 Westinghouse Electric Corp. Electrochemical-metallothermic reduction of zirconium in molten salt solutions
WO1999064638A1 (en) * 1998-06-05 1999-12-16 Cambridge University Technical Services Limited Removal of oxygen from metal oxides and solid solutions by electrolysis in a fused salt
WO2001041152A2 (en) * 1999-12-03 2001-06-07 British Nuclear Fuels Plc Actinide production
WO2002066712A1 (en) * 2001-02-21 2002-08-29 British Nuclear Fuels Plc Electrorefining process for separating metals

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3011865A (en) * 1960-08-22 1961-12-05 Glen E Benedict Separation of uranium and plutonium oxides
US4995948A (en) * 1989-07-24 1991-02-26 The United States Of America As Represented By The United States Department Of Energy Apparatus and process for the electrolytic reduction of uranium and plutonium oxides
KR970007520B1 (en) * 1993-04-05 1997-05-09 산도쿠긴조쿠 고교 가부시키가이샤 Method for collecting valuable metal from nickel hydrogen secondary cell
US5454914A (en) * 1993-12-23 1995-10-03 The United States Of America As Represented By The United States Department Of Energy Method of removal of heavy metal from molten salt in IFR fuel pyroprocessing
GB2359564B (en) * 2000-02-22 2004-09-29 Secr Defence Improvements in the electrolytic reduction of metal oxides
GB0113749D0 (en) * 2001-06-06 2001-07-25 British Nuclear Fuels Plc Actinide production

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4762694A (en) * 1987-05-01 1988-08-09 The United States Of America As Represented By The United States Department Of Energy Molten salt extraction process for the recovery of valued transition metals from land-based and deep-sea minerals
US4923577A (en) * 1988-09-12 1990-05-08 Westinghouse Electric Corp. Electrochemical-metallothermic reduction of zirconium in molten salt solutions
WO1999064638A1 (en) * 1998-06-05 1999-12-16 Cambridge University Technical Services Limited Removal of oxygen from metal oxides and solid solutions by electrolysis in a fused salt
WO2001041152A2 (en) * 1999-12-03 2001-06-07 British Nuclear Fuels Plc Actinide production
WO2002066712A1 (en) * 2001-02-21 2002-08-29 British Nuclear Fuels Plc Electrorefining process for separating metals

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
GOURISHANKAR KARTHICK ET AL: "Electrochemical reduction of metal oxides in molten salts", 2002, LIGHT MET (WARRENDALE PA); LIGHT METALS: PROCEEDINGS OF SESSIONS, TMS ANNUAL MEETING (WARRENDALE, PENNSYLVANIA) 2002, PAGE(S) 1075 - 1082, XP009038370 *

Also Published As

Publication number Publication date
EP1570114A2 (en) 2005-09-07
DE60304738D1 (en) 2006-05-24
EP1570114B1 (en) 2006-04-19
AU2003285572A8 (en) 2004-06-23
AU2003285572A1 (en) 2004-06-23
GB0228322D0 (en) 2003-01-08
WO2004050955A2 (en) 2004-06-17
GB2395958A (en) 2004-06-09
JP2006509104A (en) 2006-03-16
US20060137992A1 (en) 2006-06-29
ATE323788T1 (en) 2006-05-15

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