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WO2006037999A3 - Electro-reduction process - Google Patents

Electro-reduction process Download PDF

Info

Publication number
WO2006037999A3
WO2006037999A3 PCT/GB2005/003821 GB2005003821W WO2006037999A3 WO 2006037999 A3 WO2006037999 A3 WO 2006037999A3 GB 2005003821 W GB2005003821 W GB 2005003821W WO 2006037999 A3 WO2006037999 A3 WO 2006037999A3
Authority
WO
WIPO (PCT)
Prior art keywords
electrode
oxide
electrolysis
counter
metalloid
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/GB2005/003821
Other languages
French (fr)
Other versions
WO2006037999A2 (en
Inventor
Close Malcom Charles Ward
Daniel Robert Johnson
Alastair Bryan Godfrey
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.)
Metalysis Ltd
Original Assignee
Metalysis Ltd
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 Metalysis Ltd filed Critical Metalysis Ltd
Publication of WO2006037999A2 publication Critical patent/WO2006037999A2/en
Publication of WO2006037999A3 publication Critical patent/WO2006037999A3/en
Anticipated expiration legal-status Critical
Ceased 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
    • C22B41/00—Obtaining germanium
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/02—Silicon
    • C01B33/021—Preparation
    • C01B33/023—Preparation by reduction of silica or free silica-containing material
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/33—Silicon
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B15/00—Operating or servicing cells
    • C25B15/08—Supplying or removing reactants or electrolytes; Regeneration of electrolytes
    • 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
    • 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
    • C22B21/00—Obtaining aluminium
    • C22B21/0038—Obtaining aluminium by other processes
    • 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
    • C22B21/00—Obtaining aluminium
    • C22B21/02—Obtaining aluminium with reducing
    • 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
    • C22B34/20—Obtaining niobium, tantalum or vanadium
    • C22B34/22—Obtaining vanadium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Electrolytic Production Of Metals (AREA)

Abstract

A method for producing a metal, metalloid or alloy from a metal oxide, metalloid oxide or mixture of oxides of alloying elements forming a working electrode, by electrolysis in a fused salt or mixture of salts in the presence of a counter-electrode, the method comprising applying to the working electrode a plurality of electrolysis cycles, wherein at least one part of the electrolysis cycle is conducted at a cathodic potential relative to the counter-electrode under conditions so as to remove oxygen from the metal, metalloid or mixed oxide; and wherein at least one other part of the electrolysis cycle is conducted at an anodic voltage relative to the counter-electrode such that ionisation of metallic impurities from the oxide rather than removal of oxygen occurs and said impurities are released into the electrolyte.
PCT/GB2005/003821 2004-10-06 2005-10-05 Electro-reduction process Ceased WO2006037999A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0422129.7 2004-10-06
GBGB0422129.7A GB0422129D0 (en) 2004-10-06 2004-10-06 Electro-reduction process

Publications (2)

Publication Number Publication Date
WO2006037999A2 WO2006037999A2 (en) 2006-04-13
WO2006037999A3 true WO2006037999A3 (en) 2007-02-22

Family

ID=33428125

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2005/003821 Ceased WO2006037999A2 (en) 2004-10-06 2005-10-05 Electro-reduction process

Country Status (2)

Country Link
GB (1) GB0422129D0 (en)
WO (1) WO2006037999A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9631287B2 (en) 2008-12-18 2017-04-25 Silicon Fire Ag Method and facility system for providing an energy carrier by application of carbon dioxide as a carbon supplier of electric energy

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101736354B (en) * 2008-11-06 2011-11-16 北京有色金属研究总院 Method for preparing one or more of silicon nano power, silicon nanowires and silicon nanotubes by electrochemical method
US20110253544A1 (en) * 2008-12-08 2011-10-20 University Of South Australia Formation Of Nanoporous Materials
EP2367752A1 (en) * 2008-12-18 2011-09-28 Silicon Fire AG Silicon or elemental metals as energy carriers
CA2747083A1 (en) * 2008-12-18 2010-06-24 Silicon Fire Ag Method for providing an energy carrier
US8460535B2 (en) * 2009-04-30 2013-06-11 Infinium, Inc. Primary production of elements
NL2015759B1 (en) 2015-11-10 2017-05-26 Stichting Energieonderzoek Centrum Nederland Additive manufacturing of metal objects.
NL2018890B1 (en) 2017-05-10 2018-11-15 Admatec Europe B V Additive manufacturing of metal objects
NL2021611B1 (en) 2018-09-12 2020-05-06 Admatec Europe B V Three-dimensional object and manufacturing method thereof
DE102019107393A1 (en) * 2019-03-22 2020-09-24 Deutsches Zentrum für Luft- und Raumfahrt e.V. Process engineering for halogen salts with two identical electrodes

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
WO2003048399A2 (en) * 2001-12-01 2003-06-12 Cambridge University Technical Services Limited Electrochemical processing of solid materials in fused salt
WO2005019501A2 (en) * 2003-08-20 2005-03-03 Materials & Electrochemical Research Corp. Thermal and electrochemical process for metal production

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
WO2003048399A2 (en) * 2001-12-01 2003-06-12 Cambridge University Technical Services Limited Electrochemical processing of solid materials in fused salt
WO2005019501A2 (en) * 2003-08-20 2005-03-03 Materials & Electrochemical Research Corp. Thermal and electrochemical process for metal production

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
X. JIN, P. GAO, D. WANG, X. HU, G. Z. CHEN: "Electrochemical Preparation of Silicon and Its Alloys from Solid Oxides in Molten Caclium Chloride", ANGEW. CHEM. INT. ED., vol. 43, no. 6, 27 January 2004 (2004-01-27), pages 733 - 736, XP002405077, Retrieved from the Internet <URL:http://www3.interscience.wiley.com/cgi-bin/fulltext/107561039/main.html,ftx_abs> [retrieved on 20061027] *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9631287B2 (en) 2008-12-18 2017-04-25 Silicon Fire Ag Method and facility system for providing an energy carrier by application of carbon dioxide as a carbon supplier of electric energy

Also Published As

Publication number Publication date
GB0422129D0 (en) 2004-11-03
WO2006037999A2 (en) 2006-04-13

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