WO2007106709A3 - Method for electrolytic production and refining of metals - Google Patents

Method for electrolytic production and refining of metals Download PDF

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Publication number
WO2007106709A3
WO2007106709A3 PCT/US2007/063555 US2007063555W WO2007106709A3 WO 2007106709 A3 WO2007106709 A3 WO 2007106709A3 US 2007063555 W US2007063555 W US 2007063555W WO 2007106709 A3 WO2007106709 A3 WO 2007106709A3
Authority
WO
WIPO (PCT)
Prior art keywords
metal
refined
molten
alloy
layer
Prior art date
Application number
PCT/US2007/063555
Other languages
French (fr)
Other versions
WO2007106709A2 (en
WO2007106709A9 (en
Inventor
Sadoway Donald
Kai Johansen
Bjorn Myhre
Marianne Engvoll
Krister Engvoll
Original Assignee
Elkem As
Sadoway Donald
Kai Johansen
Bjorn Myhre
Marianne Engvoll
Krister Engvoll
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 Elkem As, Sadoway Donald, Kai Johansen, Bjorn Myhre, Marianne Engvoll, Krister Engvoll filed Critical Elkem As
Priority to JP2008558531A priority Critical patent/JP5183498B2/en
Priority to CA2645161A priority patent/CA2645161C/en
Priority to ES07758136.1T priority patent/ES2633113T3/en
Priority to CN2007800084700A priority patent/CN101400811B/en
Priority to EP07758136.1A priority patent/EP1999286B1/en
Priority to BRPI0708603A priority patent/BRPI0708603B1/en
Priority to AU2007226754A priority patent/AU2007226754B2/en
Publication of WO2007106709A2 publication Critical patent/WO2007106709A2/en
Publication of WO2007106709A3 publication Critical patent/WO2007106709A3/en
Publication of WO2007106709A9 publication Critical patent/WO2007106709A9/en
Priority to NO20083970A priority patent/NO344829B1/en

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
    • 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
    • C25C3/28—Electrolytic production, recovery or refining of metals by electrolysis of melts of titanium, zirconium, hafnium, tantalum or vanadium of titanium
    • 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
    • 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
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
    • C25C7/005—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells of cells for the electrolysis of melts

Landscapes

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

Abstract

The present invention relates to a method for electrolytic production and refining of metals having a melting point above about 1000 0C, particularly silicon, where there is provided a first electrolytic cell having an upper molten electrolyte layer of a first electrolyte, a lower molten alloy layer of an alloy of the metal to be refined and at least one metal more noble than the metal to be refined. The lower alloy layer is the cathode in the first cell and an anode is positioned in the upper molten electrolyte layer. A second electrolytic cell is also provided with an upper molten metal layer of the same metal as the metal to be refined, said layer constituting a cathode, a lower molten alloy layer, said lower layer constituting an anode, said alloy having a higher density than the metal to be refined, and an intermediate molten electrolyte layer having a density between the density of the upper and lower molten layers. Both electrolytes are oxide based electrolytes containing oxide of the metal to be refined, and the electrolyte is in molten state and has a melting point below the operating temperature of the process. Raw material comprising an oxide of the metal to be refined is added to the first cell and direct electric current is passed through the anode to the cathode such that the metal to be refined is moved from the anode and deposited in molten state at the cathode. The two cells can be operated in two separate steps. One to produce an alloy and the other to refine metal from the alloy.
PCT/US2007/063555 2006-03-10 2007-03-08 Method for electrolytic production and refining of metals WO2007106709A2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP2008558531A JP5183498B2 (en) 2006-03-10 2007-03-08 Electrolytic production of silicon and scouring method
CA2645161A CA2645161C (en) 2006-03-10 2007-03-08 Method for electrolytic production and refining of metals
ES07758136.1T ES2633113T3 (en) 2006-03-10 2007-03-08 Method for the production and refining of silicon electrolyte
CN2007800084700A CN101400811B (en) 2006-03-10 2007-03-08 Method for electrolytic production and refining of metals
EP07758136.1A EP1999286B1 (en) 2006-03-10 2007-03-08 Method for electrolytic production and refining of silicon
BRPI0708603A BRPI0708603B1 (en) 2006-03-10 2007-03-08 method to produce and refine a metal in an electrolyte method
AU2007226754A AU2007226754B2 (en) 2006-03-10 2007-03-08 Method for electrolytic production and refining of metals
NO20083970A NO344829B1 (en) 2006-03-10 2008-09-17 Process for electrolytic production and refining of silicon

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US37287506A 2006-03-10 2006-03-10
US11/372,875 2006-03-10
US80740006P 2006-07-14 2006-07-14
US60/807,400 2006-07-14

Publications (3)

Publication Number Publication Date
WO2007106709A2 WO2007106709A2 (en) 2007-09-20
WO2007106709A3 true WO2007106709A3 (en) 2007-11-29
WO2007106709A9 WO2007106709A9 (en) 2008-01-03

Family

ID=38510169

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/063555 WO2007106709A2 (en) 2006-03-10 2007-03-08 Method for electrolytic production and refining of metals

Country Status (8)

Country Link
EP (1) EP1999286B1 (en)
JP (1) JP5183498B2 (en)
AU (1) AU2007226754B2 (en)
BR (1) BRPI0708603B1 (en)
CA (1) CA2645161C (en)
ES (1) ES2633113T3 (en)
NO (1) NO344829B1 (en)
WO (1) WO2007106709A2 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8460535B2 (en) * 2009-04-30 2013-06-11 Infinium, Inc. Primary production of elements
DE112010004425T5 (en) * 2009-05-26 2012-11-29 Sumitomo Chemical Co., Ltd. Process for the preparation of purified metal or semi-metal
TW201247937A (en) * 2011-05-30 2012-12-01 Univ Kyoto Process for producing silicon
WO2013028126A1 (en) * 2011-08-19 2013-02-28 Jernkontoret A process for recovering metals and an electrolytic apparatus for performing the process
KR101793471B1 (en) * 2016-07-20 2017-11-06 충남대학교산학협력단 Refining Method of Metal Using Electroreduction and Electrorefining process
US11591704B2 (en) * 2017-08-01 2023-02-28 Boston Electrometallurgical Corporation Electrolytic production of reactive metals
JP7373361B2 (en) * 2019-11-07 2023-11-02 三菱重工業株式会社 Electrolytic smelting furnace and electrolytic smelting method
KR102498338B1 (en) * 2020-03-17 2023-02-10 서울대학교산학협력단 Electrolysis device and method for production of hydrogen peroxide
KR102380607B1 (en) * 2020-07-06 2022-03-31 한국원자력연구원 Device for disposal of silicone wastes and disposal method using the same
CN115012003B (en) * 2022-06-20 2024-02-06 中南大学 Method and device for continuously producing antimony sulfide ore through molten salt electrolysis

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3036961A (en) * 1958-02-24 1962-05-29 Herasymenko Anna Electrolytic refinement of metals
US3203883A (en) * 1961-07-01 1965-08-31 Rcsearch Inst For Iron Steel A Method of refining molten metals by electrolyzing molten slag under arc discharge
US3219561A (en) * 1962-03-14 1965-11-23 Gen Trustee Company Inc Dual cell refining of silicon and germanium
US4481232A (en) * 1983-05-27 1984-11-06 The United States Of America As Represented By The Department Of Energy Method and apparatus for producing high purity silicon
US4552637A (en) * 1983-03-11 1985-11-12 Swiss Aluminium Ltd. Cell for the refining of aluminium
US6299742B1 (en) * 1997-01-06 2001-10-09 Trustees Of Boston University Apparatus for metal extraction

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1534318A (en) * 1922-12-21 1925-04-21 Aluminum Co Of America Electrolytic refining of aluminum
GB833767A (en) * 1956-10-19 1960-04-27 Timax Corp Continuous electrolytic production of titanium
US3219516A (en) * 1962-07-30 1965-11-23 Staley Mfg Co A E Bonded multi-layer structures
US4292145A (en) * 1980-05-14 1981-09-29 The Board Of Trustees Of Leland Stanford Junior University Electrodeposition of molten silicon
NO156172C (en) * 1984-02-13 1987-08-12 Ila Lilleby Smelteverker PROCEDURE FOR THE PREPARATION OF PURIFIED SILICONE BY ELECTROLYTIC REFINING.
US5071523A (en) * 1989-10-13 1991-12-10 Aluminum Company Of America Two stage lithium transport process
US5593566A (en) * 1995-06-09 1997-01-14 General Motors Corporation Electrolytic production process for magnesium and its alloys
NO317073B1 (en) * 2001-06-05 2004-08-02 Sintef Electrolyte and process for the manufacture or refining of silicon
AU2002349216B2 (en) * 2001-11-22 2006-04-27 Qit-Fer Et Titane Inc. A method for electrowinning of titanium metal or alloy from titanium oxide containing compound in the liquid state

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3036961A (en) * 1958-02-24 1962-05-29 Herasymenko Anna Electrolytic refinement of metals
US3203883A (en) * 1961-07-01 1965-08-31 Rcsearch Inst For Iron Steel A Method of refining molten metals by electrolyzing molten slag under arc discharge
US3219561A (en) * 1962-03-14 1965-11-23 Gen Trustee Company Inc Dual cell refining of silicon and germanium
US4552637A (en) * 1983-03-11 1985-11-12 Swiss Aluminium Ltd. Cell for the refining of aluminium
US4481232A (en) * 1983-05-27 1984-11-06 The United States Of America As Represented By The Department Of Energy Method and apparatus for producing high purity silicon
US6299742B1 (en) * 1997-01-06 2001-10-09 Trustees Of Boston University Apparatus for metal extraction

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1999286A4 *

Also Published As

Publication number Publication date
NO20083970L (en) 2008-09-17
EP1999286A4 (en) 2011-09-07
AU2007226754B2 (en) 2011-01-20
NO344829B1 (en) 2020-05-18
CA2645161A1 (en) 2007-09-20
JP5183498B2 (en) 2013-04-17
WO2007106709A2 (en) 2007-09-20
EP1999286B1 (en) 2017-04-19
BRPI0708603B1 (en) 2016-05-17
AU2007226754A1 (en) 2007-09-20
CA2645161C (en) 2011-11-22
WO2007106709A9 (en) 2008-01-03
ES2633113T3 (en) 2017-09-19
BRPI0708603A2 (en) 2011-06-07
EP1999286A2 (en) 2008-12-10
JP2009529607A (en) 2009-08-20

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