WO2007105125A3 - Aluminium electrowinning cell with enhanced crust - Google Patents

Aluminium electrowinning cell with enhanced crust Download PDF

Info

Publication number
WO2007105125A3
WO2007105125A3 PCT/IB2007/050611 IB2007050611W WO2007105125A3 WO 2007105125 A3 WO2007105125 A3 WO 2007105125A3 IB 2007050611 W IB2007050611 W IB 2007050611W WO 2007105125 A3 WO2007105125 A3 WO 2007105125A3
Authority
WO
WIPO (PCT)
Prior art keywords
crust
electrolyte
cavity
enhanced
electrowinning cell
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/IB2007/050611
Other languages
French (fr)
Other versions
WO2007105125A2 (en
Inventor
Thinh T Nguyen
Kaenel Rene Von
Nora Vittorio De
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.)
Moltech Invent SA
Original Assignee
Moltech Invent 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 Moltech Invent SA filed Critical Moltech Invent SA
Priority to CA002643390A priority Critical patent/CA2643390A1/en
Priority to EP07705954A priority patent/EP1996747A2/en
Priority to NZ570739A priority patent/NZ570739A/en
Priority to AU2007226245A priority patent/AU2007226245B2/en
Priority to US12/224,923 priority patent/US8097144B2/en
Publication of WO2007105125A2 publication Critical patent/WO2007105125A2/en
Publication of WO2007105125A3 publication Critical patent/WO2007105125A3/en
Anticipated expiration legal-status Critical
Priority to NO20084218A priority patent/NO20084218L/en
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
    • C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
    • C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
    • 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
    • C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
    • C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
    • C25C3/12—Anodes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Metals (AREA)

Abstract

A cell for the electrowinning of aluminium has a cavity for containing electrolyte (20) and one or more non emerging active anode bodies (5) that are suspended in the electrolyte. The electrolyte's surface (21,21') has an expanse extending over the cavity and is substantially covered by a self-formed crust (25) of frozen electrolyte. The crust is mechanically reinforced by at least one preformed refractory body (30, 30',30') . The electrolyte crust is formed against the preformed refractory body and bonded thereto so as to inhibit mechanical failure of the crust and collapse of the crust into the cavity.
PCT/IB2007/050611 2006-03-10 2007-02-26 Aluminium electrowinning cell with enhanced crust Ceased WO2007105125A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CA002643390A CA2643390A1 (en) 2006-03-10 2007-02-26 Aluminium electrowinning cell with enhanced crust
EP07705954A EP1996747A2 (en) 2006-03-10 2007-02-26 Aluminium electrowinning cell with enhanced crust
NZ570739A NZ570739A (en) 2006-03-10 2007-02-26 Aluminium electrowinning cell with enhanced crust
AU2007226245A AU2007226245B2 (en) 2006-03-10 2007-02-26 Aluminium electrowinning cell with enhanced crust
US12/224,923 US8097144B2 (en) 2006-03-10 2007-02-26 Aluminium electrowinning cell with enhanced crust
NO20084218A NO20084218L (en) 2006-03-10 2008-10-08 Aluminum electro recovery cell with improved salt crust

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IB2006000601 2006-03-10
IBPCT/IB2006/000601 2006-03-10

Publications (2)

Publication Number Publication Date
WO2007105125A2 WO2007105125A2 (en) 2007-09-20
WO2007105125A3 true WO2007105125A3 (en) 2008-05-08

Family

ID=38376733

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2007/050611 Ceased WO2007105125A2 (en) 2006-03-10 2007-02-26 Aluminium electrowinning cell with enhanced crust

Country Status (7)

Country Link
US (1) US8097144B2 (en)
EP (1) EP1996747A2 (en)
AU (1) AU2007226245B2 (en)
CA (1) CA2643390A1 (en)
NO (1) NO20084218L (en)
NZ (1) NZ570739A (en)
WO (1) WO2007105125A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101709485B (en) * 2009-12-18 2012-07-04 中国铝业股份有限公司 Aluminum electrolytic cell for producing virgin aluminum by inert anode
CN103630101B (en) * 2013-11-07 2016-07-06 中国铝业股份有限公司 A kind of method of on-line measurement anode electrolytic cell thickness

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1046705A (en) * 1964-05-27 1966-10-26 British Aluminium Co Ltd Improvements in or relating to the operation of electrolytic reduction cells for theproduction of aluminium
WO2004074549A2 (en) * 2003-02-20 2004-09-02 Moltech Invent S.A. Aluminium electrowinning cells with metal-based anodes

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4956068A (en) * 1987-09-02 1990-09-11 Moltech Invent S.A. Non-consumable anode for molten salt electrolysis
AU654309B2 (en) * 1990-11-28 1994-11-03 Moltech Invent S.A. Electrode assemblies and multimonopolar cells for aluminium electrowinning
US5279715A (en) * 1991-09-17 1994-01-18 Aluminum Company Of America Process and apparatus for low temperature electrolysis of oxides
DE69802092T2 (en) * 1997-07-08 2002-06-27 Moltech Invent S.A., Luxemburg/Luxembourg DESIGNING A CELL FOR ALUMINUM PRODUCTION
US6551489B2 (en) * 2000-01-13 2003-04-22 Alcoa Inc. Retrofit aluminum smelting cells using inert anodes and method
AU7697201A (en) * 2000-07-19 2002-01-30 Alcoa Inc Insulation assemblies for metal production cells
US20030209426A1 (en) * 2000-12-08 2003-11-13 Slaugenhaupt Michael L. Insulating lid for aluminum production cells
CA2438531A1 (en) * 2001-03-07 2002-09-12 Moltech Invent S.A. Thermally insulating structural components resistant to high temperature corrosive media
NZ529849A (en) * 2001-05-30 2005-01-28 Moltech Invent S Aluminium electrowinning cells having a drained cathode bottom and an aluminium collection reservoir
US6818106B2 (en) * 2002-01-25 2004-11-16 Alcoa Inc. Inert anode assembly
NZ535111A (en) * 2002-06-04 2006-09-29 Moltech Invent S Aluminium electrowinning cell design with movable insulating cover sections
WO2006007863A1 (en) * 2004-07-16 2006-01-26 Cathingots Limited Electrolysis apparatus with solid electrolyte electrodes

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1046705A (en) * 1964-05-27 1966-10-26 British Aluminium Co Ltd Improvements in or relating to the operation of electrolytic reduction cells for theproduction of aluminium
WO2004074549A2 (en) * 2003-02-20 2004-09-02 Moltech Invent S.A. Aluminium electrowinning cells with metal-based anodes

Also Published As

Publication number Publication date
EP1996747A2 (en) 2008-12-03
AU2007226245B2 (en) 2011-05-12
CA2643390A1 (en) 2007-09-20
AU2007226245A1 (en) 2007-09-20
US8097144B2 (en) 2012-01-17
NO20084218L (en) 2008-12-02
NZ570739A (en) 2010-10-29
WO2007105125A2 (en) 2007-09-20
US20090114547A1 (en) 2009-05-07

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