WO2007148297A3 - Aluminium collection in electrowinning cells - Google Patents

Aluminium collection in electrowinning cells Download PDF

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Publication number
WO2007148297A3
WO2007148297A3 PCT/IB2007/052385 IB2007052385W WO2007148297A3 WO 2007148297 A3 WO2007148297 A3 WO 2007148297A3 IB 2007052385 W IB2007052385 W IB 2007052385W WO 2007148297 A3 WO2007148297 A3 WO 2007148297A3
Authority
WO
WIPO (PCT)
Prior art keywords
aluminium
cathodic
electrolysis chamber
pool
collection reservoir
Prior art date
Application number
PCT/IB2007/052385
Other languages
French (fr)
Other versions
WO2007148297A2 (en
Inventor
Thinh T Nguyen
Frank Schnyder
Kaenel Rene Von
Nora Vittorio De
Original Assignee
Moltech Invent Sa
Thinh T Nguyen
Frank Schnyder
Kaenel Rene Von
Nora Vittorio De
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, Thinh T Nguyen, Frank Schnyder, Kaenel Rene Von, Nora Vittorio De filed Critical Moltech Invent Sa
Priority to CA002653458A priority Critical patent/CA2653458A1/en
Priority to AU2007262349A priority patent/AU2007262349A1/en
Priority to EP07789757A priority patent/EP2064370A2/en
Priority to US12/308,540 priority patent/US20100294671A1/en
Publication of WO2007148297A2 publication Critical patent/WO2007148297A2/en
Publication of WO2007148297A3 publication Critical patent/WO2007148297A3/en
Priority to NO20090331A priority patent/NO20090331L/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
    • C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
    • C25C3/08—Cell construction, e.g. bottoms, walls, cathodes

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 comprises an electrolysis chamber (20) in which alumina is electrolysed to produce aluminium (30) and a collection reservoir (40,40' ) in which product aluminium is collected. The electrolysis chamber and the collection reservoir are in liquid communication so that aluminium produced in the electrolysis chamber can flow from the electrolysis chamber into the collection reservoir. The electrolysis chamber contains one or more metal-based anodes (15). Each anode has an active anodic surface (16) spaced above a facing cathodic surface (31) on which aluminium is produced. The cathodic surface is formed on a structural body (12) by a layer made of molten aluminium into which product aluminium is incorporated during operation. The anodic surface and the cathodic surface have a substantially constant operative position. The cell has means ( 60, 60', 61, 61', 62) for regulating the layer of molten aluminium so the layer forms a shallow or deep continuous cathodic pool (35) that extends continuously under the entire facing active anodic surface of at least one anode. The layer regulating means are arranged to maintain during operation the cathodic surface of the cathodic pool at a substantially constant position by periodic or continuous removal of molten aluminium from the aluminium pool to the collection reservoir at a rate corresponding substantially to the rate of production of the product aluminium that is incorporated into the aluminium pool.
PCT/IB2007/052385 2006-06-22 2007-06-20 Aluminium collection in electrowinning cells WO2007148297A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CA002653458A CA2653458A1 (en) 2006-06-22 2007-06-20 Aluminium collection in electrowinning cells
AU2007262349A AU2007262349A1 (en) 2006-06-22 2007-06-20 Aluminium collection in electrowinning cells
EP07789757A EP2064370A2 (en) 2006-06-22 2007-06-20 Aluminium collection in electrowinning cells
US12/308,540 US20100294671A1 (en) 2006-06-22 2007-06-20 Aluminium collection in electrowinning cells
NO20090331A NO20090331L (en) 2006-06-22 2009-01-21 Aluminum collection in electrical recovery cells

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IBPCT/IB2006/001795 2006-06-22
IB2006001795 2006-06-22

Publications (2)

Publication Number Publication Date
WO2007148297A2 WO2007148297A2 (en) 2007-12-27
WO2007148297A3 true WO2007148297A3 (en) 2008-03-06

Family

ID=38776293

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2007/052385 WO2007148297A2 (en) 2006-06-22 2007-06-20 Aluminium collection in electrowinning cells

Country Status (6)

Country Link
US (1) US20100294671A1 (en)
EP (1) EP2064370A2 (en)
AU (1) AU2007262349A1 (en)
CA (1) CA2653458A1 (en)
NO (1) NO20090331L (en)
WO (1) WO2007148297A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2741112A1 (en) * 2011-05-25 2012-11-25 Rio Tinto Alcan International Inc. Dry cell start-up of an electrolytic cell for aluminium production
US8795507B2 (en) * 2011-08-05 2014-08-05 Alcoa Inc. Apparatus and method for improving magneto-hydrodynamics stability and reducing energy consumption for aluminum reduction cells

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3666653A (en) * 1966-07-06 1972-05-30 Montedison Spa Cryolitic linings in furnaces for aluminum smelting
US4231853A (en) * 1979-04-27 1980-11-04 Ppg Industries, Inc. Cathodic current conducting elements for use in aluminum reduction cells
US4396482A (en) * 1980-07-21 1983-08-02 Aluminum Company Of America Composite cathode
US4540475A (en) * 1982-12-30 1985-09-10 Corning Glass Works Electrolytic Al production with reactive sintered ceramic components of boride-oxide phases
US4551218A (en) * 1981-06-25 1985-11-05 Alcan International Limited Electrolytic reduction cells

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2480474A (en) * 1945-12-14 1949-08-30 Reynolds Metals Co Method of producing aluminum
ZA816719B (en) * 1980-10-07 1982-09-29 Alcan Int Ltd Electrolytic refining of molten metal
ZA824255B (en) * 1981-06-25 1983-05-25 Alcan Int Ltd Electrolytic reduction cells
FR2614320B1 (en) * 1987-04-21 1989-06-30 Pechiney Aluminium METHOD AND DEVICE FOR CONTROLLING THE ADDITIONS OF SOLID ELECTROLYSIS IN ELECTROLYSIS TANKS FOR THE PRODUCTION OF ALUMINUM.
SK286563B6 (en) * 1999-01-08 2009-01-07 Moltech Invent S.A. Aluminium electrowinning cells with oxygen-evolving anodes
AU776726B2 (en) * 1999-10-26 2004-09-16 Moltech Invent S.A. Low temperature operating cell for the electrowinning of aluminium
RU2255149C1 (en) * 2004-05-05 2005-06-27 Общество с ограниченной ответственностью "Инженерно-технологический центр" Method for controlling aluminum cell at changing alumina dissolution rate

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3666653A (en) * 1966-07-06 1972-05-30 Montedison Spa Cryolitic linings in furnaces for aluminum smelting
US4231853A (en) * 1979-04-27 1980-11-04 Ppg Industries, Inc. Cathodic current conducting elements for use in aluminum reduction cells
US4396482A (en) * 1980-07-21 1983-08-02 Aluminum Company Of America Composite cathode
US4551218A (en) * 1981-06-25 1985-11-05 Alcan International Limited Electrolytic reduction cells
US4540475A (en) * 1982-12-30 1985-09-10 Corning Glass Works Electrolytic Al production with reactive sintered ceramic components of boride-oxide phases

Also Published As

Publication number Publication date
NO20090331L (en) 2009-01-21
WO2007148297A2 (en) 2007-12-27
AU2007262349A1 (en) 2007-12-27
EP2064370A2 (en) 2009-06-03
CA2653458A1 (en) 2007-12-27
US20100294671A1 (en) 2010-11-25

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