WO2001042534A3 - Metal-based anodes for aluminium electrowinning cells - Google Patents

Metal-based anodes for aluminium electrowinning cells Download PDF

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Publication number
WO2001042534A3
WO2001042534A3 PCT/IB2000/001814 IB0001814W WO0142534A3 WO 2001042534 A3 WO2001042534 A3 WO 2001042534A3 IB 0001814 W IB0001814 W IB 0001814W WO 0142534 A3 WO0142534 A3 WO 0142534A3
Authority
WO
WIPO (PCT)
Prior art keywords
nickel
outer portion
iron
metal rich
rich outer
Prior art date
Application number
PCT/IB2000/001814
Other languages
French (fr)
Other versions
WO2001042534A2 (en
Inventor
Nora Vittorio De
Jean-Jacques Duruz
Original Assignee
Moltech Invent Sa
Nora Vittorio De
Duruz Jean Jacques
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, Nora Vittorio De, Duruz Jean Jacques filed Critical Moltech Invent Sa
Priority to DE60018464T priority Critical patent/DE60018464T2/en
Priority to AT00977813T priority patent/ATE290106T1/en
Priority to CA002393426A priority patent/CA2393426A1/en
Priority to EP00977813A priority patent/EP1240364B1/en
Priority to AU15444/01A priority patent/AU1544401A/en
Publication of WO2001042534A2 publication Critical patent/WO2001042534A2/en
Publication of WO2001042534A3 publication Critical patent/WO2001042534A3/en
Priority to NO20022714A priority patent/NO20022714D0/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
    • 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)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)

Abstract

An anode of a cell for the electrowinning of aluminium comprises a nickel-iron alloy substrate having a nickel metal rich outer portion with an electrolyte pervious integral nickel-iron oxide containing surface layer which adheres to the nickel metal rich outer portion of the nickel-iron alloy and which in use is electrochemically active for the evolution of oxygen. The oxide surface layer has a thickness such that, during use, the voltage drop therethrough is below the potential of dissolution of nickel-iron oxide. The nickel metal rich outer portion may contain cavities some or all of which, after oxidation, are partly or completely filled with iron oxides to form iron oxide containing inclusions.
PCT/IB2000/001814 1999-12-09 2000-12-06 Metal-based anodes for aluminium electrowinning cells WO2001042534A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE60018464T DE60018464T2 (en) 1999-12-09 2000-12-06 ANODES BASED ON METALS FOR ELECTROLYSIS CELLS FOR ALUMINUM OBTAINING
AT00977813T ATE290106T1 (en) 1999-12-09 2000-12-06 ANODES BASED ON METALS FOR ELECTROLYSIS CELLS FOR ALUMINUM EXTRACTION
CA002393426A CA2393426A1 (en) 1999-12-09 2000-12-06 Metal-based anodes for aluminium electrowinning cells
EP00977813A EP1240364B1 (en) 1999-12-09 2000-12-06 Metal-based anodes for aluminium electrowinning cells
AU15444/01A AU1544401A (en) 1999-12-09 2000-12-06 Metal-based anodes for aluminium electrowinning cells
NO20022714A NO20022714D0 (en) 1999-12-09 2002-06-07 Metal-based anodes for aluminum electrowinning cells

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IBPCT/IB99/01977 1999-12-09
IB9901977 1999-12-09

Publications (2)

Publication Number Publication Date
WO2001042534A2 WO2001042534A2 (en) 2001-06-14
WO2001042534A3 true WO2001042534A3 (en) 2002-01-17

Family

ID=11004938

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2000/001814 WO2001042534A2 (en) 1999-12-09 2000-12-06 Metal-based anodes for aluminium electrowinning cells

Country Status (8)

Country Link
EP (1) EP1240364B1 (en)
AT (1) ATE290106T1 (en)
AU (1) AU1544401A (en)
CA (1) CA2393426A1 (en)
DE (1) DE60018464T2 (en)
ES (1) ES2234697T3 (en)
NO (1) NO20022714D0 (en)
WO (1) WO2001042534A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2450071A1 (en) * 2001-07-13 2003-01-23 Moltech Invent S.A. Alloy-based anode structures for aluminium production
WO2013056363A1 (en) * 2011-10-20 2013-04-25 Institut National De La Recherche Scientifique Inert anodes for aluminum electrolysis and method of production thereof
FR3022917B1 (en) * 2014-06-26 2016-06-24 Rio Tinto Alcan Int Ltd ELECTRODE MATERIAL AND ITS USE IN THE MANUFACTURE OF INERT ANODE
KR101913757B1 (en) 2015-04-21 2018-10-31 주식회사 엘지화학 Method for preparing tungsten oxide
EP3839084A1 (en) * 2019-12-20 2021-06-23 David Jarvis Metal alloy

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4374050A (en) * 1980-11-10 1983-02-15 Aluminum Company Of America Inert electrode compositions
US4541912A (en) * 1983-12-12 1985-09-17 Great Lakes Carbon Corporation Cermet electrode assembly
US4582585A (en) * 1982-09-27 1986-04-15 Aluminum Company Of America Inert electrode composition having agent for controlling oxide growth on electrode made therefrom
EP0306099A1 (en) * 1987-09-02 1989-03-08 MOLTECH Invent S.A. A ceramic/metal composite material
US5284562A (en) * 1992-04-17 1994-02-08 Electrochemical Technology Corp. Non-consumable anode and lining for aluminum electrolytic reduction cell
US5510008A (en) * 1994-10-21 1996-04-23 Sekhar; Jainagesh A. Stable anodes for aluminium production cells
US5865980A (en) * 1997-06-26 1999-02-02 Aluminum Company Of America Electrolysis with a inert electrode containing a ferrite, copper and silver
WO1999036594A1 (en) * 1998-01-20 1999-07-22 Moltech Invent S.A. Non-carbon metal-based anodes for aluminium production cells

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4374050A (en) * 1980-11-10 1983-02-15 Aluminum Company Of America Inert electrode compositions
US4582585A (en) * 1982-09-27 1986-04-15 Aluminum Company Of America Inert electrode composition having agent for controlling oxide growth on electrode made therefrom
US4541912A (en) * 1983-12-12 1985-09-17 Great Lakes Carbon Corporation Cermet electrode assembly
EP0306099A1 (en) * 1987-09-02 1989-03-08 MOLTECH Invent S.A. A ceramic/metal composite material
US5284562A (en) * 1992-04-17 1994-02-08 Electrochemical Technology Corp. Non-consumable anode and lining for aluminum electrolytic reduction cell
US5510008A (en) * 1994-10-21 1996-04-23 Sekhar; Jainagesh A. Stable anodes for aluminium production cells
US5865980A (en) * 1997-06-26 1999-02-02 Aluminum Company Of America Electrolysis with a inert electrode containing a ferrite, copper and silver
WO1999036594A1 (en) * 1998-01-20 1999-07-22 Moltech Invent S.A. Non-carbon metal-based anodes for aluminium production cells

Also Published As

Publication number Publication date
EP1240364B1 (en) 2005-03-02
DE60018464T2 (en) 2005-07-28
ES2234697T3 (en) 2005-07-01
ATE290106T1 (en) 2005-03-15
NO20022714L (en) 2002-06-07
AU1544401A (en) 2001-06-18
EP1240364A2 (en) 2002-09-18
DE60018464D1 (en) 2005-04-07
NO20022714D0 (en) 2002-06-07
WO2001042534A2 (en) 2001-06-14
CA2393426A1 (en) 2001-06-14

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