NO20022714L - Metal-based anodes for aluminum electrowinning cells - Google Patents

Metal-based anodes for aluminum electrowinning cells

Info

Publication number
NO20022714L
NO20022714L NO20022714A NO20022714A NO20022714L NO 20022714 L NO20022714 L NO 20022714L NO 20022714 A NO20022714 A NO 20022714A NO 20022714 A NO20022714 A NO 20022714A NO 20022714 L NO20022714 L NO 20022714L
Authority
NO
Norway
Prior art keywords
nickel
outer portion
iron
metal rich
rich outer
Prior art date
Application number
NO20022714A
Other languages
Norwegian (no)
Other versions
NO20022714D0 (en
Inventor
Vittorio De Nora
Jean-Jacques Duruz
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
Publication of NO20022714D0 publication Critical patent/NO20022714D0/en
Publication of NO20022714L publication Critical patent/NO20022714L/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.
NO20022714A 1999-12-09 2002-06-07 Metal-based anodes for aluminum electrowinning cells NO20022714L (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IB9901977 1999-12-09
PCT/IB2000/001814 WO2001042534A2 (en) 1999-12-09 2000-12-06 Metal-based anodes for aluminium electrowinning cells

Publications (2)

Publication Number Publication Date
NO20022714D0 NO20022714D0 (en) 2002-06-07
NO20022714L true NO20022714L (en) 2002-06-07

Family

ID=11004938

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20022714A NO20022714L (en) 1999-12-09 2002-06-07 Metal-based anodes for aluminum 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) NO20022714L (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
EP1448810B1 (en) * 2001-07-13 2008-01-02 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

Family Cites Families (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
EP0306100A1 (en) * 1987-09-02 1989-03-08 MOLTECH Invent S.A. A composite ceramic/metal 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
CA2317800C (en) * 1998-01-20 2008-04-01 Moltech Invent S.A. Non-carbon metal-based anodes for aluminium production cells

Also Published As

Publication number Publication date
WO2001042534A2 (en) 2001-06-14
NO20022714D0 (en) 2002-06-07
WO2001042534A3 (en) 2002-01-17
EP1240364A2 (en) 2002-09-18
ES2234697T3 (en) 2005-07-01
CA2393426A1 (en) 2001-06-14
DE60018464T2 (en) 2005-07-28
ATE290106T1 (en) 2005-03-15
EP1240364B1 (en) 2005-03-02
DE60018464D1 (en) 2005-04-07
AU1544401A (en) 2001-06-18

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Legal Events

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FC2A Withdrawal, rejection or dismissal of laid open patent application