DE60204307D1 - ANODES BASED ON METALS FOR ELECTROLYSIS CELLS FOR ALUMINUM OBTAINING - Google Patents

ANODES BASED ON METALS FOR ELECTROLYSIS CELLS FOR ALUMINUM OBTAINING

Info

Publication number
DE60204307D1
DE60204307D1 DE60204307T DE60204307T DE60204307D1 DE 60204307 D1 DE60204307 D1 DE 60204307D1 DE 60204307 T DE60204307 T DE 60204307T DE 60204307 T DE60204307 T DE 60204307T DE 60204307 D1 DE60204307 D1 DE 60204307D1
Authority
DE
Germany
Prior art keywords
layer
core
metals
electrolysis cells
silver
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.)
Expired - Fee Related
Application number
DE60204307T
Other languages
German (de)
Other versions
DE60204307T2 (en
Inventor
T Nguyen
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
Publication of DE60204307D1 publication Critical patent/DE60204307D1/en
Application granted granted Critical
Publication of DE60204307T2 publication Critical patent/DE60204307T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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 metal-based anode substrate of a cell for the electrowinning of aluminium comprises a nickel-alloy based core, a layer of silver on the core and a layer comprising nickel and iron covering the silver layer and serving as an anchorage layer for anchoring an electrochemically active surface coating on top of the anode substrate. The electrochemically active coating may be a cerium-based coating. The silver layer inhibits diffusion of fluoride species into the core and prevents interdiffusion of constituents of the core and constituents of the anchorage layer.
DE60204307T 2001-03-07 2002-03-04 ANODES BASED ON METALS FOR ELECTROLYSIS CELLS FOR ALUMINUM OBTAINING Expired - Fee Related DE60204307T2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
WOPCT/IB01/00322 2001-03-07
IB0100322 2001-03-07
PCT/IB2002/000667 WO2002070786A1 (en) 2001-03-07 2002-03-04 Metal-based anodes for aluminium production cells

Publications (2)

Publication Number Publication Date
DE60204307D1 true DE60204307D1 (en) 2005-06-30
DE60204307T2 DE60204307T2 (en) 2006-02-02

Family

ID=11004052

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60204307T Expired - Fee Related DE60204307T2 (en) 2001-03-07 2002-03-04 ANODES BASED ON METALS FOR ELECTROLYSIS CELLS FOR ALUMINUM OBTAINING

Country Status (8)

Country Link
EP (1) EP1381716B1 (en)
AT (1) ATE296367T1 (en)
AU (1) AU2002236142B2 (en)
CA (1) CA2437671A1 (en)
DE (1) DE60204307T2 (en)
ES (1) ES2239709T3 (en)
NZ (1) NZ527307A (en)
WO (1) WO2002070786A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040216995A1 (en) * 2001-04-12 2004-11-04 Nguyen Thinh T Nickel-iron anodes for aluminium electrowinning cells

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000006803A1 (en) * 1998-07-30 2000-02-10 Moltech Invent S.A. Nickel-iron alloy-based anodes for aluminium electrowinning cells
ES2180506T3 (en) * 1999-01-08 2003-02-16 Moltech Invent Sa LOW ALLOY AND HIGH RESISTANCE STEEL KNOTS FOR ALUMINUM ELECTROLYTIC OBTAINING CELLS.

Also Published As

Publication number Publication date
CA2437671A1 (en) 2002-09-12
WO2002070786A1 (en) 2002-09-12
EP1381716B1 (en) 2005-05-25
ATE296367T1 (en) 2005-06-15
ES2239709T3 (en) 2005-10-01
EP1381716A1 (en) 2004-01-21
NZ527307A (en) 2005-02-25
AU2002236142B2 (en) 2007-04-05
DE60204307T2 (en) 2006-02-02

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee