CA2269727A1 - Anodes ultrastables pour cellules de production d'aluminium - Google Patents

Anodes ultrastables pour cellules de production d'aluminium Download PDF

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Publication number
CA2269727A1
CA2269727A1 CA002269727A CA2269727A CA2269727A1 CA 2269727 A1 CA2269727 A1 CA 2269727A1 CA 002269727 A CA002269727 A CA 002269727A CA 2269727 A CA2269727 A CA 2269727A CA 2269727 A1 CA2269727 A1 CA 2269727A1
Authority
CA
Canada
Prior art keywords
aluminum
nickel
additive element
iron
elements
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.)
Abandoned
Application number
CA002269727A
Other languages
English (en)
Inventor
Jainagesh A. Sekhar
Vittorio De Nora
James Jenq Liu
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
Individual
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 Individual filed Critical Individual
Publication of CA2269727A1 publication Critical patent/CA2269727A1/fr
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/23—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces involving a self-propagating high-temperature synthesis or reaction sintering step
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C22C1/047—Making non-ferrous alloys by powder metallurgy comprising intermetallic compounds
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
    • C25C7/02—Electrodes; Connections thereof

Landscapes

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

Abstract

Une anode, destinée à l'extraction électrolytique d'aluminium par électrolyse d'alumine dissoute dans un électrolyte fondu à base de fluorure, comprend un produit réactionnel micropyrétique poreux à base de nickel, d'aluminium, de fer, de cuivre et au moins un additif choisi entre le silicium, l'étain, le zinc, le vanadium, l'indium, le hafnium, le tungstène, les éléments de la série des lanthanides à partir du praesodyme, et un mischmetal. Le produit réactionnel micropyrétique contient des phases métalliques et intermétalliques, avec une surface oxydée composite produite in situ par polarisation anodique dudit produit réactionnel dans un électrolyte fondu à base de fluorure contenant de l'alumine dissoute, ou par traitement à haute température dans un gaz oxydant. La surface oxydée composite comprend généralement une partie externe riche en fer, relativement dense, et une partie interne riche en aluminates, relativement poreuse.
CA002269727A 1996-09-23 1997-09-23 Anodes ultrastables pour cellules de production d'aluminium Abandoned CA2269727A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US9615176 1996-09-23
WOPCT/US96/15176 1996-09-23
PCT/US1997/016865 WO1998012363A1 (fr) 1996-09-23 1997-09-23 Anodes ultrastables pour cellules de production d'aluminium

Publications (1)

Publication Number Publication Date
CA2269727A1 true CA2269727A1 (fr) 1998-03-26

Family

ID=22255837

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002269727A Abandoned CA2269727A1 (fr) 1996-09-23 1997-09-23 Anodes ultrastables pour cellules de production d'aluminium

Country Status (4)

Country Link
EP (1) EP0931182B1 (fr)
CA (1) CA2269727A1 (fr)
DE (1) DE69708903T2 (fr)
WO (1) WO1998012363A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6423195B1 (en) * 1997-06-26 2002-07-23 Alcoa Inc. Inert anode containing oxides of nickel, iron and zinc useful for the electrolytic production of metals
WO2001043208A2 (fr) * 1999-12-09 2001-06-14 Duruz, Jean-Jacques CELLULES D'ELECTROEXTRACTION D'ALUMINIUM FAISANT APPEL A DES ANODES A METAL
AU2003207934B2 (en) * 2002-03-15 2008-10-09 Rio Tinto Alcan International Limited Surface oxidised nickel-iron metal anodes for aluminium production
AP2015008186A0 (en) * 2012-06-11 2015-01-31 Inner Mongolia United Ind Co Ltd Inner alloy anode used for aluminum electrolysis and preparation method therefor
FR3022917B1 (fr) * 2014-06-26 2016-06-24 Rio Tinto Alcan Int Ltd Materiau d'electrode et son utilisation pour la fabrication d'anode inerte
CN115849419B (zh) * 2022-11-22 2024-03-29 贵州大学 一种载氟氧化铝的生产方法及生产的载氟氧化铝的应用

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69326843T2 (de) * 1993-04-19 2000-05-18 Moltech Invent Sa Mikro-pyrotechnisch-erzeugte bauteile von zellen fuer die aluminiumherstellung
US5510008A (en) * 1994-10-21 1996-04-23 Sekhar; Jainagesh A. Stable anodes for aluminium production cells

Also Published As

Publication number Publication date
EP0931182A1 (fr) 1999-07-28
WO1998012363A1 (fr) 1998-03-26
EP0931182B1 (fr) 2001-12-05
DE69708903D1 (de) 2002-01-17
DE69708903T2 (de) 2002-06-27

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued