NO20070027L - Highly stable non-carbon flow anodes for aluminum electrowinning - Google Patents

Highly stable non-carbon flow anodes for aluminum electrowinning

Info

Publication number
NO20070027L
NO20070027L NO20070027A NO20070027A NO20070027L NO 20070027 L NO20070027 L NO 20070027L NO 20070027 A NO20070027 A NO 20070027A NO 20070027 A NO20070027 A NO 20070027A NO 20070027 L NO20070027 L NO 20070027L
Authority
NO
Norway
Prior art keywords
anode
electrolyte
anodes
outer portion
highly stable
Prior art date
Application number
NO20070027A
Other languages
Norwegian (no)
Inventor
Thinh T Nguyen
Vittorio De Nora
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
Priority claimed from PCT/IB2005/051718 external-priority patent/WO2005118916A2/en
Application filed by Moltech Invent Sa filed Critical Moltech Invent Sa
Publication of NO20070027L publication Critical patent/NO20070027L/en

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  • Electrolytic Production Of Metals (AREA)

Abstract

Celle for elektroutvinning av aluminium fiia alumina oppløst i en fluoridholdig smelteelektrolytt, omfattende en ikke-karbon-metallbasert anode med en elektrisk ledende metalhsk struktur. Anodestrukturen omfatter en ytre del med en elektrokjemisk aktiv anodeoverflate på hvilken, under elektrolyse, oksygen blir anodisk utviklet, og som er opphengt i elektrolytten i det vesentlige parallelt med en motvendt katode. Anodestrukturen har én eller flere gjennomstrømningsåpninger som strekker seg fra den aktive anodeflate gjeimom den metalliske struktur, idet nevnte gjeimomstrøniningsåpning(er) er anordnet for å styre en sirkulasjon av elekfrolytt drevet av den hurtige unnslippelse av anodisk utviklet oksygen. Den ytre del av anoden omfatter et lag som hovedsakelig inneholder koboltoksid, CoO, for å øke anodens stabilitet.Aluminum free electroluminescence cell dissolved in a fluoride-containing melt electrolyte, comprising a non-carbon metal-based anode with an electrically conductive metallic structure. The anode structure comprises an outer portion having an electrochemically active anode surface on which, during electrolysis, oxygen is anodically developed and which is suspended in the electrolyte substantially parallel to an opposite cathode. The anode structure has one or more flow openings extending from the active anode surface through the metallic structure, said bead flow opening (s) being arranged to control an electrolyte circulation driven by the rapid escape of anodically evolved oxygen. The outer portion of the anode comprises a layer which mainly contains cobalt oxide, CoO, to increase the stability of the anode.

NO20070027A 2004-06-03 2007-01-02 Highly stable non-carbon flow anodes for aluminum electrowinning NO20070027L (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IB2004001900 2004-06-03
PCT/IB2005/051718 WO2005118916A2 (en) 2004-06-03 2005-05-25 High stability flow-through non-carbon anodes for aluminium electrowinning

Publications (1)

Publication Number Publication Date
NO20070027L true NO20070027L (en) 2007-01-02

Family

ID=37781966

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20070027A NO20070027L (en) 2004-06-03 2007-01-02 Highly stable non-carbon flow anodes for aluminum electrowinning

Country Status (1)

Country Link
NO (1) NO20070027L (en)

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