Aluminium-wettable carbon-based body

C - Chemistry – Metallurgy – 25 – C

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C25C 3/08 (2006.01)

Patent

CA 2522839

A carbon body has an aluminium-wettable outer part that is made of a carbon- rich mixture containing aluminium-reactable metal-based particles and carbon. The metal-based particles are made of metal oxide particles and/or partly oxidised metal particles. The metal of the metal~based particles is selected from iron, copper, cobalt, nickel, zinc and manganese. The carbon body can be used in an aluminium electrowinning cell, e.g. as a cathode, or in an apparatus for treating molten aluminium and is wetted by molten aluminium during use.

Corps en carbone comportant une partie extérieure apte à être mouillée par l'aluminium et constituée d'un mélange enrichi en carbone renfermant du carbone et des particules à base de métal aptes à réagir avec l'aluminium. Les particules à base de métal sont composées de particules d'oxyde métallique et de particules d'oxyde métallique partiellement oxydées. Le métal des particules à base de métal est choisi parmi le fer, le cuivre, le cobalt, le nickel, le zinc et le manganèse. Le corps en carbone est utilisable, par exemple comme cathode, dans une cellule d'extraction électrolytique d'aluminium, ou dans un appareil de traitement de l'aluminium en fusion, et lors de sa mise en oeuvre il est mouillé par l'aluminium en fusion.

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