Electrode and a method for making same

F - Mech Eng,Light,Heat,Weapons – 27 – D

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F27D 11/04 (2006.01) C25C 3/08 (2006.01) C25C 3/12 (2006.01)

Patent

CA 2712981

An electrode for use in an electrolysis process for production of aluminium, the electrode (3, 20) comprises a body of calcinated carbonaceous material connected with an electrical current lead (1, 21). The current lead is embedded in a recess in said carbonaceous body. The recess is wider than the lead and being filled with an electric conductive material. The electric conductive material comprises conductive particles (4, 4'). The method relates to the production of such an electrode and recovery of the conductive material after the electrode has been worn out.

L'invention porte sur une électrode destinée à être utilisée dans un procédé d'électrolyse pour la production d'aluminium. L'électrode (3, 20) comprend un corps de matière carbonée calcinée relié à un fil conducteur de courant électrique (1, 21). Le fil conducteur de courant est encastré dans une cavité dans ledit corps carboné. La cavité est plus large que le fil conducteur et est remplie par un matériau conducteur d'électricité. Le matériau conducteur d'électricité comprend des particules conductrices (4, 4'). Le procédé porte sur la fabrication d'une telle électrode et sur la récupération du matériau conducteur après que l'électrode a été usée.

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