Electrochemical reduction of metal oxides

Details Electrochemical reduction of metal oxides Electrochemical reduction of metal oxides

C - Chemistry, Metallurgy

25

C

C25C 5/04 (2006.01) C25C 7/02 (2006.01)

Patent

CA 2540234

An electrolytic cell (1) for reducing metal oxide powders and/or pellets in a continuous or semi-continuous manner, the cell includes a cathode (25) in the form of a plate that has an upper surface for supporting metal oxide powders and/or pellets. The plate is supported for movement so as to cause the metal oxide on the upper surface to move toward a forward end of the plate while immersed in a molten electrolyte (21). The cell includes multiple anodes (23) and support structures (63,65) that separately support the cathode and the anodes from above the cell. In a preferred embodiment the anode support structure enables adjustment of the spacing of the anodes above the upper surface of the cathode.

L'invention concerne une cellule électrochimique (1) pour réduire des poudres et/ou des boulettes d'oxyde métallique, de manière continue ou semi-continue, ladite cellule incluant une cathode (25) sous forme de plaque qui présente une surface supérieure pour porter des poudres et/ou des boulettes d'oxyde métallique. Ladite plaque est soutenue par mouvement, de manière à créer un déplacement de l'oxyde métallique sur la surface supérieure, en direction d'une extrémité avant de la plaque, tout en étant en immersion dans un électrolyte fondu (21). La cellule comprend de multiples anodes (23) et des structures support (63, 65) qui soutiennent séparément la cathode et les anodes à partir du dessus de la cellule. Dans un mode de réalisaient préféré, la structure support d'anode permet d'ajuster l'espacement des anodes au-dessus de la surface supérieure de la cathode.

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