Anode of dimensionally stable oxide-ceramic individual elements

Details Anode of dimensionally stable oxide-ceramic individual elements Anode of dimensionally stable oxide-ceramic individual elements

C - Chemistry, Metallurgy

25

C

204/194

C25C 3/12 (2006.01) C25C 7/02 (2006.01)

Patent

CA 1162880

ABSTRACT OF THE DISCLOSURE An anode of a fusion electrolysis furnace for the production of aluminium consists of a plurality of individual oxide-ceramic elements of stable dimensions; the individual elements have linear cross-sectional dimensions of 2-12 cm. on the current exit surface, the elements have a length which corresponds to 2-20 times the value of the mean linear cross-sectional dimension, they are arranged approximately parallel with a mean distance between outer surfaces of 1-20 mm. and are held together mechanically stably at the end facing the current entry with an electrically conductive device situated outside the molten electrolyte; the anode in bundle configuration, in com- parison with oxide-ceramic anodes of large format, has a lower corrosion, is simpler to produce ceramically and has a greater stability to temperature changes.

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