Treated carbon or carbon-based cathodic components of...

Details Treated carbon or carbon-based cathodic components of... Treated carbon or carbon-based cathodic components of...

C - Chemistry, Metallurgy

25

C

C25C 3/08 (2006.01) C04B 41/50 (2006.01) C04B 41/52 (2006.01)

Patent

CA 2160468

Carbon or carbon-based cathodes and cell bottoms of electrolytic cells for the production of aluminium in particular by the electrolysis of alumina in a molten halide electrolyte such as cryolite, are treated to better resist intercalation of sodium in the cell operating conditions by impregnation and/or coating with colloidal alumina ceria, cerium acetate, silica, alumina, lithia, yttria, thoria, zirconia, magnesia or monoaluminium phosphate followed by drying and heat treatment.

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