| 简介 |
A cermet inert anode for the electrolytic production of metals such as aluminum is disclosed. The inert anode comprises a ceramic phase of the formula NixFe2yMzO(3y+x+z).plusmn..delta., where M is at least one metal selected from Zn, Co, Al, Li, Cu, Ti, V, Cr, Zr, Nb, Ta, W, Mb, Hf and rare earths, preferably Zn and/or Co, x is from 0.1 to 0.99, y is from 0.0001 to 0.9, z is from 0.0001 to 0.5, and .delta. is from 0 to about 0.3. Preferred ceramic compositions comprise Fe2O3, NiO and ZnO or CoO. The cermet inert anode also comprises a metal phase such as Cu, Ag, Pd, Pt, Au, Rh, Ru, Ir and/or Os. A preferred metal phase comprises a Cu and Ag. The cermet inert anodes may be used in electrolytic reduction cells for the production of commercial purity aluminum as well as other metals. |
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