FIELD: electricity.
SUBSTANCE: anode comprises the base made of alloy containing in wt %: iron 65-96, copper up to 35, nickel up to 20 and one or several additives of molybdenum, manganese, titanium, tantalum, tungsten, vanadium, zirconium, niobium, chrome, aluminium (up to 1), cobalt, cerium, yttrium, silicium and carbon in total up to 5, and protective oxide layer consisting mainly of iron oxides and complex oxides of iron, copper and nickel. The base is made by moulding into metal or sand moulds. The protective oxide layer at the anode surface is obtained by pre-oxidation in air at temperature of 850-1050°C or directly in electrolysis process by oxidation with oxygen released at the anode. The protective oxide layer at the anode surface has thickness of 0.1-3.0 mm.
EFFECT: increasing operating life of the anode.
4 cl, 1 tbl, 2 dwg
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