Titanium electrodes for electrometallurgy

Electrolytic extraction of metals can be carried out in chloride electrolyte, sulfate electrolyte and chloride-sulfate mixed electrolyte. In chloride solution electrolysis, chlorine gas is precipitated from the anode. In the past, graphite electrode was used, but the resistance of graphite material is high, so the power consumption is high. Moreover, graphite electrode has low strength, easy loss, short working life, easy to pollute cathode products, and it is difficult to obtain high purity metal. Anodic active coating has low chlorine overpotential, good conductivity, strong chlorine corrosion resistance, long service life of the anode, and ruthenium titanium anode can be used. Oxygen is precipitated from the anode in sulfate solution electrolysis. Iridium titanium anode is usually used.