Comparison of energy consumption in improved sulphate process and alternative technologies for zinc electrowinning

CIM Bulletin, Vol. 81, No. 914, 1988

D.L PIRON and M. SIDER, Ecole Polytechnique, Montreal, Quebec

The cost of energy is a growing factor in the cost of zinc production. Electrowinning from sulphate solutions with periodical reverse current or from acidic chloride or alkaline solutions could be the way to lower costs. A comparison of the energy consumption for electrolysis shows that the alkaline solution may be considered the most promising alternative.
Mots Clés: Metallurgy, Electrowinning, Energy consumption, Zinc.