1. Recent advances in the leaching of sulphides and the precipitation of iron;Dutrizac,1985
2. Recovery of copper, iron and sulphur from chalcopyrite concentrate using a ferric chloride leach;Haver;J. Metals,1971
3. A review of copper hydrometallurgy;Paynter;J.S. Afr. Inst. Min. Met.,1974
4. Copper hydrometallurgy;Milner,1974
5. The leaching of chalcopyrite with ferric sulphate and ferric chloride;Jones,1976