EXTRACTION OF METALS FROM ORES PROCESSING WASTES
The characteristics of hydrometallurgical processes of chemical enrichment of met- al-ferrous minerals were given. The methods of intensification of the process, leaching ores and using mechanical activation technology in disintegrators were considered. The results of the leaching tailings gold deposits in northern Kazakhstan in various modes are submitted. For industrial development recommended technology of gold heap leaching of flotation tail- ings. It's noted that total elimination of tailings after adjusting the residual metal content up to health standards is the only real way to protect environ-mental protection, which is op- posed to the trends of the biological reclamation of waste.