METHOD OF RECOVERING METALS FROM COMPLEX MINERAL ORE MATERIAL Russian patent published in 1997 - IPC

FIELD: mining industry. SUBSTANCE: in a method of recovering metals from complex mineral ore material, e.g. complex sulfide ore, including crushing raw material, and flotation to produce flotation mineral concentrate stream and flotation waste stream, crushing procedure is followed by conditioning flotation stage and, once flotation is completed, mineral concentrate obtained containing at least one of metals is subjected to repeated crushing to produce recrushed ore material stream which successively passes conditioning agglomeration and agglomeration stages. From the latter, agglomeration concentrate stream is produced containing agglomerates of released minerals. This stream is directed into separation stage to produce mineral-containing agglomeration waste stream and stream of agglomerates. From starting material, zinc, and/or lead, and/or copper are recovered. EFFECT: enhanced efficiency of process. 4 dwg , 3 tbl