Physico-chemical analysis methods investigated the oxidation and changes in the surface properties of minerals that are part of the tailings obtained from the iron ores of the Dashkesan mining and smelting combine. The results of laboratory studies that simulate heap leaching of non-ferrous metals from these wastes are presented. It is shown that sulfuric acid processing of tailings obtained from iron ores improves the properties of percolation materials and increases the percentage yield of non-ferrous metals in solution

doi.org/10.32737/0005-2531-2019-4-48-53