STUDY OF THE MATERIAL COMPOSITION OF GOLD-COPPER ORES FROM KAZAKHSTANI DEPOSITS

Copper in such gold-copper ores is both a valuable component and a detrimental impurity that complicates the processing of gold by cyanidation. As cyanidation is the primary process in gold recovery technology, ores or concentrates that for one reason or another are difficult to cyanide are classified as difficult to enrich. The degree of resistance of gold ores to cyanidation is determined by a number of factors that relate to the combination of gold particles with minerals and rocks, as well as natural minerals and natural substances that retard gold dissolution and increase cyanide uptake, and permanent sorbents in the ore. These resistances may include physical and chemical suppression as well as sorption activity of minerals present in the ore. Thus, the stage of determining the material composition and characterization of gold-copper ores is important, as the further strategy for selecting a cyanide leaching technology depends on it. As a result of the conducted research it was found out that in the composition of the ore gold content in the sample amounted to – 1.2 g/t. Silver content also amounted to – 1.2g/t. The total amount of copper amounted to 0.15%. The iron content amounted to 5.10 %. The total amount of sulfur was 0.34%. Keywords: gold-copper ore, primary ore minerals, pyrite, rational analysis, cyanidation.