METHOD OF INTRADUMP CONCENTRATION OF GOLD-CONTAINING SUBSTANDARD ORES Russian patent published in 1997 - IPC

FIELD: mining industry; applicable in stockpiling of multicomponent rocks. SUBSTANCE: the offered method includes formation of layers to be concentrated and leached, dissolving of gold with chlorine-containing salts in leached layer and migration of metal salts in metal-containing solutions into concentrated layer. Novelty consists in formation of mineral composition of concentrated layers depending on content in metal-bearing solutions of gold-containing complexes, and location in the layer of minerals precipitating metals ensuring optimal precipitation at obtained concentrations of complexes. EFFECT: higher efficiency. 3 cl, 1 dwg