METHOD OF SELECTIVE INTRADUMP CONCENTRATION OF METAL-CONTAINING ROCKS Russian patent published in 1997 - IPC

FIELD: mining industry; applicable in stockpiling of substandard ores and rocks. SUBSTANCE: the offered method includes formation of impervious and drainage base, pulp feed-line and water intake structures and placing of concentrated and leaching layers of tailings. Novelty consists in that selective dissolving and precipitation of metals are provided by location of concentrated layers under leached layer from top down in the sequence corresponding to the rising value of negative electricity of metals contained in the layer in the amount corresponding to the number of migrating metals. EFFECT: higher efficiency. 1 dwg