Application of the Environmentally Non-Aggressive Dissolvents to Mobilization of Metals in Tailings in the Norilsk Region
A. G. MIKHAILOV, M. YU. KHARITONOVA, I. I. VASHLAEV, M. L. SVIRIDOVA
Institute of Chemistry and Chemical Technology, Siberian Branch, Russian Academy of Sciences, ul. Akademgorodok 50/24, Krasnoyarsk, 660036 Russia
Keywords: Хвосты обогащения, водные растворы солей металлов, цветные и благородные металлы, выщелачивание, гумусовые кислоты, лигнин, tailings, water solutions of metal salts, nonferrous and noble metals, leaching, humus acids, lignin
Abstract
Under analysis is on-site extractability of nonferrous and noble metals from tailings by leaching using natural reagents (humus acids, water, lignin). Redistribution of nonferrous and noble metals in percolation bed made of old tailings in the Norilsk copper-nickel ore field is studied. Kinetics of dissolving of nonferrous and noble metals under capillary ascensional percolation is investigated. It is shown that directional capillary percolation of solutions is applicable to extraction of nonferrous and noble metals from long-term storage mining waste.
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