FIELD: gold and silver extraction from ores or concentrates. SUBSTANCE: precious metals are leached out from ores or concentrates with 1 to 10 wt. per cent of free of cyanides aqueous salt solution, of 6 to 8 pH, in the presence of oxidant. Then the pulp is filtered, cake is washed with water, solution produced is concentrated and directed to leaching of a new batch of ore or concentrate. Gold and silver are precipitated with amine agent from the solution produced from pulp concentration. Then the gold and silver are filtrated. The solution is then recovered and also directed to leach ore or concentrate. EFFECT: reuse of agents.
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