FIELD: concentration of mineral resources, applicable in processing of difficulty concentrated copper ores. SUBSTANCE: copper ore is ground to optimum size, the pulp is cured until the steady-state value of the redox potential is attained, then electrochemical preparation of pulp is carried out, after electrochemical preparation before each subsequent operation the pulp is treated by a solution of sodium chloride, reagents are introduced and floated. EFFECT: enhanced quality of copper concentrates, rate and selection of process. 2 dwg, 1 tbl
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