FIELD: technological processes.
SUBSTANCE: invention relates to methods for production of collective concentrate of enrichment for extraction of noble metals from clay-salt wastes (slurries) of enterprises that process potassium-magnesium ores and rock salt by methods of pyro- or hydrometallurgical process. Method of collective concentrate production for extraction of noble metals includes three-stage hydrocycloning with extraction of concentrate that represents a mixture of residue and floated material with ratio of solids and liquids that equals 1:1, dehydration, preliminary drying, granulation. Concentrate is desalinated to 20±5%, granulated to size of granules of 8 and 15 mm, dried until moisture of 0.5%.
EFFECT: improved extraction of noble metals from concentrate.
2 cl, 1 tbl
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