FIELD: metallurgy.
SUBSTANCE: procedure consists in sorting rejects to fine and large fractions, in screw separation of fine grain, in recovery of tungsten product and in its cleaning. Crude tungsten concentrate is produced after cleaning on a screw separator; this concentrate is further subjected to finishing on tables-concentrators where there is produced gravitation tungsten concentrate directed to flotation. Upon flotation there is obtained high grade conditioned tungsten concentrate and sulphide containing product. Rejects of the screw separator and table-concentrator are united and are subjected to condensation. Discharge after condensation is directed to classification of rejects of tungsten containing ore, while condensed product is subjected to refining in the screw separator. There are produced secondary final tailings and tungsten product sent to cleaning.
EFFECT: increased efficiency of processing rejects of tungsten containing ore.
2 cl, 1 tbl, 1 dwg
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