FIELD: demineralizing ores. SUBSTANCE: slime of finally divided particles of demineralized ore is suspended in water. The suspension produced is conditioned with an appropriate amount of hemicellulose, as well as with a mineral gatherer and a frothing agent. Valuable minerals are separated by frothy flotation technique. As a gatherer xanthate is used, as a frothy agent - trietoxybutane. Hemicellulose is produced from the residue remaining after squeezing the vegetable raw material. EFFECT: enhanced efficiency of demineralizing. 3 cl, 6 tbl
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