FIELD: chemistry.
SUBSTANCE: invention relates to method of concentrating silicate-containing minerals and ores by means of foam flotation, in particular, to method of reverse flotation in presence of finely dispersed collector agent. Nanoemulsion contains, at least, one collector for flotation of silicate minerals, at least, one emulsifier and water. Average size of collector particles constitutes from 1 nm to 6 nm, and collector represents compound, containing, at least, one nitrogen atom and, at least, one hydrocarbon group, which has from 6 to 30 carbon atoms. Nanoemulsion is obtained by passing collector, emulsifier and water mixture through high pressure homogeniser at pressure from 100 to 1500 bar.
EFFECT: increase of flotation efficiency.
11 cl, 3 dwg, 3 tbl, 8 ex
