FIELD: mining industry; applicable in concentration of weakly magnetic (hematite) ores, the so called ferruginous quartzites. SUBSTANCE: crushed initial ore is ground and classified in hydrocyclones. Then ground initial ore is subjected to magnetic hydraulic separation with addition of strongly magnetic particles through slot-type magnetic systems with crossing the magnetic force lines by ore particles to magnetize ore weakly magnetic particles. Maintained in ground initial ore is concentration of strongly magnetic particles sufficient for flocculation of weakly magnetic particles. EFFECT: production of high-grade iron ore concentrate with iron content more 65%. 2 cl, 1 dwg
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