METHOD FOR DRESSING IRON-CONTAINING ORES Russian patent published in 2017 - IPC B03B7/00 B03C1/00 

FIELD: mining engineering.

SUBSTANCE: method includes several grinding stages, wet magnetic separation of ground products of each stage with production of middlings and waste tailings and with production of concentrate by means of wet magnetic separation after last grinding stage. The middlings after the first grinding stage are separated by magnetic properties to produce magnetic and medium-magnetic products. The medium-magnetic product is ground and dressed by wet magnetic separation in several stages with production of waste tailings and concentrate after last grinding stage. The magnetic product is ground in a separate second stage and dressed by wet magnetic separation to produce second concentrate and waste tailings. The second concentrate is ground in a separate third stage and dressed by wet magnetic separation to produce a high-quality concentrate and waste tailings.

EFFECT: increased efficiency of iron-containing ores dressing, improved quality of the iron concentrate.

3 cl, 5 dwg, 2 tbl