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ArticleName Dressability study for polymetallic ore deposits of the Zabaikalye Territory
DOI 10.17580/or.2019.03.01
ArticleAuthor Fedotov P. K., Senchenko A. E., Fedotov K. V., Burdonov A. E.

Irkutsk National Research Technical University (Irkutsk, Russia):

Fedotov P. K., Professor, Doctor of Engineering Sciences, Professor,
Fedotov K. V., Head of Chair, Doctor of Engineering Sciences, Professor,
Burdonov A. E., Associate Professor, Candidate of Engineering Sciences,


TOMS Institute LLC «Technologies of mineral separation» (Irkutsk, Russia):

Senchenko A. E., CEO,


This paper covers the dressability studies conducted for polymetallic ores from a deposit in the Zabaikalye Territory. The main valuable components are gold, silver, lead, zinc, and copper. Gold is evenly distributed by size classes with an insignificant concentration in the range of –0.5+0.071 mm. Lead is predominantly concentrated in the size classes of –0.5 mm. Zinc is evenly distributed by size classes with slightly lower grades in the class of –2+1 mm. The main rock-forming minerals are quartz and other silicates, K-feldspars, dolomite and hydromica (77%). The basic ore components are sulfides: pyrite (10%), galena (7%), sphalerite (2%). The ore dressability studies were conducted by the gravity and flotation methods, as well as using a combined gravity/flotation layout in accordance with the methodology of SAG Design Consulting Group. It has been established that high gold content in the concentrate may be obtained using a periodic discharge concentrator with the yield of 0.64%: the gold content in the concentrate was 235 g/t with the recovery of 23.69%. The mass fraction of lead in the concentrate was low (40.3%) with the recovery of 4.18%. The best concentration indicators for lead were achieved using a continuous discharge concentrator, with the lead yield of 2.01%: the mass fraction of lead was 67.47% with the recovery of 21.93%. A combined concentration circuit has been developed, rendering lead concentrate with the lead, gold and silver contents of 62.13%, 40.96 and 1517.15 g/t with the recovery of 88.06%, 56.54% and 88.24%, respectively.

keywords Polymetallic ores, gravity concentration, flotation, concentrate, recovery, material composition, dressability

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