IMPROVING EFFICIENCY OF GOLD RECOVERY FROM COMPLEX GOLD-POLYMETALLIC ORES BY GRAVITY SEPARATION
https://doi.org/10.21285/2541-9455-2018-41-1-126-136
Abstract
The Purpose of the paper is development of an efficient technology for complex polymetallic ore processing based on the improved gold gravity separation in the head of the production train. Methods. The following analytical and experimental methods are used: chemical and fire assay analyses of the feed and concentrate, size fraction analysis, bench scale and pilot plant gravity tests, statistical analysis of experimental data and mathematical modeling. Results. The study results show that the direct gravity concentration provides relatively good recovery of valuable components. The recovery of gold to the primary gravity concentrate varies from 27.57 to 36.48 %, silver from 14.79 to 22 % and lead from 14.66 to 27.94 %. The highest recovery of gold was achieved under ore dressing using a modernized jigging box. The conducted studies show that there is a possibility in principle to increase the recovery of valuable component to the gravitation concentrate. In this case the recovery of gold to the gravity concentrate may be increased by 3 %, silver by 7.5 %, lead by 3.8 %. The expected economic effect from the introduction of the proposed technical solution will estimate RUB129,562,579.
About the Authors
V. Myazin
Transbaikal State University
Russian Federation
Russian Federation
Doctor of technical sciences, Professor of the Department of Mineral Processing and Secondary Raw Materials
30, Aleksandro-Zavodskaya St., Chita, 672039, Russian Federation
S. Litvintsev
Transbaikal State University
Russian Federation
Russian Federation
Postgraduate student of the Department of Mineral Processing and Secondary Raw Materials
30, Aleksandro-Zavodskaya St., Chita, 672039, Russian Federation
References
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Review
For citations:
Myazin V., Litvintsev S. IMPROVING EFFICIENCY OF GOLD RECOVERY FROM COMPLEX GOLD-POLYMETALLIC ORES BY GRAVITY SEPARATION. Earth sciences and subsoil use. 2018;41(1):126-136. (In Russ.) https://doi.org/10.21285/2541-9455-2018-41-1-126-136
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