Irkutsk National Research Technical University (Irkutsk, Russia):

Fedotov P. K., Professor, Doctor of Engineering Sciences, Professor, fedotov@istu.edu
Fedotov K. V., Head of Chair, Doctor of Engineering Sciences, Professor, fedotov@istu.edu
Burdonov A. E., Associate Professor, Candidate of Engineering Sciences, slimbul@inbox.ru

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

Senchenko A. E., CEO, senchenko@tomsgroup.ru

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.

1. Bocharov V. A., Ignatkina V. A., Lapshina G. A., Khachatryan L. S. Development of technology of complex processing of refractory pyrite polymetallic ores of nonferrous metals. Tsvetnye Metally. 2018. No. 4. pp. 27–34. DOI: 10.17580/tsm.2018.04.03.
2. Shumskaya E. N., Poperechnikova O. Yu., Kuptsova A. V. Features of complex ore processing technology. Gornyi Zhurnal. 2016. No. 11. pp. 39–48. DOI: 10.17580/gzh.2016.11.08.
3. Chanturia V. A. Scientific substantiation and development of innovative approaches to integrated mineral processing. Gornyi Zhurnal. 2017. No. 11. pp. 7–13. DOI: 10.17580/gzh.2017.11.01.
4. Wang C., Zheng Y., Yu P. Ore genesis and fluid evolution of the Kaladawan South Zn–Pb–Cu ore field, eastern Altyn Mountains (NW China): Evidence from fluid inclusions, H–O isotopes and geochronology. Ore Geology Reviews. 2018. Vol. 102. pp. 300–312. DOI: 10.1016/j.oregeorev.2018.09.011.
5. Feng B., Zhang W., Guo Y. The flotation separation of galena and pyrite using serpentine as depressant. Powder Technology. 2019. Vol. 342. pp. 486–490. DOI: 10.1016/j.powtec.2018.09.070.
6. Zhai D., Liu J., Cook N. J., Wang X., Yang Y., Zhang A., Jiao Y. Mineralogical, textural, sulfur and lead isotope constraints on the origin of Ag-Pb-Zn mineralization at Bianjiadayuan, Inner Mongolia, NE China. Mineralium Deposita. 2019. Vol. 54, Iss. 1. pp. 47–66. DOI: 10.1007/s00126-018-0804-6.
7. Litvintsev S. A., Chernysheva V. I. Analysis of technological knowledge of ores of the Novo-Shirokinskoye deposit. Equipment and technologies of production processes. XIV International scientific and practical conference (Kulagin Readings). Chita: Transbaikal State University, 2014. pp. 198–204.
8. Myazin V. P., Litvintsev S. A., Chernysheva V. I. Evaluation of the previous metallurgical study of the complex polymetallic ores of the Novoshirokinsky deposit. Vestnik Zabaykalskogo Gosudarstvennogo Universiteta. 2015. No. 4. pp. 28–36.
9. Pirogov G. G. Comparative evaluation of technological schemes for the development of the Novo-Shirokinskoye goldpolymetallic deposit. Gorny Informatsionno-Analiticheskiy Byulleten. 2006. No. 1. pp. 74–78.
10. Shumilova L. V., Kostikova O. S. Sulfidization of silver-polymetallic ores of «Goltsovoe» deposit for decreasing loss of silver in mill tailings. Zapiski Gornogo Instituta. 2018. Vol. 230. pp. 160–166. DOI: 10.25515/pmi.2018.2.160.
11. Andreev D. S. Peculiarities of copper, zinc and lead tests in the processing products of polymetallic ores by method of the X-ray fluorescence analysis. Gornyi Zhurnal. 2012. No. 11. pp. 83–86.
12. Lyutoev V. P., Makeev A. B., Lysyuk A. Yu. Exploring a possibility to determine titanium magnetite ores mineral composition by spectroscopy data. Obogashchenie Rud. 2017. No. 5. pp. 28–36. DOI: 10.17580/or.2017.05.05.
13. Makeev A. B., Lyutoev V. P. Spectroscopy in process mineralogy. The Pizhemskoye deposit titanium ores concentrates mineral composition. Obogashchenie Rud. 2015. No. 5. pp. 33–41. DOI: 10.17580/or.2015.05.06.
14. Ceniceros-Gómez A. E., Macías-Macías K.Y., de la Cruz-Moreno J. E., Gutiérrez-Ruiz M. E., Martínez-Jardines L. G. Characterization of mining tailings in México for the possible recovery of strategic elements. Journal of South American Earth Sciences. 2018. Vol. 88. pp. 72–79. DOI: 10.1016/j.jsames.2018.08.013.
15. Litvintsev S. A., Myazin V. P. Improving the efficiency of gravitational beneficiation of polymetallic gold-bearing ores (on the example of Novo-Shirokinskoye deposit. Equipment and technologies of production processes. XIV International scientific and practical conference (Kulagin Readings). Chita: Transbaikal State University, 2016. pp. 107–110.
16. Pelikh V. V., Salov V. M., Burdonov A. E., Lukyanov N. D. Application of Knelson CVD technology for beneficiation of gold-lead ore. Obogashchenie Rud. 2019. No. 1. pp. 3–11. DOI: 10.17580/or.2019.01.01.
17. Shumskaya E. I., Sizykh A. S. Increasing of gold extraction from polymetallic ore of Novoshirokinskoe deposit. Gornyi Zhurnal. 2014. No. 11. pp. 44–48.
18. Myazin V. P., Litvintseva V. I. Mining prospect of new selective reagents to improve the efficiency of lead-zinc ores flotation of Novo-Shirokinsk deposit. Vestnik Zabaykalskogo Gosudarstvennogo Universiteta. 2017. Vol. 23, No. 2. pp. 4–15.