Mining of Mineral Deposits

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ISSN 2415-3435 (Print)

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Reprocessing of ore heap leach tailings at the Vasilkovsky GOK, Kazakhstan

Dinara Kaumetova1, Ibatolla Arystan1, Khasen Absalyamov2, Karlygash Zhusupova3, Didar Zhanienov2

1Karaganda Technical University, Karaganda, Kazakhstan

2Sh. Ualikhanov Kokshetau University, Kokshetau, Kazakhstan

3Satbayev University, Almaty, Kazakhstan

Min. miner. depos. 2022, 16(1):77-83

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      Purpose. Representation in a generalized form of the conducted research on the development of technology for heap leaching of gold-bearing tailings at the Vasilkovsky GOK (Altyntau Kokshetau), which can be used to recover gold from technogenic deposits in Kazakhstan.

      Methods. The research on the gold recovery from the ore beneficiation tailings at the Vasilkovsky deposit is conducted using direct cyanidation. Experiments are performed in open heat-resistant beakers equipped with a mechanical agitator. The preparation of the material for cyanidation consists of the following operations, such as grinding, water washing and alkaline treatment followed by cyanidation. The optimal cyanidation parameters are determined by performing a series of experiments with a change in one parameter at a constant value of others. After the optimal process duration is determined, a series of experiments are conducted with a change in the solids content in the pulp of 20, 25, 33, 50 and 100%. The concentration of cyanide in the solution is 0.1-1.0 g/dm3. The concentration of sodium thiosulphate in the cyanide solution is 0.5-5.0 g/dm3. The process temperature varies within 20, 30, and 40°С. The content of the nutrient medium is the sodium thiosulphate for the used culture T10.

      Findings. It has been determined that with an increase in the solids content in the pulp, the degree of gold recovery from tai-lings increases, reaching a maximum of 97.5%, with a ratio of (solid : liquid) S:L = 1:1. When the solids content in the pulp is below 50%, a longer agitation leaching of the pulp is required to achieve a recovery of at least 85-90%, which, in turn, leads to high operating costs.

      Originality. For the first time it has been found that the optimal solids content for maximum gold recovery in the pulp can be considered 50% (or S:L = 1:1).

      Practical implications. Increasing the solids content in the pulp contributes to the duration of the solvent contact with the ore mass, which allows the use of less concentrated solutions of the leaching agent.

      Keywords: heap leaching, gold, ore, beneficiation tailings, solution


  1. Uteshov, Y., Galiyev, D., Galiyev, S., Rysbekov, K., & Nаuryzbayeva, D. (2021). Potential for increasing the efficiency of design processes for mining the solid mineral deposits based on digitalization and advanced analytics. Mining of Mineral Deposits, 15(2), 102-110.
  2. Petrov, N.I., Dimitrova, K.Y., & Baskanbayeva, D.D. (2021). On the reliability of technological innovation systems. IOP Conference Series: Materials Science and Engineering, (1031), 012044.
  3. Koval, V., Mikhno, I., Udovychenko, I., Gordiichuk, Y., & Kalina, I. (2021). Sustainable natural resource management to ensure strategic environmental development. TEM Journal, 10(3), 1022-1030.
  4. Buchholz, P., & Brandenburg, T. (2018). Demand, supply, and price trends for mineral raw materials relevant to the renewable energy transition wind energy, solar photovoltaic energy, and energy storage. Chemie Ingenieur Technik, 90(1-2), 141-153.
  5. Rosenau-Tornow, D., Buchholz, P., Riemann, A., & Wagner, M. (2009). Assessing the long-term supply risks for mineral raw materials – A combined evaluation of past and future trends. Resources Policy, 34(4), 161-175.
  6. Hiskey, J.B. (1985). Gold and silver extraction: The application of heap-leaching cyanidation. Arizona Bureau of Geology and Mineral Technology Field Notes, 15(4), 1-5.
  7. Khairullayev, N.B., Aliev, S.B., Yusupova, S.А., Eluzakh, M., & Akhmetkanov, D.K. (2021). Studies of solution activation in geotechnological mining methods. Ugol’, (9), 55-57.
  8. Lyashenko, V.I. (2001). Improvement of mining of mineral resources with combined leaching methods. Gornyi Zhurnal, (1), 28-35.
  9. Arystan, I.D., Nemova, N.A., Baizbaev, M.B., Mataev, A.K. (2021). Efficiency of modified concrete in lining in underground structures. IOP Conference Series: Earth and Environmental Science, 773(1), 012063.
  10. Nurtazina, N.D., & Syzdykova, L. (2021). Kinetics of bornite leaching in the presence of glycine. Vestnik KazNRTU, 143(4), 117-126.
  11. Golik, V.I., Razorenov, Y.I., & Lyashenko, V.I. (2018). Conditions of leaching non-ferrous metals from non-commercial reserves. Bulletin of the Tomsk Polytechnic University, 329(6), 6-16.
  12. Ghorbani, Y., Becker, M., Mainza, A., Franzidis, J.P., & Petersen, J. (2011). Large particle effects in chemical/biochemical heap leach processes – A review. Minerals Engineering, 24(11), 1172-1184.
  13. Marsden, J.O. (2006). Overview of gold processing techniques around the world. Mining, Metallurgy & Exploration, 23(3), 121-125.
  14. La Brooy, S.R., Linge, H.G., & Walker, G.S. (1994). Review of gold extraction from ores. Minerals Engineering, 7(10), 1213-1241.
  15. Prasad, M.S., Mensah-Biney, R., & Pizarro, R.S. (1991). Modern trends in gold processing – Overview. Minerals Engineering, 4(12), 1257-1277.
  16. Palomo-Briones, R., Ovando-Franco, M., Razo-Flores, E., Celis, L.B., Rangel-Méndez, J.R., Vences-Álvarez, E., & Briones-Gallardo, R. (2016). An overview of reclaimed wastewater reuse in gold heap leaching. Mineral Processing and Extractive Metallurgy Review, 37(4), 274-285.
  17. Petersen, J. (2016). Heap leaching as a key technology for recovery of values from low-grade ores – A brief overview. Hydrometallurgy, (165), 206-212.
  18. Dyachkov, B.A., Aitbayeva, S.S., Mizernaya, M.A., Amralinova, B.B., & Bissatova, A.E. (2020). New data on non-traditional types of East Kazakhstan rare metal ore. Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, (4), 11-16.
  19. Dyachkov, B.A., Bissatova, A.Y., Mizernaya, M.A., Zimanovskaya, N.A., Oitseva, T.A., Amralinova, B.B., Aitbayeva, S.S., Kuzmina, O.N., & Orazbekova, G.B. (2021). Specific features of geotectonic development and ore potential in Southern Altai (Eastern Kazakhstan). Geology of Ore Deposits, 63(5), 383-408.
  20. Stupnik, N., Kalinichenko, V., Kolosov, V., Pismennyy, S., & Shepel, A. (2014). Modeling of stopes in soft ores during ore mining. Metallurgical and Mining Industry, 6(3), 32-37.
  21. Dyachkov, B.A., Amralinova, B.B., Mataybaeva, I.E., Dolgopolova, A.V., Mizerny, A.I., & Miroshnikova, A.P. (2017). Laws of formation and criteria for predicting nickel content in weathering crusts of east Kazakhstan. Journal of the Geological Society of India, 89(5), 605-609.
  22. Rakishev, B.R., & Galiev, D.A. (2015). Optimization of the ore flow quality characteristics in the quarry in road-rail transport. Metallurgical and Mining Industry, 7(4), 356-362.
  23. Yulusov, S., Surkova, T.Y., Kozlov, V.A., & Barmenshinova, M. (2018). Application of hydrolytic precipitation for separation of rare-earth and impurity. Journal of Chemical Technology and Metallurgy, 53(1), 27-30.
  24. Telkov, Sh.A., Motovilov, I.Tu., Barmenshinova, M.B., & Abisheva, Z.S. (2021). Study of gravity-flotation concentration of lead-zinc ore at the Shalkiya deposit. Obogashchenie Rud, (6), 9-15.
  25. Umarbekova, Z.T., Zholtayev, G.Z., Zholtayev, G.Z., Amralinova, B.B., & Mataibaeva, I.E. (2020). Silver halides in the hypergene zone of the Arkharly gold deposit as indicators of their formation in dry and hot climate (Dzungar Alatau, Kazakhstan). International Journal of Engineering Research and Technology, 13(1), 181-190.
  26. Bitimbaev, M., & Bahmagambetova, G. (2021). Development of innovative technology for continuous heap leaching of gold. Bulletin of the National Engineering Academy of the Republic of Kazakhstan, 80(2), 130-135.
  27. Ghorbani, Y., Franzidis, J.P., & Petersen, J. (2016). Heap leaching technology-current state, innovations, and future directions: A review. Mineral Processing and Extractive Metallurgy Review, 37(2), 73-119.
  28. Balbekova, B.K., & Toleuova, A.R. (2019). Study of the sulfuric acid leaching process of the rare earth elements (REE) from the scheelite concentrate. Vestnik KazNRTU, 689-693.
  29. Popovych, V., Telak, J., Telak, O., Malovanyy, M., Yakovchuk, R., & Popovych, N. (2020). Migration of hazardous components of municipal landfill leachates into the environment. Journal of Ecological Engineering, 21(1), 52-62.
  30. Zhautikov, B.A., & Aikeyeva, A.A. (2018). Development of the system for air gap adjustment and skip protection of electromagnetic lifting unit. Journal of Mining Institute, (229), 62-69.
  31. Sladkowski, A., Utegenova, A., Elemesov, K., & Stolpovskikh, I. (2017). Determining of the rational capacity of a bunker for cyclic-and-continuous technology in quarries. Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, (6), 29-33.
  32. Bartlett, R.W. (1997). Metal extraction from ores by heap leaching. Metallurgical and Materials Transactions B, 28(4), 529-545.
  33. Dyussembayeva, K.S., Assubayeva, S.K., Baibatsha, A.B., Kassenova, A.T., & Bekbotayeva, A.A. (2014). Study oxidation zone of Naymanzhal gold deposit (central Kazakhstan) the purpose of it develop with methods of heap leaching. Life Science Journal, 11(7), 470-475.
  34. Wan, R.Y., & LeVier, K.M. (2003). Solution chemistry factors for gold thiosulfate heap leaching. International Journal of Mineral Processing, 72(1-4), 311-322.
  35. Onika, S.G., Rysbekov, K.B., Aben, E.K., & Bahmagambetova, G.B. (2020). Leaching rate dependence on productive solution temperature. Vestnik KazNRTU, 142(6), 700-705.
  36. Chekushina, T.V., Vorobyev, A.E., Lyashenko, V.I., & Tcharo, K. (2019). Efficiency of heap leaching of metals from raw ore taking into account the influence of climatic factors. Obogashchenie Rud, 9-12.
  37. Aben, E., Toktaruly, B., Khairullayev, N., Yeluzakh, M. (2021). Analyzing changes in a leach solution oxygenation in the process of uranium ore borehole mining. Mining of Mineral Deposits, 15(3), 39-44.
  38. Yelemessov, K., Krupnik, L., Bortebayev, S., Beisenov, B., Baskanbayeva, D., & Igbayeva, A. (2020). Polymer concrete and fibre concrete as efficient materials for manufacture of gear cases and pumps. E3S Web of Conferences, (168), 00018.
  39. Baskanbayeva, D.D., Krupnik, L.A., Yelemessov, K.K., Bortebayev, S.A., & Igbayeva, A.E. (2020). Justification of rational parameters for manufacturing pump housings made of fibroconcrete. Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, (5), 68-74.
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