COMPREHENSIVE ASSESSMENT OF ORE LOSSES AND DILUTION IMPACTING VASILKOVSKY GOLD DEPOSIT PROFITABILITY
Almenov T.M. Zhanakova R.K. Askarova G.E. Shautenov M.R. Amantayuly K.
2025National Academy of Sciences of the Republic of Kazakhstan
News of the National Academy of Sciences of the Republic of Kazakhstan, Series of Geology and Technical Sciences
2025#2025Issue 427 - 45 pp.
The modern development of the Vasilkovsky gold ore deposit is accompanied by decreasing gold content in the ore, increasing mining depths, and shrinking available reserves, all of which significantly impact production economics. This article presents a comprehensive assessment of ore losses and dilution, as well as their influence on the profitability of mining and processing operations. The full production cycle from ore extraction in the open pit to processing at the beneficiation plant is examined, taking into account geological, structural, techno-economic, and technological parameters. Particular attention is paid to identifying interstage relationships that demonstrate how variations in loss and dilution levels affect cost structures. Taking into account the variability of the conditions for normalizing the completeness and quality of ore extraction during the mining of complex-structured gold deposits, as well as the labor intensity of computational work, a downhole optimization of the ratio between ore losses and dilution during extraction is carried out. An integrated assessment methodology has been developed, combining factor analysis and economic modeling, which enables the identification of critical control points for ore quality management. It has been established that process optimization and the use of internal production reserves can significantly reduce unit costs per ton of processed ore mass and enhance mining efficiency. The results can help develop strategies to improve enterprise profitability and competitiveness in challenging mining and economic conditions.
dilution , effect , mineral resources , mining of mineral resources , ore loss , rock mass
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«Mining» department, K.I. Satpayev Kazakh National Research Technical University, Almaty, Kazakhstan
«Metallurgy and Mineral Processing» department, K.I. Satpayev Kazakh National Research Technical University, Almaty, Kazakhstan
Department of Physical Chemistry, Catalysis and Petrochemistry at the Al-Farabi-Kazakh National University, Almaty, Kazakhstan
«Mining» department
«Metallurgy and Mineral Processing» department
Department of Physical Chemistry
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