HISTORY OF FORMATION AND PROSPECTS FOR PROCESSING OXIDIZED OFF-BALANCE ORE OF THE KALMAKYR DEPOSIT

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Published: 13.09.2026
DOI: https://doi.org/10.70769/3030-3214.SRT.4.3.2026.32
Keywords:
Kalmakyr, oxidized copper ores, off-balance ores, technogenic dumps, malachite, chrysocolla, heap leaching, tank leaching, copper, gold, silver

Main Article Content

Askarov, A.M.
Ministry of Mining Industry and Geology of the Republic of Uzbekistan
Larionov, S.V.
JSC “Almalyk Mining and Metallurgical Complex”

Abstract

The history of the development of the Kalmakyr copper-porphyry deposit and the prerequisites for the formation of technogenic dumps of oxidized off-balance ore have been examined. It has been shown that long-term open-pit development of the deposit was accompanied by the selective storage of raw materials that did not meet the requirements of current flotation technology. Using dumps No 9 and No 39, the resource potential of accumulated ores containing copper, gold, and silver is characterized. The mineralogical and technological characteristics of oxidized raw materials, which limit the direct application of traditional sulfide flotation, have been analyzed. Promising development directions have been substantiated: geological and technological mapping of dumps, separate preparation of technological types, sulfuric acid bulk and tank leaching, combined schemes for extracting copper and noble metals, solution circulation, and digital process control. Laboratory experiments show that 75–80% of copper can be extracted during tank leaching, but industrial implementation requires enlarged testing, a closed material balance, and a technical-economic comparison of the variants.

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Article Details

Issue

Vol. 4 No. 3 (2026)

Section

Mining, Metallurgy, and Manufacturing Industry
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Author Biographies

Askarov, A.M., Ministry of Mining Industry and Geology of the Republic of Uzbekistan

Head of the Department for International Cooperation, Coordination of Investment Projects and Localization, Ministry of Mining Industry and Geology of the Republic of Uzbekistan, Almalyk, Uzbekistan

Larionov, S.V., JSC “Almalyk Mining and Metallurgical Complex”

Chief Engineer, JSC “Almalyk Mining and Metallurgical Complex”, Almalyk, Uzbekistan

How to Cite

Askarov, A. M., & Larionov, S. V. (2026). HISTORY OF FORMATION AND PROSPECTS FOR PROCESSING OXIDIZED OFF-BALANCE ORE OF THE KALMAKYR DEPOSIT. Digital Technologies in Industry, 4(3), 182-188. https://doi.org/10.70769/3030-3214.SRT.4.3.2026.32

References

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