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Development of an Approach to the Extraction of Non-ferrous Metals from Mature Copper-nickel Tailings by Heap Leaching Method
https://doi.org/10.18412/1816-0395-2025-9-4-11
Abstract
The engineering and geological properties of the surface layer of the tailing dump, mineral and chemical composition of tailings were studied, the probability of nickel ions migration to the adjacent water bodies was shown, the scheme of tailings processing by means of preliminary granulation and subsequent leaching using water, sulfuric acid solution and bacterial solution was proposed. It is confirmed that the application of 10% sulfuric acid solution as a binder using nitrite ion as an oxidizing agent allows to recover more than 50 % of nickel and 47.8 % of copper at the heap leaching stage. It is shown that 11.6 % of nickel and 13.5 % of copper are recovered by bioleaching of tailings pellets prestrengthened with polymer binder.
About the Authors
A.A. Goryachev
Institute for Problems of Industrial Ecology of the North – Kola Research Center of the Russian Academy of Sciences
Russian Federation
Russian Federation
Cand. Sci. (Eng.), Research Associate
E.S. Latyuk
Institute for Problems of Industrial Ecology of the North – Kola Research Center of the Russian Academy of Sciences
Russian Federation
Russian Federation
Junior Research Fellow
A.A. Kompanchenko
Geological Institute – Separate Subdivision of the Federal State Budgetary Institution of the Science
Federal Research Center "Kola Science Center of the Russian Academy of Sciences"
Russian Federation
Russian Federation
Cand. Sci. (Geol.-Mineral.), Research Associate
L.P. Kudryavtseva
Institute for Problems of Industrial Ecology of the North – Kola Research Center of the Russian Academy of Sciences
Russian Federation
Russian Federation
Cand. Sci. (Geography), Research Associate
E.A. Odintsova
St. Petersburg State University
Russian Federation
Russian Federation
Master’s Student
D.V. Makarov
Institute for Problems of Industrial Ecology of the North – Kola Research Center of the Russian Academy of Sciences
Russian Federation
Russian Federation
Dr. Sci. (Eng.), Director
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Review
For citations:
Goryachev A., Latyuk E., Kompanchenko A., Kudryavtseva L., Odintsova E., Makarov D. Development of an Approach to the Extraction of Non-ferrous Metals from Mature Copper-nickel Tailings by Heap Leaching Method. Ecology and Industry of Russia. 2025;29(9):4-11. (In Russ.) https://doi.org/10.18412/1816-0395-2025-9-4-11
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