Abstract
The article describes the studies into sulphide extraction from ore using an integration of flotation and oxidized copper leaching in the conditions of milling with nonacid complexing agent—ammonium sulfate, and adsorption–electrolytic recovery of copper from pregnant highly mineralized copper-bearing solutions. The thermodynamic function of products of interaction between the base copper minerals and the yield of the hydrolysis ammonium sulfate solutions is presented. The mechanism of sulfate ammonium leaching of oxidized copper minerals in joint mechanical–thermal activation treatment is proposed. The tests on treatment of low-grade complex copper-bearing ore from stockpiles by combination of chemical and electrochemical methods and on the mixed-type flotation–hydrometallurgical processing technology of complex copper-bearing ore were carried out.
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Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, 2021, No. 5, pp. 140-149. https://doi.org/10.15372/FTPRPI20210513.
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Gorlova, O.E., Medyanik, N.L., Mishurina, O.A. et al. Mixed-Type Flotation–Hydrometallurgical Processing Technology for Complex Copper-Bearing Ore. J Min Sci 57, 834–841 (2021). https://doi.org/10.1134/S1062739121050136
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DOI: https://doi.org/10.1134/S1062739121050136