Formation of non-ferrous metals thiosalts during sintering of man-made raw materials of copper production
Sokolovskay L. Kvyatkovskiy S. Kozhakhmetov S. Semenova A. Sukurov B. Dyussebekova M. Shakhalov A.
September 2024Elsevier B.V.
Results in Engineering
2024#23
The technology under development for processing slag from the Balkhash copper production obtained by remelting electrolyte sludge. It includes sulphiding sintering, leaching and extraction of metals from solutions and cake. The process of sulphidization of metal oxides during slag sintering was investigated. Sintering was carried out with additives of sodium sulfate and carbon at temperatures of 500–800 °C. The shapes of the metals in the samples were determined using electronic microanalysis. It is shown that at 800 °C, almost all non-ferrous metals in the slag passed into the sulphide form. The advantage of the technology is the rejection of the remelting of this type slag and the primary processing of slag at moderate temperatures.
Man-made raw materials , Metal sulphides , Precious metal slag , Sintering , Thiosalts
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Satbayev University, Institute of Metallurgy and Ore Beneficiation, Almaty, Kazakhstan
Kazakhmys Corporation LLP, Balkhash, Kazakhstan
Satbayev University
Kazakhmys Corporation LLP
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