Abstract
The paper presents an analysis of the current state of mineral processing of copper, copper-zinc, zinc-lead and copper-lead-zinc-pyrite ores. The most significant problem for selective flotation is posed by the domination of iron sulphides over non-ferrous metal sulphides in various ores. In many types of ore, pyrite content reaches 90%; in some ores, pyrrhotite content prevails over pyrite by twofold and comprises 50–60%. The content of copper fluctuates over a wide range from 0.7% to 3% with zinc content ranging from 0.7% to 3.5% or more. The bulk of copper in ores is represented by chalcopyrite. In some sulphide ores, the content of secondary copper sulphides is increased by 30%, whereas the content of tennantite and tetrahedrite reaches 25% of the total copper mass. Using the aeration and weak sulphhydryl collectors’ relative of pyrite, pyrrhotite and inactive sphalerite such as the M-TF in combination with butyl xanthate improves the selectivity of flotation. The technology for complex ore processing was developed to produce rich flotation concentrates and poor polymineral products for hydrometallurgy. The correlation between the basic properties of minerals and the technological schemes, regimes and processing indicators of non-ferrous metals has been identified.
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Bocharov, V., Ignatkina, V., Kayumov, A., Viduetsky, M., Maltsev, V. (2018). Complex Processing of Refractory Pyrite Copper, Copper-Zinc and Polymetallic Ores on the Basis of Flotation and Combined Technologies. In: Brebbia, C., Connor, J. (eds) Progress in Materials Science and Engineering. Innovation and Discovery in Russian Science and Engineering. Springer, Cham. https://doi.org/10.1007/978-3-319-75340-9_12
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DOI: https://doi.org/10.1007/978-3-319-75340-9_12
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