The processing of previously unclaimed ores and wastes as sources of non-ferrous metals, with an associated reduction in the environmental burden, is a promising field of research. Besides, many relatively minor non-ferrous metal deposits with complex mining engineering and geological properties exist, whose development by conventional mining methods is not economically feasible. The theoretical possibility of processing the cut-off grade copper-nickel objects of Murmansk Region was shown. Process conditionswere found making the process economically feasible. Processing these mineral feed types will also allow in the long term to improve the environmental situation in the region.
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