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Bioleaching of sulfide minerals has been successfully applied worldwide for obtaining copper for decades. This technology provides about 5% of world copper production and is used as an alternative for pyrometallurgical processing of copper ores. Despite widespread of biohydrometallurgical technologies, there are a number of issues in this area, which impede the development and commercialization of bioleaching. For example, chalcopyrite (CuFeS2), the most abundant copper sulfide mineral, is refractory to biooxidati...

A large number of precious metals such as molybdenum, gold, uranium and much more are obtained from sulfide ores. Currently, a large number of hydrometallurgical methods are used to extract precious metals, which in turn are outdated in this field. In this regard, it is necessary to develop new modern methods for extracting all valuable components from sulfide ores. One of these methods is the process of bio-leaching with the use of microorganisms. The use of this method in mining companies will help reduce the ri...

The paper considers the formation and development of modern ideas in the field of mathematical modeling of the interaction of ferromagnetic particles and external magnetic fields in mineral processing. The implementation of such studies is dictated by the need to identify methods for the analytical representation of the physical laws of the aggregation of ferromagnetic particles, which are a basis for the various technological equipment used in the iron ores processing. The identification is aimed at the use of in...

This work studied the problem of the joint use of Gauss - Laplace and B (beta) distributions to describe the disintegration of minerals of polymineral ores, which is associated with the liberation of mineral grains - the release of monomineral particles from intergrowths with other minerals. The basic position of the work is the dependence of the result of reducing the size of mineral particles on the energy expended on this process, postulated in the mineral processing theory. This dependence was taken into accou...

The paper presents the results of mineralogical and technological research of tailings produced during processing of rare-metal columbite ore of the prospective Zashikhinskoe deposit. The grain size analysis of a tailings sample showed that the most part of the material is represented by fine-grained particles with 53.3% yield of size fraction -0.045 mm. Mineral composition of the tailings is mainly represented by quartz, albite and microcline. Total content of minor minerals, such as muscovite, columbite, cryolit...