ISSN 1062-7391, Journal of Mining Science, 2017, Vol. 53, No. 5, pp. 907–914. © Pleiades Publishing, Ltd., 2017.
Original Russian Text © V.I. Rostovtsev, S.A. Kondrat’ev, I.I. Baksheeva, 2017, published in Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh,
2017, No. 5, pp. 123–130.
__________________________________ MINERAL _________________________________
Improvement of Copper–Nickel Ore Concentration
under Energy Deposition
V. I. Rostovtsev, S. A. Kondrat’ev*, and I. I. Baksheeva
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences,
Novosibirsk, 630091 Russia
Received June 22, 2017
Abstract—The experimental research into intensification of copper–nickel ore concentration by flotation
and magnetic separation shows that pretreatment of ore before milling by accelerated electrons results in the
increased yield of –
0.071 mm size and in enhanced recovery of useful components in the concentrate.
Magnetic separation improves comprehensive utilization of mineral raw materials.
Keywords: Copper–nickel ore, treatment by accelerated electrons, ore pretreatment, flotation, magnetic
The present-day management of mineral resources implies the introduction of rebellious mineral
ore deposits along with anthropogenic mineral waste foundations into the development. This trend
inevitably involves appreciable loss of valuable components at stages of mining and processing of
mineral materials, as well as high operational and capital costs of the final product production.
The pretreatment of mineral materials including grinding and opening of finely-dispersed
mineral aggregates is of prime importance to gain the maximum recovery of metals from rebellious
and waste materials. It is stated in  that disintegration of mineral materials is considered as an
ore-preparation process of constitutive validity. Energy costs of ore preparation are relatively low at
crushing stages (up to 1.2 kW⋅h/t) and rather high at grinding stages (50 kW⋅h/t and higher). In [2–5]
it is demonstrated that employment of energy effects seems promising with a view to cut down
electric energy consumption in pretreatment of rebellious mineral materials, as energy effects
enable to overcome physical rebelliousness and to provide selective disintegration of mineral feed
with no excessive overgrinding.
The Russian Federation is rich in nickel reserves, mainly, sulfide copper-nickel ore deposits. The
essential specific feature of these deposits is complex commercial-grade ores containing copper,
platinoids, cobalt and other valuables along with nickel. Other available deposit types, namely, of
the lateritic type are considered important in foreign countries and ranked as of an inferior type in
It is important to state that the present-day total reserves of deposits under development in the
Russian Federation amount to more than 13% of world commercial nickel reserves. Russia occupies
the forth position after Australia, Brasilia, and New Caledonia. The Russian government registered
56 nickel deposits, 14 of them have outbalance reserves and three man-made (mineral waste) deposits
are under development. More than 75% of reserves occur in sulfide copper-nickel ores of the Norilsk
ore locus in Norilsk–Kharaelakhsky metallogenic zone.