APPRAISAL OF CAPABILITIES OF NONFERROUS METAL RECOVERY FROM OLD COPPER–NICKEL ORE PROCESSING TAILINGS

The colossal volume of waste in the mineral mining and processing industry create deep ecological and economic problems. Management of existing waste dumps and tailings ponds involves much capital cost and difficulties. Specific environmental threat is imposed by sulphidebearing waste regarded as the most ecologically destructive material. This study addresses usability of flotation and magnetic separation waste for recovery of nonferrous metals in terms of old copper–nickel ore processing tailings sampled at tailings dam of the Kola Mining and Metallurgical Company. The implemented mineralogical and technological research, as well as assessment of dissociation of sulphide minerals determines optimal milling coarseness and flotation modes. Flotation produces concentrate containing 0.39% of nickel and 0.20% at the recovery of 44 and 59%, respectively. The concentration ratio of useful components is 1.8 for nickel and 2.4 for copper. Magnetic separation offers higher recovery of nickel (49–60%) and yields tailings with lower nickel content. It is the most efficient approach to combine magnetic and flotation methods, with application of magnetic separation in the beginning of the process.


For citation:  Chernousenko E. V., Vishnyakova I. N., Kameneva Yu. S., Neradovskiy Yu. N. Appraisal of capabilities of nonferrous metal recovery from old copper–nickel ore processing tailings. MIAB. Mining Inf. Anal. Bull. 2019;(7):196-206. [In Russ]. DOI: 10.25018/0236-1493-2019-07-0-196-206.

Keywords

Tailings, copper–nickel ore, recovery, flotation, magnetic separation.

Issue number: 7
Year: 2019
ISBN: 0236-1493
UDK: 622.765.061
DOI: 10.25018/0236-1493-2019-07-0-196-206
Authors: Chernousenko E. V., Vishnyakova I. N., Kameneva Yu. S., Neradovskiy Yu. N.

About authors: E.V. Chernousenko (1), Researcher, e-mail: chern@goi.kolasc.net.ru, I.N. Vishnyakova (1), Junior Researcher, Yu.S. Kameneva (1), Junior Researcher, Yu.N. Neradovskiy (1), Cand. Sci. (Geol. Mineral.), Leading Researcher, Geological Institute of Kola Scientific Centre of Russian Academy of Sciences, 184209, Apatity, Murmansk region, Russia, 1) Mining Institute, Kola Scientific Centre of Russian Academy of Sciences, 184209, Apatity, Murmansk region, Russia. Corresponding author: E.V. Chernousenko, e-mail: chern@goi.kolasc.net.ru.

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