Increasing Flotation Efficiency of Rebellious Copper-Nickel Sulphide Ore in the Pechenga Field
E. V. Chernousenko, Yu. N. Neradovsky, Yu. S. Kameneva, I. N. Vishnyakova, G. V. Mitrofanova
Mining Institute, Kola Science Center, Russian Academy of Sciences, Apatity, 184209 Russia
Keywords: медно-никелевые руды, раскрытие минералов, режим рудоподготовки, флотация, Copper-nickel ore, mineral dissociation, pre-treatment mode, flotation
Abstract
Results of research into low-grade rebellious copper-nickel ore are presented. The mineralogical analysis reveals features of material composition, which affect processing properties of the ore-fine primary dissemination, essential serpentinization and substitution of insets by magnetite, as well as considerable fine difficult-to-dissociate epigenetic impregnation. The main causes of insufficient nickel recovery in the accepted modes of processing are determined. With a view to increasing concentration efficiency of this ore, different modes of milling and flotation are considered. Ways of improving processing performance of this type ore are identified.
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