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ArticleName Technological properties of pyrrhotine of massive non-ferrous metal ores
DOI 10.17580/tsm.2015.08.03
ArticleAuthor Bocharov V. A., Ignatkina V. A.
ArticleAuthorData

Mining Institute of National University of Science and Technology “MISiS”, Moscow, Russia:

V. A. Bocharov, Professor, Chair of Concentration and Processing of Minerals and Anthropogenic Raw Materials
V. A. Ignatkina, Professor, Chair of Concentration and Processing of Minerals and Anthropogenic Raw Materials

E-mail (common): woda@mail.ru

Abstract

This article gives the analytical data for research of technological properties of pyrrhotine during flotation of pyrrhotine-containing non-ferrous metal ores. Pyrrhotine, containing in massive pyrite copper-zinc ores, considerably differs from one, containing in copper-nickel ores. Optimal modes of selective depression of pyrrhotine and pyrite during flotation of pyrite copper-zinc ores of Ural region are defined, providing the decreasing of pyrrhotine and pyrite flotability during ore flotation and selection of copperzinc concentrate. The developed technological mode, combining aeration and the found selective collector ratio, make possible the considerable decreasing of iron sulfide flotability, improvement of concentrate quality and selective extraction of copper and zinc. Aeration before copper flotation in the beginning of ore cycle allows to increase the copper content in “copper head” concentrate. The developed mode changes the kinetics of flotability of chalcopyrite, pyrrhotine and pyrite in bulk copper-zinc and selective flotation, which provides the increasing of contrast and flotation activity of separated minerals.
Research was carried out with the support of Russian Scientific fund (project № 14-17-00393).

keywords Pyrrhotine, pyrite, flotation, collectors, complex processing, flotation activity, physical-chemical properties, technological properties, pyrrhotine modifications, oxidation, component, separation
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