Mineralogical Features Associated with Material Constitution and Process Properties of Difficult Lead-Zinc Ore
N. F. Usmanova1,2, E. A. Burdakova1,2, I. I. Baksheeva1, A. A. Plotnikova1, V. N. Knyazev1
1Siberian Federal University, Krasnoyarsk, Russia
2Institute of Chemistry and Chemical Technology-Division of Federal Research Center, Krasnoyarsk, Russia
Keywords: Difficult lead-zinc ore, galena, anglesite, cerussite, sphalerite, fine dissimination, optical and electron microscopy, flotation
Abstract
The article describes the studies on the material constitution of two lead-zinc ore samples from the Gorevka deposit. The samples are difficult ore because of fine dissemination of galena and its complex intergrowth with sphalerite; feature partial replacement of lead sulfide by anglesite and cerussite; contain colloform galena. The initial ore samples underwent the X-ray phase, chemical and grain-size analyses, with sizing of target elements. The tests of selective flotation of the samples, with variation of size grade in the lead circuit, in different reagent regimes and with the subsequent electron microscopy of the products proved the processing difficulty of the test ore.
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