Application of New Composition of Reagents in Flotation of Silver-Bearing Tin Ore
T. N. MATVEEVA, V. A. CHANTURIA, A. O. GAPCHICH, V. V. GETMAN
Academician Melnikov Institute of Integrated Mineral Resources Development, Kryukovskii tupik 4, Moscow, 111020 Russia
Keywords: серебросодержащие оловянные руды, флокуляция, флотация, триамид циануровой кислоты ТЦК, термоморфный полимер ТМПФ, silver-bearing tin ore, flocculation, flotation, cyanuric triamide (CTA), thermally degraded polymer (TDP)
Abstract
Using ultraviolet-visible spectrophotometry and laser and electron microscopy, adsorption of cyanuric triamide agent (CTA) at the surface of silver-rich galena PbS-Ag and pyrite FeS2-Ag is recorded. The X-ray spectrum of the new reagent phase on silver particles contains O, C and N bands typical of CTA. New experimental data on kinetics of selective flocculation of ultrafine particles of silver-bearing sulphide minerals under treatment by CTA and thermally degraded polymers (TDP) are obtained. It is found that CTA and TDP introduced jointly in sulphide slime pulp accelerate settling of slime fractions, which promotes mineral aggregation and improves flotation performance. The prospects of using CTA and TDP as modifiers in flocculation of slime fractions of silver-bearing minerals are demonstrated.
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