Abstract
—Using UV-visible spectrophotometry, it is found that old tailings of Solnechny Mining and Processing Plant are characterized with high absorptive capacity relative to sodium dibutyl dithiocarbamate (DBDTC) and require high consumption of collecting agents in flotation. The optical and scanning electron microscopy tools revealed gypsum-cemented finely dispersed fractions (smaller than 20 μm) coating larger mineral particles (60–80 μm). Minerals are represented by chalcopyrite, pyrrhotine, pyrite, sphalerite, jamesonite and cassiterite; rocks are quartz and silicates. A feature of these old tailings is supergene mineralization and sulphide oxidation products. Alongside with cassiterite, varlamovite is present as a typical product of stannite-group tin sulfosalts modification. New experimental data on flotation of Solnechny MPP tailings with DBDTC are obtained. The flotation experiments show that DBDTC addition to butyl xanthate (at ratio of 1: 3) enables increased recovery of copper, lead, zinc and silver in bulk concentrate and reduces loss of these minerals in slime.
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Acknowledgments
The authors highly appreciate the contribution of Cand. Geol.-Min. Sci. E.V. Korporulina and P.M. Kartashov in optic and SEM examination. The work was supported by the Russian Science Foundation, project no. 17-17-01292.
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Original Russian Text © T.N. Matveeva, V.A. Chanturia, N.K. Gromova, L.B. Lantsova, 2018, published in Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, 2018, No. 6, pp. 150–160.
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Matveeva, T.N., Chanturia, V.A., Gromova, N.K. et al. Effect of Chemical and Phase Compositions on Absorption and Flotation Properties of Tin–Sulphide Ore Tailings with Dibutyl Dithiocarbamate. J Min Sci 54, 1014–1023 (2018). https://doi.org/10.1134/S1062739118065179
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DOI: https://doi.org/10.1134/S1062739118065179