Abstract
The article reports test data on adsorption and flotation characteristics of thermomorphic polymer joined with diphenylphosphine—TMPD. The test materials are natural pyrite and arsenopyrite, and models of gold-bearing sulfide minerals. Electron microscopy and X-ray structure analysis prove that reductive adsorption of gold at the surface of sulfide minerals from HAuCl4 solution allows modeling natural aggregates of sulfides and finely dispersed gold. UV spectrophotometry proves selective adsorption of TMPD at gold. Laser scanning microscopy shows connection of TMPD with micro- and nano-size gold on polished sections of pyrite and arsenopyrite. During monomineral flotation, joint use of TMPD and butyl xanthate at a ratio of 1:1 doubles the yield of gold-bearing sulfides and enables maximum recovery of gold minerals at the total consumption of reagents reduced by 30–50%. It is found that TMPD is selective relative to gold-bearing minerals and its combination with xanthate ensures a considerable increment in gold-bearing mineral recovery by flotation.
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References
Bocharov, V.A., Ignatkina, V.A., and Abryutin, D.V., Tekhnologiya pererabotki zolotosoderzhashchego cyr’ya (Processing of Gold-Bearing Materials), Moscow: MISiS, 2011.
Kotlyar, Yu.A., Meretukov, M.A., and Strizhko, L.S., Metallurgiya blagorodnykh metallov (Precious Metal Metallurgy), Textbook, vol. 1, Moscow: Ruda Metally, 2005.
Matveeva, T.N., Nedosekina, T.V., and Ivanova, T.A., Theoretical Issues of Selective Flotation of Gold-Bearing Sulfides, Gorny Zh., 2005, no. 4, pp. 56–59.
Getman, V.V. and Gapchich, A.O., Investigation into Interaction of Diisobutyldithiophosphinate (DIPh) with Sulfide Surface Containing Emulsion Gold Dissemination, Obogashch. Rud, 2013, no. 6, pp. 18–21.
Chanturia, V.A., Nedosekina, T.V., Getman, V.V., and Gapchich, A.O., New Agents to Recover Noble Metals from Rebellious Ores and Other Materials, J. Min. Sci., 2010, vol. 46, no. 1, pp. 66–71.
Getman, V.V., Selective Concentration of Platinoids from Copper-Nickel Ores by Complexing Thermomorphic Agents and Modified Thermomorphic Polymers, Theses of Cand. Tech. Sci., Moscow, 2010.
Chanturia, V.A. and Getman, V.V., Experimental Investigation of Interaction of Modified Thermomorphic Polymers, Gold and Platinum in Dressing of Rebellious Precious Metal Ore, J. Min. Sci., 2015, vol. 51, no. 3, pp. 580–585.
Chanturia V.A., Matveeva T.N., Ivanova T.A., and Getman V.V., Mechanism of Interaction of Cloud Point Polymers with Platinum and Gold in Flotation of Finely Disseminated Precious Metal Ores, Min. Proc. Extract. Metallurgy Rev., 2016, vol. 37, no. 3, pp. 187–195.
Zimbovsky, I.G. and Gapchich, A.O., Investigation into Modified Thermomorphic Polymers as Selective Collectors in Flotation of Rebellious Gold-Bearing Materials, GIAB, 2016, no. 6, pp. 161–170.
Gapchich, A.O., Experimental Substantiation of Dithiophosphinate-and Dithiazine-Class Agents Application to Float Gold Ores, Thesis of Candid. Tech. Sci., Moscow, 2015.
Tauson, V.L., Ovchinnikova, O.I., Bessarabova, O.I., et al., Distribution of Gold Precipitated in Reducing Adsorption from HAuCl4 Solution to Magnetite, Sphalerite, and Galena Crystals, Geolog Geophys., 2000, vol. 14, no. 10, pp. 1480–1483.
Meretukov, M.A., Natural Gold Nano-Particles, Tsv. Met., 2006, no. 2, pp. 36–41.
Bancroft, G.M. and Jean, G., Gold Deposition at Low Temperature on Sulphide Minerals, Nature, 1982, vol. 298, no. 5876, pp. 730–731.
Chanturia, V.A., Ivanova, T.A., and Kaparulina, E.V., Procedure to Estimate Efficiency of Flotation Agent Reactivity with Gold-Bearing Pyrite, Tsv. Met., 2010, no. 8, pp. 16–19.
Bergbreiter, D.E., Case, B.L., Liu, Yun-Shan, and Caraway, J.W., Poly (N-isopropylacrylamide) Soluble Polymer Supports in Catalysis and Synthesis, Macromolecules, 1998, vol. 31, no. 18, pp. 6053–6062.
Hyakutake, T., Navrotskiy, A.V., Morita, K., Kato, J., Sakaue, H., Novakov, I.A., and Nishide, H., Poly (N-isopropylacrylamide) Grafting on Aluminium to Actively Switch its Surface Drag in Water, Polymer International, 2010, vol. 59, issue 10, pp. 1436–1440.
Di, Lena F. and Matyjaszewski, K., Transition Metal Catalysts for Controlled Radical Polymerization, Progr. Polym. Sci., 2010, vol. 35, issue 8, pp. 959–1021.
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Original Russian Text © N.N. Matveeva, V.A. Chanturia, A.O. Gapchich, 2017, published in Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, 2017, No. 3, pp. 131–140.
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Matveeva, N.N., Chanturia, V.A. & Gapchich, A.O. Finely Dispersed Micro- and Nano-Gold Recovery Using Thermomorphic Polymer with Diphenylphosphine. J Min Sci 53, 544–552 (2017). https://doi.org/10.1134/S1062739117032488
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DOI: https://doi.org/10.1134/S1062739117032488