Abstract
The flotation conditions for coal with different mineral content of the organic component are studied in the laboratory. The reagent protocol developed, which includes Sinterol modifier, is industrially tested. The results indicate that, if Sinterol is added at a rate of (1.0–3.0) ×10–3 kg/t of coal fines, the extraction of the coal’s combustible mass in the concentrate is increased; the process is more selective; and the loss of combustible mass with the flotation waste is decreased. The greater effectiveness of flotation when using Sinterol may be explained in that the modifier is adsorbed on the active sections of the coal surface, on account of hydrogen bonds with polar groups in the Sinterol, so that its hydrocarbon groups face the aqueous phase. As a result, the coal surface becomes more hydrophobic and flotation is improved. The increased selectivity in flotation is associated with effective flocculation of the clay particles in the presence of Sinterol, especially for coal with high content of clay minerals. Industrial tests confirm that Sinterol permits more effective and selective coal flotation.
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REFERENCES
Abramov, A.A., Principles of physico-chemical optimization of mineral flotation, Proc. XX International Mineral Processing Congr., Aachen, September 21–26,1997, Clausthal-Zellerfeld, 1997, vol. 3, pp. 3–28.
Ryaboy, V.L., Zhivankob, G.V., Shenderovitch, V.A., et al., Improvement of diamond recovery in froth separation of kimberlite ore with the help of flotation reagents, Proc. XX Int. Mineral Processing Congr., Aachen, 1997, vol. 3, pp. 437–445.
Solozhenkin, P.M., Solozhenkin, O.I., and Krausz, S., Study of sulphydricflotation reagents isomery, Ann. Univ. Petrosani Min. Eng., 2011, vol. 12, pp. 65-73.
Ryaboy, V., Shepeta, E., Kretov, V., and Golirov, V., New dialkyldithiophosphates for the flotation of copper, gold and silver containing ores, Proc. XXVII International Mineral Processing Congr. (IMPC 2014), Santiago, 2014, ch. 3, pp. 1–8.
Lotter, N.O. and Bradshow, D.J., The formulation and use of mixed collectors in sulphide flotation, Miner. Eng., 2010, vol. 23, nos. 11–13, pp. 945–951.
Karimian, A., Rezaei, B., and Mazoumi, A., The effect of mixed collectors in the rougher flotation of Sungun copper, Life Sci. J., 2013, no. 10, pp. 268–272.
Finch, J.A. and Smith, G.W., Dynamic surface tension of alkaline dodecylamine solutions, J. Colloid Interface Sci., 1973, vol. 45, no. 1, pp. 81–91.
Kubak, D.A., Petukhov, V.N., Voloshchuk, T.G., Svechnikova, N.Yu., Searching for effective coal-flotation agents by quantum-chemical modeling, Coke Chem., 2018, vol. 61, no. 6, pp. 220-229.
Chanturiya, V., Lavrinenko, A., Petukhov, V., Sirchenko, A., and Svechnikova, N., New collector and modifier selection for the flotation of different coal grades, Proc. Int. Coal Preparation Congr.,2010, Englewood, CO: Soc. Min., Metall., Explor., 2010, pp. 421–431.
Petukhov, V.N., Svechnikova, N.Yu., and Lavrinenko, A.A., Structure and flotational properties of vinyldiene hydrocarbons and their reaction with the coal surface, Coke Chem., 2009, vol. 52, no. 10, pp. 450–453.
Khan, G.A., Gabrielova, L.I., and Vlasova, N.S., Flotatsionnye reagenty i ikh primenenie (Flotation Reagents and Their Use), Moscow: Nedra, 1986.
Lavrinenko, A.A. and Sirchenko, A.S., The use of high molecular weight copolymers as modifiers in the coal flotation at various stages of metamorphism, Gorn. Inf.-Anal. Byull., 2009, vol. 1, no. 14, pp. 249–262.
Rybov, Yu.V., Delitsyn, L.M., Ezhova, N.N., and Lavrinenko, A.A., The efficiency of reagent modifier PAV-2 in the flotation of underburning from the flying ash of thermal power plants, Obogashch. Rud, 2018, no. 1, pp. 43–49.
Sirchenko, A.S., Development of reagent modes of flotation of coal small particles based on the use of water-soluble copolymers, Cand. Sci. (Eng.) Dissertation, Moscow, 2007.
Subbotin, V.V. and Petukhov, V.N., The effect of flocculants on coal sludge enrichment, Vestn. Magnitogorsk. Gos. Tekh. Univ. im. G.I. Nosova, 2014, no. 2 (46), pp. 20–24.
Petukhov, V.N., Osnovy teorii i praktika primeneniya flotatsionnykh reagentov pri obogashchenii uglei dlya koksovaniya (Use of Flotation Reagents for Coal Preparation for Coking: Theory and Practice), Magnitogorsk: Magnitogorsk. Gos. Tekh. Univ. im. G.I. Nosova, 2016.
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Petukhov, V.N., Smirnov, A.N., Svechnikova, N.Y. et al. Tests of Sinterol Reagent in Flotation at OOO MMK-Ugol. Coke Chem. 63, 126–131 (2020). https://doi.org/10.3103/S1068364X20030084
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DOI: https://doi.org/10.3103/S1068364X20030084