Coke and Chemistry

, Volume 61, Issue 9, pp 319–323 | Cite as

Flotational Enrichment of Low-Quality and Oxidized Coal Using Spent Motor Oil

  • Yu. F. PatrakovEmail author
  • S. A. SemenovaEmail author
  • M. S. KleinEmail author
  • B. AvidEmail author


The flotation of low-quality Russian and Mongolian coal by means of spent motor oil is investigated. Ozonization is used to improve the flotational properties of the spent oil. The optimal ozonization depth of oil used to enrich coal of poor metamorphic development is 5–6 g/kg. Ozonization increases the oil’s content of oxygen-bearing heteropolar compounds, which determine its flotation properties. In addition, the viscosity declines. The use of ozonized spent oil improves the flotation of gas coal by 24%. Flotation of naturally oxidized gas coal by spent oil, before and after ozonization, is poor and requires large quantities of reagents.


coal oxidized coal functional groups flotation spent motor oil ozonization 



We thank O. S. Efimova, R. P. Kolmykov, V. Yu. Malysheva, N.A. Grabova, and Yu.A. Kharlampenkova (Federal Research Center of Coal and Coal Chemistry) and N.S. Grushina (the Gorbachev University) for assistance in the experiments and the physicochemical analysis.


  1. 1.
    Dey, S., Enhancement in hydrophobicity of low rank coal by surfactants—a critical overview, Fuel Process. Technol., 2012, vol. 94, pp. 151–158.CrossRefGoogle Scholar
  2. 2.
    Chuprova, L.V., Mullina, E.R., and Mishurina, O.A., The influence of organic and inorganic compounds on the flotation of low metamorphic coal, Sovrem. Probl. Nauki Obraz., 2013, no. 4, pp. 24–32. Scholar
  3. 3.
    Xing, Y., Gui, X., Cao, Y. et al. Effect of compound collector and blending frother on froth stability and flotation performance of oxidized coal, Powder Technol., 2017, vol. 305, pp. 166–173.CrossRefGoogle Scholar
  4. 4.
    Klassen, V.I., Flotatsiya uglei (Coal Floatation), Moscow: Gosgortekhizdat, 1963.Google Scholar
  5. 5.
    Petukhov, V.N. and Bychkova, A.V., Development reagent conditions of coal flotation using reagents-collectors of different chemical composition, Teor. Tekhnol. Metall. Proizvod., 2015, no. 1, pp. 16–19.Google Scholar
  6. 6.
    Gmyzina, N.V. and Gmyzin, V.A., Analysis of coal floatability using organic compounds and petrochemical products as reagents, Vestn. Magnitogorsk. Gos. Tekh. Univ. im. G.I. Nosova, 2007, no. 3, pp. 25–28.Google Scholar
  7. 7.
    Tyurnikova, V.I. and Naumov, M.E., Povyshenie effektivnosti flotatsii (Efficiency Improvement of Flotation), Moscow: Nedra, 1980.Google Scholar
  8. 8.
    Patrakov, Yu.F., Semenova, S.A., Klein, M.S., and Vahonina, T.E., Coal flotation by ozonized spent motor oil, Coke Chem., 2017, vol. 60, no. 4, pp. 154–157.CrossRefGoogle Scholar
  9. 9.
    Patrakov, Yu.F., Semenova, S.A., and Klein, M.S., Flotational enrichment of coking coal by means of spent motor oil, Coke Chem., 2017, vol. 60, no. 12, pp. 485–488.CrossRefGoogle Scholar
  10. 10.
    Miroshnichenko, D.V. and Ulanovskii, M.L., Reactivity of coke: methods of measuring and influence factors, Koks Khim., 2004, no. 5, pp. 21–31.Google Scholar
  11. 11.
    Atlas verkhnepaleozoiskikh uglei Kuznetskogo basseina (Atlas of the Upper Paleozoic Coals of the Kuznetsk Basin), Zvonarev, I.N., Ed., Novosibirsk: Nauka, 1966.Google Scholar
  12. 12.
    Artser, A.S. and Protasov, S.I., Ugli Kuzbassa: proiskhozhdenie, kachestva, ispol’zovanie (Coal of Kuzbass: Origin, Quality, and Use), Kemerovo: Kuzbasskii Gos. Tekh. Univ., 1999, vol. 1.Google Scholar
  13. 13.
    Dergunov, A.B., Luvsandanzan, B., and Pavlenko, V.S., Geologiya Zapadnoi Mongolii (Geology of Western Mongolia), Moscow: Nauka, 1980.Google Scholar
  14. 14.
    Jia, R., Harris, G.H., and Fuerstenau, D.W., An improved class of universal collectors for the flotation of oxidized and/or low-rank coal, Int. J. Miner. Process., 2000, vol. 58, pp. 99–118.CrossRefGoogle Scholar
  15. 15.
    Murko, V.I., Fedyaev, V.I., Dzyuba, D.A., Zaostrovskii, A.N., Papina, T.A., and Klein, M.S., RF Patent 2268289, 2004.Google Scholar

Copyright information

© Allerton Press, Inc. 2018

Authors and Affiliations

  1. 1.Federal Research Center of Coal and Coal Chemistry, Coal Institute, Siberian Branch, Russian Academy of SciencesKemerovoRussia
  2. 2.Gorbachev Kuznetsk Basin State Technical UniversityKemerovoRussia
  3. 3.Mongolian Academy of SciencesUlaanbaatarMongolia

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