Journal of Mining Science

, Volume 52, Issue 5, pp 989–997 | Cite as

Effects of surface structure changes on reactivity of scheelite after mechanical activation

Mineral Dressing


The article illustrates feasibility to predict changes in energy content and reactivity of scheelite concentrate after mechanical activation based on X-ray diffraction analysis data under onward low-temperature (under 100°С) sodium leaching. The complex nature of changes in the energy content and reactivity of mechanically activated scheelite under influence of structural changes in mineral particles is determined. It is confirmed that energy accumulated in the form of surface energy and micro-deformations during mechanical activation affects further leaching performance. The procedure and criteria developed to estimate efficiency of mechanical activation of scheelite make a technical background for energy-saving technology of scheelite concentrate treatment directly at mining and processing plants.


Wolfram scheelite concentrate preliminary mechanical activation sodium leaching X-ray diffraction analysis energy saving 


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  1. 1.
    Strategy of Metallurgical Industry Development in Russia for the Period up to 2020. URL: (Reference date: June 23, 2014).Google Scholar
  2. 2.
    Zelikman, A.N., Metallurgiya tugoplavkikh redkikh metallov (Metallurgy of Refractory Rare Metals), Moscow: Metallurgiya, 1986.Google Scholar
  3. 3.
    Medvedev, A.S., Vyshchelachivanie i sposoby ego intensifikatsii (Leaching and its Intensification Techniques), Moscow: MISiS, 2005.Google Scholar
  4. 4.
    Van Buren, H.G., Imperfections in Crystals, New York: Interscience Publishers, 1960.Google Scholar
  5. 5.
    Rid V.T., Dislokatsiya v kristallakh (Dislocation in Crystals), Moscow: Metallurgizdat, 1957.Google Scholar
  6. 6.
    Kitel, Ch., Vvedenie v fiziku tverdogo tela (Introduction to Solid State Physics), Moscow: Nauka, 1978.Google Scholar
  7. 7.
    Novikov, I.I., Defekty kristallicheskogo stroeniya metallov (Defects in Crystalline Structure of Metals), Moscow: Metallurgiya, 1983.Google Scholar
  8. 8.
    Poluboyarov, V.A., Pauli, I.A., Boldyrev, V.V., and Tarantseva, M.I, Evaluating Performance of Chemical Reactor for Mechanical Activation of Solid Phase Interaction, Report 1, Khim. Int. Ust. Razv. 1994, issue 2, pp. 635–645.Google Scholar
  9. 9.
    Bogatyreva, E.V. and Ermilov, A.G., Specific Features of Mechanical Activation of Rare Metal Concentrate Phases, Proc. Int. Sci. Conf. New Materials and Techniques for Comprehensive Mineral Processing as the Basis of Innovative Economic Development of Russia, Moscow: Vseros. Nauch.-Issled Inst. Aviats. Mater., 2012.Google Scholar
  10. 10.
    Bogatyreva, E.V., Ermilov, A.G., and Podshibyakina, K.V, Investigation Influence of Structure Parameters Variation on Wolframite Reactivity during Mechanical Activation, Proc. 3rd Int. Conf. Fundamental Bases of Mechanochemical Technologies, Novosibirsk, 2009.Google Scholar
  11. 11.
    Ermilov, A.G., Safonov, V.V., Doroshko, L.F., et al., X-Ray Diffraction Evaluation of Energy Increment Generated in Preliminary Mechanical Activation, Izv. vuzov, Tsv. Metal., 2002, no. 3, pp. 48–53.Google Scholar
  12. 12.
    Shelekhov, E.V. and Sviridova, T.A., X-Ray Polycrystal Analysis Softwares, MiTOM, 2000, no. 8.Google Scholar
  13. 13.
    Zuev, V.V., Aksenova, G.A., Mochalov, N.A., et al., Investigation into Specific Energy of Crystalline Lattices of Minerals and Inorganic Crystals with a View to Assessing Their Properties, Obogashch. Rud., 1999, nos. 1, 2, pp. 48–53.Google Scholar
  14. 14.
    Vol’dman, G.M. and Zelikman, A.N., Teoriya gidrometallurgicheskikh protsessov (Theory of Hydrometallurgical Processes), Moscow: Metallurgiya, 1993.Google Scholar
  15. 15.
    Bogatyreva, E.V. and Ermilov, A.G., X-Ray Diffraction Prediction of Preliminary Mechanical Activation Efficiency for Scheelite Concentrate, Tsv. Met., 2013, no. 3, pp. 60–64.Google Scholar
  16. 16.
    Bogatyreva, E.V., Ermilov, A.G., RF patent no. 2496896, Byull. Izobret., 2013, no. 30.Google Scholar

Copyright information

© Pleiades Publishing, Ltd. 2016

Authors and Affiliations

  1. 1.National Research University of Science and Technology—MISISMoscowRussia

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