Soviet Mining

, Volume 21, Issue 6, pp 554–557 | Cite as

Effect of mechanical activation on depression of quartz in flotation

  • T. S. Yusupov
  • S. M. Koroleva
Physical and Chemical Bases of Enrichment


  1. 1.

    The process of mechanical activation of quartz in a mill under conditions of self-abrasion has been studied. The physicochemical properties of the active surface formed in this process have been studied by ESR technique involving determination of the number of paramagnetic centers and by calorimetric technique involving determination of heats of wetting. These techniques show that the referred parameters are affected greatly by the conditions of mechanical and chemical treatment.

  2. 2.

    It has been shown that generation of surface defects upon mechanical impacts is an additional factor of depression of quartz flotability under the action of hydrofluoric acid, which makes it possible to reduce the consumption of the latter drastically.


It must be stated in conclusion that this work was done on “pure” quartz as a mineralogical study with no regard for the action of the unavoidable ions of a real pulp, especially of a mill material triturated upon mechanical treatment, which often greatly affects the flotation properties of minerals.


Mechanical Activation Electric Double Layer Hydrofluoric Acid Relative Electric Conductivity Fluorine Compound 
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Literature Cited

  1. 1.
    L. K. Sutherland and J. W. Wark, Principles of Flotation, Australian Institute of Mining and Metallurgy (1955).Google Scholar
  2. 2.
    O. S. Bogdanov, A. K. Podnek, V. Ya. Khainman, and N. A. Yanis, “Theory and technolgoy of flotation,” Tr. Mekhanobra, No. 124, Leningrad (1959).Google Scholar
  3. 3.
    V. I. Revnivtsev, Concentration of Feldspars and Quartz [in Russian], Nedra, Moscow (1970).Google Scholar
  4. 4.
    N. A. Yanis and R. I. Gorelik, “Action of hydrofluoric acid in feldspar and quartz flotation,” in: Concentration of Ores of Nonferrous and Ferrous Metals [in Russian], Mekhanobr, Leningrad (1973).Google Scholar
  5. 5.
    V. V. Klyanin, “Mechanism of flotation of feldspars from quartz,” Izv. Vyssh. Uchebn. Zaved., Tsvet. Metall., No. 2 (1980).Google Scholar
  6. 6.
    V. K. Zadorozhnyi and Ya. M. Yakubovskii, “Concentration of feldspathic ores,” in: Production and Use of Feldspathic Raw Materials. Apatites [in Russian], Nauka (1980).Google Scholar
  7. 7.
    G. S. Khodakov, Physics of Grinding [in Russian], Nauka, Moscow (1972).Google Scholar
  8. 8.
    V. A. Radtsig and A. V. Bystrikov, “ESR study of chemically active centers on the surface of quartz,” Kinet. Katal.,19, No. 3, 713 (1978).Google Scholar
  9. 9.
    G. Hochstresser and J. Antonini, “Surface states of pristine silica surfaces. I. ESR studies of Es′ dangling bonds and of CO2 absorbed radicals,” Surf. Sci.,32, No. 3, 644 (1972).CrossRefGoogle Scholar
  10. 10.
    T. S. Yusupov, M. Ya. Shcherbakova, and S. M. Koroleva, “Effect of intensity of grinding on some physicochemical properties of quartz,” Obogashchenie Rud, No. 5 (1977).Google Scholar

Copyright information

© Plenum Publishing Corporation 1986

Authors and Affiliations

  • T. S. Yusupov
  • S. M. Koroleva

There are no affiliations available

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