Leaching SiO2 and Al2O3 Impurities from Leucoxene from the Yaregskoe Deposit by Sodium Hydroxide Solution

  • K. L. ZanaveskinEmail author
  • A. N. Maslennikov
  • S. M. Zanaveskina
  • G. S. Dmitriev
  • L. N. Zanaveskin
  • E. D. Politova
  • V. I. Vlasenko


This work presents the results of experimental studies of leaching aluminosilicate and quartz impurities from leucoxene from the Yaregskoe deposit by sodium hydroxide solution by sodium hydroxide solution. According to the data, the type of kinetic equation of SiO2 dissolution is defined, as are the equation parameters, including the orders by the reagents, the preexponential factor, and the activation energy. The activation energy of 77.2 ± 3.9 kJ/mol corresponds to the kinetic region of the reaction behavior.


leucoxene quartz dissolution aluminosilicate leaching titanium-containing raw materials kinetics activation energy 



The work was carried out within the framework of the Federal Target Program for IPS RAS with financial support from the Federal Agency for Scientific Organizations of Russia.


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Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  • K. L. Zanaveskin
    • 1
    • 2
    Email author
  • A. N. Maslennikov
    • 2
  • S. M. Zanaveskina
    • 2
  • G. S. Dmitriev
    • 1
    • 2
  • L. N. Zanaveskin
    • 1
  • E. D. Politova
    • 2
  • V. I. Vlasenko
    • 3
  1. 1.Topchiev Institute of Petrochemical Synthesis, Russian Academy of ScienceMoscowRussia
  2. 2.Karpov Institute of Physical Chemistry (Russian State Scientific Center)MoscowRussia
  3. 3.OAO YaregaRudaUkhtaRussia

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