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Journal of Mining Science

, Volume 54, Issue 4, pp 646–655 | Cite as

Intensification of Eudialyte Concentrate Leaching by Nanosecond High-Voltage Pulses

  • V. A. ChanturiaEmail author
  • I. Zh. BuninEmail author
  • M. V. Ryazantseva
  • E. L. Chanturia
  • A. L. Samusev
  • E. V. Koporulina
  • N. E. Anashkina
Mineral Dressing

Abstract

The mechanism of weakening and directional change in structural and chemical properties of eudialyte under nonthermal exposure to nanosecond high-voltage electromagnetic pulses and nitric-acid leaching is studied. The methods of X-ray photoelectron spectroscopy, Fourier-transform infrared spectroscopy, scanning electron microscopy and microhardness measurement are used. The rational mode of high-energy pulsed treatment is determined. After such mode treatment, the acid leaching of eudialyte concentrate results in recovery of zirconium and total rare earth elements higher by 1.7 and 1.4 times as against reference standards.

Keywords

Eudialyte XPS FTIR SEM structural and chemical properties microhardness high-power electromagnetic pulses leaching 

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Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  • V. A. Chanturia
    • 1
    Email author
  • I. Zh. Bunin
    • 1
    Email author
  • M. V. Ryazantseva
    • 1
  • E. L. Chanturia
    • 1
  • A. L. Samusev
    • 1
  • E. V. Koporulina
    • 1
  • N. E. Anashkina
    • 1
  1. 1.Academician Melnikov Research Institute of Comprehensive Exploitation of Mineral ResourcesRussian Academy of SciencesMoscowRussia

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