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Journal of Mining Sciences

2021 year, number 1

Effect of Electromagnetic Pulses on Structural, Physicochemical and Flotation Properties of Eudialyte

V. A. Chanturia, I. Zh. Bunin, M. V. Ryazantseva, E. V. Koporulina, N. E. Anashkina
Academician Melnikov Institute of Comprehensive Exploitation of Mineral Resources, Russian Academy of Sciences, Moscow, 111020 Russia
Keywords: Eudialyte, eudialyte concentrate, Fourier-transform infrared spectroscopy, scanning electron microscopy, surface morphology and physicochemical properties, microhardness, adsorption, flotation, high-power nanosecond electromagnetic pulses, dielectric barrier discharge


The mechanism of change in the surface morphology, physicochemical properties, adsorbability and floatability of eudialyte concentrate as a result of exposure to high-power nanosecond pulses and dielectric barrier discharge in air under the atmospheric pressure is analyzed. The research methods were the Fourier-transform infrared spectroscopy, analytical electron microscopy, atomic force microscopy, confocal laser scanning microscopy, microhardness testing, flow potential determination and other techniques. The rational parameters of energy deposition and reagent regimes toward enhanced efficiency of complex eudialyte-bearing ore flotation are found.