Oxidation of a galenite surface under the impact of nanosecond pulses

• Published in: Bulletin of the Russian Academy of Sciences. Physics Vol. 78; no. 4; pp. 244 - 248
• Main Authors: Chanturiya, V. A., Bunin, I. Zh, Ryazantseva, M. V., Khabarova, I. A., Anashkina, N. E.
• Format: Journal Article
• Language: English
• Published: Heidelberg Allerton Press 01-04-2014; Springer Nature B.V
• Subjects: Accumulators; Adsorption; Collectors; Composition effects; Disorder; Electric fields; Flotation; Hadrons; Heavy Ions; Infrared spectroscopy; Nanosecond pulses; Nuclear Physics; Oxidation; Phase composition; Phase transitions; Physics; Physics and Astronomy; Proceedings of the International Symposium “Ordering in Minerals and Alloys” OMA-16 and Proceedings of the International Symposium “Order; Properties of Oxides” ODPO-16; Sulfur; Surface chemistry; Lead Sulfate; Lead Carbonate; Galenite; Nanosecond Pulse; Pulse Treatment
• ISSN: 1062-8738; 1934-9432
• DOI: 10.3103/S106287381404008X

The effect of high-voltage nanosecond pulses on the phase composition of a galenite surface is investigated by means of XPES and IR Fourier spectroscopy. According to the XPES data, structural-phase transformations caused by pulsed treatment are mainly associated with variations in the chemical state of sulfur atoms, which determines the electrochemical and flotation properties of a semiconductor sulfide mineral: an increase in the electrode potential creates favorable conditions for adsorption of anion collectors and raises the flotation activity of galenite.