Change in the Functional Chemical Composition of the Surface and Technological Properties of Natural Quartz under the Influence of High-Voltage Nanosecond Pulses

FTIR, Hammett indicator adsorption, microhardness testing, and other physicochemical means of analysis (electrokinetic potential, contact angle of wetting, floatability) are used to study the mechanism of structural–chemical transformations of the surface, the change in physicochemial, mechanical, and technological properties of natural quartz under the influence of high-voltage nanosecond pulses. The impact of pulse energy causes softening, an increase in electron donor ability, and a reduction in the acceptor ability of the quartz surface. This lowers the sorption activity of the mineral with respect to oxyhydryl (carboxylic) flotation collecting agents (sodium oleate).