Improving microdisintegration processes of sands of an integrated deposit of precious metals with high strength characteristics

Abstract

The results of an investigation into the sands of the highly clayey placer complex integrated deposit of the Fadeevskoe ore-placer site with high strength characteristics of sands and an increased content of fine fractions of valuable components are considered. Energy-dispersive microanalysis of rock samples is performed. Samples contain microelements of a broad range of precious (including gold, silver, and platinum), rare earth, and other elements. It is established that the sands of the gold-bearing placer under study are a rather complex object for disintegration. Acoustic characteristics of the sands under study in the initial state and under water saturation, which evidence that the fraction of maximal values of the shear modulus is considerably exceeded, are determined by the experimental–analytical method. To solve the question of microdisintegration, in order to recover spark and fine gold using more environmentally and technologically efficient means, it is proposed to use systems based on processes of the cavitation-acoustic effect on a mineral mixture component.