IMPROVEMENT OF MICRODESINTEGRATION PROCESSES FOR SAND OBTAINED FROM A COMPLEX DEPOSIT OF PRECIOUS METALS AND CHARACTERIZED BY HIGH STRENGTH CHARACTERISTICS
https://doi.org/10.17073/0021-3438-2017-3-4-10
Abstract
The paper considers research findings on sands from the high-clay alluvial compound complex deposit of the Fadeevsky ore-placer site characterized by high sand strength characteristics and by an elevated content of small fractions of valuable components. The paper describes an energy-dispersive microanalysis of rock samples. The samples contain trace elements of a wide range of noble (including gold, silver, and platinum), rare-earth and other elements. It was established that sands from the gold-bearing placer under study constituted a rather complex object for disintegration. Acoustic characteristics of sands under study in their original state and after water saturation were determined experimentally and analytically. They indicate a significant exceedance of the proportion of shear modulus maximum values. In order to solve the microdisintegration problem for the purpose of extracting small and fine gold by more environmentally and technologically efficient means, the paper proposes to use systems based on processes of cavitation-acoustic influence on the mineral component of the slurry.
About the Authors
N. P. Khrunina
Mining Institute of Far Eastern Вranch of the Russian Academy of Sciences
Russian Federation
Cand. Sci. (Tech.), senior researcher of the Laboratory of problems developing placer deposits
Russian Federation
Cand. Sci. (Tech.), senior researcher of the Laboratory of problems developing placer deposits
A. Yu. Cheban
Mining Institute of Far Eastern Вranch of the Russian Academy of Sciences
Russian Federation
Cand. Sci. (Tech.), associate prof., senior researcher of the Laboratory of problems of ore and non-ore deposits in the open way
Russian Federation
Cand. Sci. (Tech.), associate prof., senior researcher of the Laboratory of problems of ore and non-ore deposits in the open way
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Review
For citations:
Khrunina N.P., Cheban A.Yu. IMPROVEMENT OF MICRODESINTEGRATION PROCESSES FOR SAND OBTAINED FROM A COMPLEX DEPOSIT OF PRECIOUS METALS AND CHARACTERIZED BY HIGH STRENGTH CHARACTERISTICS. Izvestiya. Non-Ferrous Metallurgy. 2017;(3):4-10. (In Russ.) https://doi.org/10.17073/0021-3438-2017-3-4-10
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