STUDY OF THE FINELY-DISPERSED GOLD RECOVERY PARAMETERS
Kaumetova D.S. Koizhanova A.K. Toktar G. Magomedov D.R. Abdyldaev N.N.
2022National Academy of Sciences of the Republic of Kazakhstan
News of the National Academy of Sciences of the Republic of Kazakhstan, Series of Geology and Technical Sciences
2022#2022Issue 169 - 75 pp.
This paper provides a study of the parameters of fine gold extraction, using dispersant on a column flotation machine. One of the important problems of gold mining industry is the involvement in the processing of refractory hard-to-enrich gold raw materials, as well as the tailings, which occupy huge areas and worsen the environmental situation. Flotation column machines, which are widespread in the enrichment practice, along with the traditional mechanical and pneumomechanical machines, can radically increase the manageability of the process due to the principle of all sub-processes, which require significantly different hydrodynamic conditions, running in the same volume of the unit. The scientific novelty lies in the use of the cavitation system based on the universal Rayleigh-Plesset (RP) cavitation bubble dynamics equation. As basic reagents were used collector-xanthogenate butyl, foaming agent-T-92, Flotation was carried out on tap water at pH-7.0. Air pressure in dispersion systems was from 2 to 10 atm. The results of the experiments showed that the most optimal parameter of the pressure generator in terms of pressure fed into the dispersion system, is the figure of 6.0 atm. At pressure of 6,0 atm in dispersal system of the pressure generator the mass yield of a concentrate has reached 9,0% and at the gold content in it 8,12 g/t the recovery has increased to 87,0%. Further pressure increase contributes to intensive transfer of waste rock to the concentrates, which markedly increases the mass yield, but at the same time decreases the gold content in the concentrates. At 6.0 atm, the optimum balance of mass yield and noble metal content in the concentrate is achieved.
Column flotation machine , Concentrate , Dispersant , Finely-dispersed gold , Tailings
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NJSC “Karaganda Technical University”, Karaganda, Kazakhstan
Satbayev University, Institute of Metallurgy and Beneficiation JSC, Shevchenko str., 29/133, Almaty, 050013, Kazakhstan
NJSC “Karaganda Technical University”
Satbayev University
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