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Flotation and cyanidation of a
semi-refractory gold ore Beneficiation
of a low-grade gold ore was studied by column flotation. The quality of the concentrates
obtained by flotation column was found to be much superior compared to that of
conventional flotation cells. Effect of this enrichment on cyanidation was investigated in
the laboratory. Effect of different variables viz., pre-aeration, airflow rate, cyanide
dosage, pH of the pulp, concentrate grade etc. were studied. The study indicated the
reduction in cyanide consumption with high-grade gold concentrates used in the
cyanidation. The results were further confirmed by conducting large-scale cyanidation
tests. |
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