Beneficiation of Gold Ore by Flotation Column: A Pilot Scale Study

During the first phase of the study, laboratory size
flotation column was installed within the premises
of flotation plant of M/s BGML to study the
amenability of column technology for the benefIciation of gold. Encouraged by the results, semi-commercial flotation column designed and developed by NML Madras Centre was installed in the flotation circuit to evaluate its performance and also to instil confidence. The results obtained both by laboratory and semi-commercial size
flotation columns clearly indicated that the
columns can perform better than the conventional
cells. It was observed that high quality
concentrates assaying 40 to 50 ppm of gold could
be achieved by flotation column, whereas
conventional cells could produce hardly 10 to 15
ppm of gold concentrates.