An Experimental Investigation on the Effect of Different Reagents on Gold Ore Recovery Efficiency
DOI:
https://doi.org/10.5281/zenodo.17044359Keywords:
Gold ore, reagent usage, ore recovery, experimental study, gold recoveryAbstract
In this study, the effects of different collector and frother reagents on gold ore recovery were experimentally investigated. A total of ten flotation tests were conducted under constant stirring speed (1,200 rpm), pH (7), and solid ratio (30% PKO) conditions, using various reagent types and dosages. The effects of these reagent combinations on the flotation behavior of the ore were evaluated, and the amounts and compositions of the obtained concentrates were analyzed. As a result of the tests, while flotation success was achieved with some reagent combinations, the ore did not float in others. Overall, 4 out of 10 tests yielded successful flotation, highlighting the importance of reagent–ore compatibility. The highest gold content of 7.36 ppm was obtained in the test using the Tomamine M73 + Aerofroth 76A combination, while the highest silver content of 398.99 ppm was achieved with the KEX-Aero 3477 + MIBC combination. These results indicate that not only the type of reagent but also its dosage and synergistic combination significantly affect flotation efficiency. For example, certain reagents required higher dosages to produce flotation, and tests without frothers generally failed to generate sufficient concentrate. The findings emphasize that careful reagent optimization, tailored to the mineralogical structure of the ore, is essential for achieving maximum recovery efficiency in gold ore flotation.
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