INVESTIGATION OF THE FLOTATION ENRICHABILITY OF TECHNOLOGICAL SAMPLES OF ALUNITE ORES FROM THE GUSHSAI DEPOSIT
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This article presents the results of research conducted to determine the optimal conditions for the flotation beneficiation of alunite ores of the Gushsai deposit. During the research, the influence of the degree of grinding, pH of the alkaline medium, and reagent consumption on the flotation extraction efficiency of alunite was studied. As a result of the experiments, the optimal technological conditions were determined to be: grinding fineness of 85% passing through -0.074 mm, alkaline environment with pH=10, sodium oleate consumption of 500 g/t, and tall oil consumption of 500 g/t. As a result of flotation conducted using a scheme of sequential introduction of the collecting reagent and separate foam collection, the alunite recovery in the overall concentrate reached 94.3%. Furthermore, flotation processes carried out in a closed cycle increased the alunite content in the concentrate to 60.97%, with a recovery rate of 87.48%. The obtained results were analyzed, and recommendations were provided for developing an effective technology for the beneficiation of alunite ores.
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