Exploring the effects of different process water sources on xanthate adsorption and flotation performance

Manenzhe, Rešoketšwe M.; Manono, Malibongwe S.; Wiese, Jennifer G.; Musuku, Benjamin; Corin, Kirsten C.

doi:10.1016/j.mineng.2023.108376

Cited by 3 publications

(1 citation statement)

References 21 publications

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“…Indeed, factors such as the nature and concentration of dissolved ions or combinations of ions are possibly more signi cant than overall water conductivity. The experimental ndings obtained from recent research [32][33][34][35][36] utilizing intricate water matrices and xanthate as a collector demonstrate that varying concentrations of ions have distinct effects on collector adsorption and otation. Bornival et al [37] reported that coal preparation plants utilize recycled water, and the ionic composition of the process water exhibits a conductivity that ranges between 240 and 15,960 S/cm, thereby demonstrating the signi cant variability in water quality.…”

Section: Bench Scale Flotation Testsmentioning

confidence: 99%

Reduction of Amine Consumption in Iron Ore Flotation through Direct Reuse of Process Water on Bench Scale

Monte,

Santos,

Veneu

et al. 2024

Preprint

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The present work investigated the direct reuse effect of process water containing residual amine from tailings and concentrate pulps on the performance of the cationic reverse flotation of iron ore. Iron ore sample collected after the desliming operation in Conceição Industrial Unit (Minas Gerais) was used for the bench scale flotation studies. The experiments used water recirculation for five cycles and amine to achieve the optimal flotation dosage, considering the residual amine contained in process water and according to the amine dosage used in the Conceição industrial circuit. The average recovery of amine in the aqueous phase (process water) was 46%; consequently, the consumption of the new amine fed into the circuit was reduced. The experiment results showed that the direct reuse of process water and reduction in new amine addition could be performed without negatively affecting the quality of the final iron ore concentrate (68% Fe and 1.3% SiO2). According to the results obtained in this work, process water containing residual amine can be reused in the iron ore flotation without loss of concentrate quality and flotation performance. The chemical composition of the water process is essential, and the residual amine in the aqueous phase must be controlled frequently.

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