Effect of Solid Concentration and Particle Size on the Flotation Kinetics and Entrainment of Quartz and Hematite

Despite the importance of solid concentration in froth flotation, its effect on flotation kinetics and entrainment has rarely been studied. In this study, quartz hematite single-mineral systems as a function particle size were investigated using dodecylamine acetate collector. Kinetics modeling showed that Gamma distribution achieved best agreement with experimental data, whereas Classical Klimpel models poorly fit data (e.g., RMSE). The rate constants (k) both at higher concave shape, inflexion point middle-size range, trend altered lower concentrations. Overall, exhibited equilibrium recoveries (R∞) than hematite, which indicates better overall constants. degree water recovery was concentrations, but system R∞ system, meaning gangue could be direct reverse one. Therefore, is associated can reduce loss by during flotation. An inverse relationship identified between terms ratio to concentrate. iron ore, refraining from achieving help limit entrainment, not necessarily case No model or method other Warren Ross approximated trends finest range (−38 µm). However, extending polynomial led an improved results. addition concentration, density revealed key developing new models. Finally, after fast period (true flotation) over, slow mainly driven slow-floating fraction.