Abstract Improving the kinetics of flotation with a given feed often involves adding more reagents or changing the reagent scheme. However, this approach could greatly increase operational cost and cause downstream problems. The present work demonstrates a novel approach to improving the flotation kinetics by applying acoustic sound on flotation. Quartz particles were used as model particles and the flotation tests were carried out in batch mode. The experimental variables were focused on sound frequency (250–500 Hz) and amplitude (90–125 dB). The flotation recovery-versus-time data were fitted to the classical first-order kinetic model and two other kinetics models considering the distribution of rate constants. It was found that use of acoustic sound at 350 Hz and above 110 dB and at 400 Hz and 125 dB could increase the apparent flotation rate constant, suggesting that acoustic sound when applied at proper conditions can improve the flotation kinetics.

中文翻译：

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声学改善浮选动力学的潜力

摘要 使用给定进料改善浮选动力学通常涉及添加更多试剂或更改试剂方案。但是，这种方法可能会大大增加运营成本并导致下游问题。目前的工作展示了一种通过在浮选中应用声学来改善浮选动力学的新方法。石英颗粒用作模型颗粒，浮选试验以分批模式进行。实验变量集中在声音频率 (250–500 Hz) 和振幅 (90–125 dB) 上。考虑到速率常数的分布，浮选回收率对时间的数据拟合到经典的一级动力学模型和其他两个动力学模型。