Abstract Performance of some mineral processing operations is known to be impeded due to the presence of even a small amount of clays. The study was conducted to evaluate the influence of commonly encountered clay types, bentonite and kaolin, on the performance of Knelson concentrator. Artificially mixed slurries of magnetite, quartz and clay were used for the experiments. The results indicated that the influence of both clay types on the operation of Knelson concentrator was insignificant; the reason is probably that clay particles are transported to the tailing without entering the concentrated bed inside the concentrate bowl of Knelson concentrator. Both magnetite and gangue recovery were analysed by plotting performance curves using size distribution.

中文翻译：

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Knelson选矿厂处理含粘土矿石的性能评价

摘要 众所周知，即使存在少量粘土，某些矿物加工操作的性能也会受到阻碍。该研究旨在评估常见粘土类型（膨润土和高岭土）对 Knelson 选矿机性能的影响。实验使用磁铁矿、石英和粘土的人工混合浆料。结果表明，两种粘土类型对Knelson选矿厂运行的影响都不显着；原因可能是粘土颗粒被输送到尾矿，而没有进入 Knelson 选矿机的精矿碗内的精矿床。通过使用粒度分布绘制性能曲线来分析磁铁矿和脉石回收率。