A model of flotation was developed and applied to alumina in the aluminum electrolysis cell. The conditions of flotation for alumina on the cryolitic bath surface were determined for disc and sphere geometries. The contact angle between alumina and cryolitic bath, which had not been found in the literature, was measured and it was found to be around 30 deg. Experiments with compressed alumina discs on the cryolitic bath surface were conducted, and the results were compared to the model. The experiments showed how impurities on the bath surface influence the flotation; and how a slight asymmetry in the system may accelerate sinking.

中文翻译：

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铝电解槽电解液表面氧化铝的浮选

开发了一种浮选模型并将其应用于铝电解槽中的氧化铝。冰晶石熔池表面氧化铝的浮选条件是针对圆盘和球体几何形状确定的。测量了文献中未发现的氧化铝和冰晶石浴之间的接触角，发现该接触角约为 30 度。在冰晶石熔池表面上进行了压缩氧化铝盘的实验，并将结果与​​模型进行了比较。实验显示了熔池表面的杂质如何影响浮选；以及系统中的轻微不对称如何加速下沉。