To reduce the environmental impact during purification of molten aluminum, an environmentally friendly flux is being considered as a potential replacement for the highly toxic chlorine-containing gas currently used. However, the reactivity of the flux is much lower relative to the gases, resulting in low-efficiency purification. Here, a new approach using water modeling was implemented to investigate mass transfer between molten aluminum and the flux during rotary flux injection. Silicon oil, air, and water were used as a model flux, gas, and aluminum melt, respectively. The oil and air were injected into the water bath through the shaft of a rotary impeller. Mass transfer between the oil and water was enhanced with increasing impeller rotation rate. The major enhancement mechanism was entrainment and dispersion of oil droplets from the oil layer floating on the water surface. There was a threshold for the impeller rotation rate, which significantly increased the volumetric mass transfer coefficient.

为了减少铝液净化过程中对环境的影响，人们正在考虑使用一种环保型助焊剂来替代目前使用的剧毒含氯气体。然而，与气体相比，助焊剂的反应性要低得多，从而导致净化效率低下。在这里，实施了一种使用水建模的新方法来研究旋转熔剂注射过程中熔融铝和熔剂之间的传质。硅油、空气和水分别用作模型助焊剂、气体和铝熔体。油和空气通过旋转叶轮的轴注入水浴中。随着叶轮转速的增加，油和水之间的传质增强。主要的增强机制是来自漂浮在水面上的油层的油滴的夹带和分散。叶轮转速有一个阈值，这显着增加了体积传质系数。