An experimental and modeling study on the feasibility of the Scheibel extraction column is presented for heavy metal separation from chloride solution. In continuous experiments, the chemical reaction systems are considered zinc extraction by D2EHPA and stripping from the loaded organic phase by chloride solutions. The experimental results represent that the best extraction and stripping rates in the agitation speed of 155 rpm and the rate of inlet phases of 28 L/h are equal to 99.56% and 98.11%, respectively. The mass transfer modeling by applying the forward mixing is interpreted for solvent extraction systems in this column with the fitting technique. The calculated results from theoretical models compared with the experimental data, which good agreement was obtained using this model. The mathematical modeling on the reactive mass transfer data expresses that the axial dispersion coefficients based on the dispersed phase improve with increased agitation speed and dispersed phase rate. In contrast, these coefficients have an inverse relation with the continuous phase flow rate. This paper's experimental and numerical study provides beneficial information about the metallurgical industry to design solvent extraction columns.

对 Scheibel 萃取柱从氯化物溶液中分离重金属的可行性进行了实验和建模研究。在连续实验中，化学反应系统被认为是通过 D2EHPA 提取锌和通过氯化物溶液从负载的有机相中汽提。实验结果表明，在155 rpm的搅拌速度和28 L/h的入口相率下，最佳的萃取和汽提率分别为99.56%和98.11%。应用正向混合的传质模型在此柱中用拟合技术解释为溶剂萃取系统。将理论模型的计算结果与实验数据进行了比较，使用该模型获得了良好的一致性。反应传质数据的数学模型表明，基于分散相的轴向分散系数随着搅拌速度和分散相速率的增加而提高。相反，这些系数与连续相流速成反比。本文的实验和数值研究为冶金行业设计溶剂萃取塔提供了有益的信息。