The reactive extraction behavior on the mean drop size and distribution for synergistic extraction of vanadium from sulfate medium with di-(2-ethylhexyl) phosphoric acid (D2EHPA) and its mixture with tributyl phosphate (TBP) in kerosene has been interpreted in the modified rotating disc contactor column. In batch experiments, the maximum extraction efficiency was obtained in the single extraction system with 0.29 molar D2EHPA at an equilibrium pH of 2, whereas the extraction percentage was significantly increased by adding 0.3 molar TBP into the same D2EHPA concentration due to the synergistic effect. The solvent extraction process has been optimized by applying the central composition design approach in the column experiments. The influence of operational variables such as agitation rate and both phase flow rates as well as the type of used systems have been investigated on drop behavior. A unified model was provided for modified rotating disc columns. It was found from Monte Carlo simulation for uncertainty analysis that the agitation speed and type of utilized systems, namely reactive or physical systems have more profound impacts on the mean drop size. The optimum conditions were obtained at the agitation rate of 400 rpm, and phase flow rates equal to 26 L/h.

用二-（2-乙基己基）磷酸（D2EHPA）及其与磷酸三丁酯（TBP）在煤油中的混合物从硫酸盐介质中协同提取钒的平均液滴尺寸和分布的反应提取行为已在改进的旋转盘式接触器柱。在批量实验中，在平衡 pH 值为 2 时使用 0.29 摩尔 D2EHPA 的单一萃取系统获得最大萃取效率，而由于协同效应，在相同 D2EHPA 浓度中加入 0.3 摩尔 TBP 显着提高了萃取率。通过在柱实验中应用中心组成设计方法优化了溶剂萃取过程。已经研究了诸如搅拌速率和相流速以及所用系统类型等操作变量对液滴行为的影响。为改进的旋转盘柱提供了统一的模型。从用于不确定性分析的蒙特卡罗模拟中发现，搅拌速度和所用系统的类型，即反应或物理系统，对平均液滴尺寸有更深远的影响。最佳条件是在 400 rpm 的搅拌速度和等于 26 L/h 的相流速下获得。