Emulsion liquid membrane (ELM) pertraction of V^V ions from dilute acidic solution by using a mixture of di(2-ethylhexyl)phosphoric acid (D2EHPA) and mono(2-ethylhexyl)phosphoric acid (M2EHPA) was studied. First, solvent extraction of V^V from an aqueous medium was performed, and the optimum feed pH and extractant concentration were obtained. Tributyl phosphate was used as modifier to increase membrane stability and decrease membrane swelling. The effects of diluent type, extractant concentration of the emulsifier concentration, stripping reagent concentration (sulfuric acid), organic phase/stripping phase volume ratio, emulsification time and speed, feed initial pH, agitation speed, temperature, and contact time on V^V extraction efficiency and ELM stability were considered.

中文翻译：

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含有商业萃取剂的乳化液膜从稀酸性介质中萃取钒 (V)

研究了使用二（2-乙基己基）磷酸（D2EHPA）和单（2-乙基己基）磷酸（M2EHPA）的混合物从稀酸性溶液中提取V ^V离子的乳液液膜（ELM） 。^{首先，从水性介质中对 V V}进行溶剂萃取，得到最佳进料 pH 值和萃取剂浓度。磷酸三丁酯用作改性剂以增加膜稳定性并减少膜膨胀。稀释剂类型、乳化剂浓度、萃取剂浓度、反萃取剂浓度（硫酸）、有机相/反萃取相体积比、乳化时间和速度、进料初始 pH 值、搅拌速度、温度和接触时间对 V ^V的影响提取效率和ELM稳定性被考虑在内。