用于萃取分离Re(Ⅲ)新型乳状液膜的构筑  

Construction of a New Emulsion Film for the Extraction and Separation of Re(Ⅲ)

作　　者：雷红霞 李勇 LEI Hongxia;LI Yong(College of Architecture and Environment,Ningxia Institute of Technology,Shizuishan 753000,China;College of Metallurgy,Northeastern University,Shenyang 110819,China)

机构地区：[1]宁夏理工学院建筑与环境学院,宁夏石嘴山753000 [2]东北大学冶金学院,辽宁沈阳110819

出　　处：《湿法冶金》2024年第2期183-188,共6页Hydrometallurgy of China

基　　金：国家自然科学基金资助项目(52074082)。

摘　　要：针对高纯单一稀土元素或化合物萃取分离较为困难的问题,研究构筑了一种新型乳状液膜并用于萃取分离Re(Ⅲ)(La^(3+)、Ce^(3+)、Pr^(3+)、Nd^(3+))。采用单因素试验法确定了液膜体系中流动载体的种类和浓度、表面活性剂种类和浓度、内水相浓度和相比(R oi)。结果表明,构筑的乳状液膜体系最佳组成为:流动载体为6%D2EHPA(二-(2-乙基己基)磷酸),表面活性剂为5%T154(聚异丁烯双丁二酰亚胺),内水相HCl溶液浓度为3 mol/L,相比R oi=1.5。在该体系下所构筑乳状液膜相稳定,萃取效果优良,能实现Re(Ⅲ)的高效分离。Aiming at the difficulty of extracting and separating of high purity single rare earth elements or compounds,a new emulsion liquid film was constructed and used for the extraction and separation of Re(Ⅲ)(La^(3+),Ce^(3+),Pr^(3+),Nd^(3+)).The types and concentrations of mobile carriers and surfactants,and the internal water phase in liquid film system were determined by single factor experiment.The results show that the optimal composition of the emulsion liquid membrane system is 6%D2EHPA,5%T154,3 mol/L HCl solution,phase ratio R oi=1.5.The emulsion film constructed in this system has stable phase and excellent extraction effect,and can realize efficient separation of Re(Ⅲ).

关 键 词：萃取 分离 铼 乳状液膜 流动载体 表面活性剂 相比 

分 类 号：TF803.23[冶金工程—有色金属冶金] TF804.2TF841.8