二(2,4,4-三甲基戊基)膦酸-上胺205-正庚烷乳状液膜分离钪(Ⅲ)、铁(Ⅲ)和镥(Ⅲ)

Separation of Scandium(Ⅲ) from Iron(Ⅲ) and Lutetium(Ⅲ) by Bis (2, 4, 4-trimethylpentyl) Phosphinic Acid-N_(205)-Heptane Emulsion Liquid Membrane

本文研究了二（2，4，4-三甲基戊基）膦酸（Cyanex272）-上胺205-正庚烷乳状液膜分离Sc（Ⅲ）、Fe（Ⅲ）和Lu（Ⅲ）。考察了外相酸度、表面活性剂浓度、流动载体浓度及内相盐酸浓度对Sc（Ⅲ）迁移的影响。并探讨了该液膜体系分离Sc（Ⅲ）、Fe（Ⅲ）和Lu（Ⅲ）的可能性，结果表明，该体系对于稀土矿中Sc（Ⅲ）的分离与分析有良好的应用前景。

The separation of Sc(Ⅲ) from Fe(Ⅲ) and Lu (Ⅲ) by bis (2, 4,4-trimethylpentyl)phosphinic acid-N205-heptane emulsion liquid membrane (ELM) was studied. The effects such as pH of the external aqueous phase, coneentrations of Cyanex 272, N205 and the internal aqueous phase HCl on the transport of Sc(Ⅲ) were observed. Restrits show that it is possible to separate Sc(Ⅲ) from Fe(Ⅲ) and Lu(Ⅲ) with Cyanex 272-N205-heptane emtusion liquid membrane.