钪-P507萃取色层分离的研究及其应用

P507 Extraction- Chromatographic Separation of Scandium and Its Application

本文用2-乙基己基膦酸单2-乙基己基酯(P507)和二甲苯作固定相,以硅烷化硅球作载体,研究了钪在P507萃取色层柱上的性质,测定了钪与P507络合物的组成比,确定了钪与稀土及伴生元素的分离条件,拟定了稀土氧化物中钪萃取色层分离的测定方法。方法简便、准确,易于操作,测定范围为0.x～x%。

In the paper, the behaviour of scandium on the P507 extraction chromatographic column has been studied with P507 dimethyl benzene as stationary phase,silane silicagel as support, The composition ratio of the complex of scandium with P507 and the separation conditions of scandium from rare earths and accompanying elements have been studied. A method for the determination of small amounts of scandium in rare earth oxides has been designed with the extraction chromatographic separation technique. The method is convenient and accurate, its determination range is 0.x～x%。