申请人:Kyushu University, National University Corporation
公开号:US20140377150A1
公开(公告)日:2014-12-25
Provided is a method for selectively extracting and inexpensively recovering scandium from an acidic solution containing calcium, magnesium, and scandium. The scandium extraction method according to the present invention involves subjecting an acidic solution containing calcium, magnesium, and scandium to solvent extraction using an extraction agent consisting of an amide derivative represented by the general formula below. In the formula, R
1
and R
2
represent the same or different alkyl groups, and R
3
is a hydrogen atom or alkyl group. The amide derivative preferably consisting of one or more derivatives selected from glycine amide derivatives, histidine amide derivatives, lysine amide derivatives, and aspartic acid amide derivatives. The pH of the acidic solution is preferably pre-adjusted to between 1 and 4.
提供了一种从含有钙、镁和钪的酸性溶液中选择性地提取和廉价地回收钪的方法。根据本发明的钪提取方法涉及将含有钙、镁和钪的酸性溶液暴露于使用由下面的一般公式表示的酰胺衍生物组成的萃取剂的溶剂萃取中。在该公式中,R1和R2代表相同或不同的烷基基团,R3是氢原子或烷基基团。该酰胺衍生物最好由从甘氨酰胺衍生物、组氨酰胺衍生物、赖氨酰胺衍生物和天冬氨酸酰胺衍生物中选择的一个或多个衍生物组成。酸性溶液的pH最好预先调整到1至4之间。