SCANDIUM EXTRACTION METHOD
    10.
    发明公开
    SCANDIUM EXTRACTION METHOD 有权
    钪萃取法

    公开(公告)号:EP2712940A1

    公开(公告)日:2014-04-02

    申请号:EP13761717.1

    申请日:2013-02-21

    IPC分类号: C22B59/00 C22B3/26

    摘要: 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.

    摘要翻译: 本发明提供一种从含有钙,镁和钪的酸性溶液中选择性萃取并廉价回收钪的方法。 根据本发明的钪提取方法涉及使用由下列通式表示的酰胺衍生物组成的提取剂对含有钙,镁和钪的酸性溶液进行溶剂提取。 在该式中,R1和R2代表相同或不同的烷基,R3是氢原子或烷基。 酰胺衍生物优选由一种或多种选自甘氨酰胺衍生物,组氨酸酰胺衍生物,赖氨酸酰胺衍生物和天冬氨酸酰胺衍生物的衍生物组成。 酸性溶液的pH值优选预调至1至4。