钪是一种分散元素,通常与其它矿物元素伴生。近年来,随着钪的应用研究的进展,微量钪的分离富集已日益为人们所注意,特别是溶剂萃取富集法,国内外对此展开了不少研究。 P_(538)是单烷基磷酸脂,它是稀土的良好萃取剂,由于钪常与稀土共存,因此,研究 Scandium is a dispersing element commonly associated with other mineral elements. In recent years, with the progress of scandium application research, the separation and enrichment of trace scandium has been paid more and more attention, especially the solvent extraction and enrichment method. Many researches have been done at home and abroad. P 538 is a monoalkyl phosphate which is a good extractant for rare earths. Since scandium often coexists with rare earths,