论文部分内容阅读
本文给出了采用不同类型的选择性离子交换剂,从大量的稀土元素以及某些过渡元素和典型元素中分离微量Sc(Ⅲ)的研究结果。用前沿分析法从Sc(Ⅲ)中纯化稀土元素的最有效的离子交换剂是:磷酸-Duolite ES-63(法国Dia-Prosim公司产品),氨基膦酸-Duolite ES-467(法国Dia-Prosim公司产品)和磷酸纤维素-Setva P(德国Setva公司产品)。采用这些离子交换剂,可以从浓度高达5009/L的Y(Ⅲ)、La(Ⅲ)或Ln(Ⅲ)的盐溶液中把Sc(Ⅲ)选择性地分离出来,溶液的酸度可高达6MHCl。
This paper presents the results of the separation of trace amounts of Sc (Ⅲ) from a large number of rare earth elements and some transition and typical elements using different types of selective ion exchangers. The most effective ion exchangers for the purification of rare earths from Sc (III) by the leading edge analysis are: Phosphoric acid-Duolite ES-63 (Dia-Prosim, France), Aminophosphonic Acid-Duolite ES-467 Company Products) and Phosphoric Acid-Setva P (Setva, Germany). With these ion exchangers, Sc (III) can be selectively separated from salts of Y (III), La (III) or Ln (III) at concentrations up to 5009 / L with acidity of up to 6M HCl.