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一、前言酸性磷(膦)酸酯对稀土元素的萃取已广泛应用于湿法冶炼工艺,它们的萃取性能和机理,我们已研究报导过。本文在酸性磷(膦)酸酯的结构与萃取稀土性能关系的基础上,应用三种不同类型的酸性磷(膦)酸酯:二(2—乙基己基)磷酸(p—204),2—乙基己基膦酸—2—乙基己酯(p—507),二(2—乙基己基)膦酸(p—229)制备了以Nd 及 Yb 为代表的轻重稀土配合物,用红外光谱(IR),X—光电子能谱(ESCA)研究了配合物的结构并讨论了与萃取性能的
I. Introduction Acid phosphorus (phosphine) ester of rare earth elements extraction has been widely used in wet smelting process, their extraction performance and mechanism, we have studied reported. Based on the relationship between the structure of acidic phosphorus (phosphonate) acid ester and the properties of rare earth extracted, three different types of acidic phosphorus (phosphonates): bis (2-ethylhexyl) phosphoric acid (P-507), di (2-ethylhexyl) phosphonic acid (p-229) were prepared by the Nd and Yb light rare earth complexes represented by infrared The structure of the complex was studied by spectroscopy (IR) and X-ray photoelectron spectroscopy (ESCA)