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本文在较高的钕离子浓度下,应用“循环法”改进了Fletcher的数据处理方法,研究了二(1-甲庚基)砱酸-正庚烷-NdCl_3-HCl-NaCl体系的萃取平衡,测定了萃萃合物的组成为NdA_3·1.45HA,表观萃取常数为10~(-1·795);并对萃合物的组成问题及萃取容■)进行了讨论。
In this paper, we improved the Fletcher’s data processing method by the “circulation method” at higher neodymium ion concentration, studied the extraction equilibrium of di-1-methylheptanoic acid-n-heptane-NdCl_3-HCl-NaCl system, The composition of the extract was determined to be NdA 3 1.45HA with an apparent extraction constant of 10-1.795. The composition of the extract and extraction capacity were also discussed.