Selective and Active Transport of In<sup>3+</sup>through<i>N</i>-Nitroso-<i>N</i>-<i>p</i>-octadecylphenylhydroxylamine Ammonium Salt Impregnated Membrane
作者:Hiroshi Okushita、Takeo Shimidzu
DOI:10.1246/bcsj.63.920
日期:1990.3
Selective and active transport of In3+ was studied through a polypropylene membrane impregnated with N-nitroso-N-p-octadecylphenylhydroxylamine ammonium salt (3). In3+ is selectively concentrated from In3+–Zn2+, In3+–Al3+ and In3+–Zn2+–Al3+ mixtures by an antiport mechanism as a counter flow of H+, respectively. The selective transport of In3+ was found to be attributed to the chelating affinity between 3 and In3+. As a model experiment of the practical use, the separation of In3+ from the solution of containing 10–100 folds of Zn2+ was investigated. The present membrane selectively separates In3+, the separation factor is 200–250. It is suggested that the present membrane system is useful for separation of indium from the ore containing indium such as the zincblende.
通过用N-亚硝基-N-十八烷基苯基羟胺铵盐(3)浸渍的聚丙烯膜研究了In3+的选择性和主动运输。通过反流H+的抗运机制,In3+分别从In3+–Zn2+、In3+–Al3+和In3+–Zn2+–Al3+混合物中选择性地浓缩。发现In3+的选择性运输归因于3和In3+之间的螯合亲和力。作为实际应用的模型实验,研究了从含有10-100倍Zn2+的溶液中分离In3+。目前的膜选择性地分离In3+,分离因子为200-250。建议目前的膜系统可用于从含铟的矿石(如锌矿)中分离铟。