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报道了吐温 (Tween) 80 - (HN4) 2 SO4-水的固液萃取体系中Pt(Ⅳ )、Pd(Ⅱ)、Ir(Ⅳ )碘络阴离子的萃取行为 ,在HCl-NH4I介质中 ,该体系可萃取Pt(Ⅳ)、Pd(Ⅱ)、Ir(Ⅳ ) ,而贱金属不被萃取 ,可用于Pt、Pd、Ir与贱金属的分离。对合成样进行了萃取分离 ,并初步探讨其机理。
The extraction behavior of Pt (Ⅳ), Pd (Ⅱ) and Ir (Ⅳ) iodide anions in solid-liquid extraction system of Tween 80 - (HN4) 2 SO4- The system can extract Pt (Ⅳ), Pd (Ⅱ), Ir (Ⅳ), while the base metal is not extracted, which can be used for the separation of Pt, Pd and Ir from the base metal. The synthetic samples were extracted and separated, and its mechanism was discussed.