Abstract

An environmentally friendly extraction system based on polypropylene glycol 425 and sodium chloride for the extraction of Pt(IV) and Pd(II) from diluted hydrochloric acid solutions has been proposed for the first time. The effect of the initial concentration of a metal, the acidity of a medium, temperature, the concentration of HCl, and the concentration of sodium chloride in the system on the interphase distribution of platinum-group metal ions has been studied. The mechanism of the extraction of the metal ions under study has been determined. It has been shown that the proposed extraction system can potentially be used for the separation of platinum and palladium.

中文翻译：

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使用聚丙二醇425从盐酸溶液中萃取Pt（IV）和Pd（II）

摘要

首次提出了一种基于聚丙二醇425和氯化钠的环保提取系统，用于从稀盐酸溶液中提取Pt（IV）和Pd（II）。研究了金属的初始浓度，介质的酸度，温度，HCl的浓度和系统中氯化钠的浓度对铂族金属离子的相间分布的影响。已经确定了所研究金属离子的提取机理。已经表明，所提出的萃取系统可以潜在地用于分离铂和钯。