Abstract

The pyrometallurgical refining of platinum–rhodium alloys from a contaminating copper impurity during induction remelting in the presence of oxygen is studied. Atomic emission analysis data for a platinum–rhodium alloy at each cycle of refining are presented. The results of atomic absorption, X-ray fluorescence, X-ray energy dispersive, X-ray diffraction, and thermal analyses for the contact layer formed during refining are discussed. The kinetic features of the reactions between the components during refining are considered. The influence of the dispersion of the refining powder on the reaction rates is described.

中文翻译：

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杂质对铂铑合金的氧化精炼

摘要

研究了在氧气存在下感应重熔过程中，从污染的铜杂质中对铂-铑合金进行了火法冶金精炼。给出了每个精炼循环中铂铑合金的原子发射分析数据。讨论了原子吸收，X射线荧光，X射线能量色散，X射线衍射和精制过程中形成的接触层的热分析结果。考虑精制期间组分之间反应的动力学特征。描述了精炼粉末的分散对反应速率的影响。