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作 者:段帅康 王振银 王大文 李相良 冯亚平 DUAN Shuaikang;WANG Zhenyin;WANG Dawen;LI Xiangliang;FENG Yaping(Norinmining Ltd.,Beijing 100053,China)
出 处:《贵金属》2023年第1期74-80,共7页Precious Metals
摘 要:铑价格昂贵,在现代工业中发挥着重要作用,冶金原料包括矿产铂族金属精矿和废催化剂、废合金等二次资源。本文针对贵金属生产过程中含铑冶金原料的浸出工艺进行了介绍。不同原料需选择不同的浸出方法,包含水溶液氯化法、王水溶解法、氧化酸浸法和电化学溶解法等。浸出前的预处理方式包含合金化(金属捕集)、钠盐熔融和中温氯化等。随着含铑原料处理规模的增大,开发节能低耗、经济高效、绿色环保的浸出工艺是未来的重要发展方向。Rhodium is expensive and plays an important role in modern industry.Its metallurgical materials include mineral platinum-group concentrates and secondary resources such as spent catalysts and spent alloys.This article introduces the leaching method of rhodium-containing metallurgical material in the refining process of precious metals.Different leaching methods apply to different materials.These methods are aqueous chlorination,aqua regia dissolution,oxidizing and electrochemical dissolution.The pre-treatment process before leaching includes alloying(metal trapping),sodium salt melting and medium temperature chlorination,etc.With the increase in the processing scale of rhodium-containing raw materials,the development of energy-saving,low-consumption,cost-effective,and green leaching processes is an important direction in the future.
分 类 号:TF837[冶金工程—有色金属冶金]
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