Research on New Process for Separating and Purifying Platinum and Palladium from Secondary Resource of Precious Metals Iron Alloys
Various insoluble slags from platinum group metal production line in Jinchuan Group Company and secondary resources of platinum group metal recovered in China were co-processed by pyrogenic process and iron capture to produce precious metals iron alloy.The process of iron removal with pre-leaching,deep impurity removal,platinum-palladium enrichment,and platinum-palladium purification was adopted,and key parameters were studied,so as to realize the separation and purification of platinum-palladium in ferroalloy.The 99.99%platinum and palladium products in line with GB/T 1419-2015 and GB/T 1420-2015 national standard are output.A new process route for wet treatment of precious metals iron alloy has been formed,which has the advantages of short process flow,high recovery rate,high product quality and industrializable.
precious metals iron alloyiron removal with pre-leachingdeep impurity removalpurification of platinum palladium
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