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| Comprehensive Recovery of Precious Metals Bearing Multi-component Waste Alloy |
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Received:July 28, 2014
Revised:July 29, 2014
Accepted:July 31, 2014
Published Online:November 19, 2014
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| DOI：10.3969/j.issn.1007-7545.2014.12.008 |
| KeyWord:precious metals; multi-component alloy; waste; recovery |
| Author | Institution |
| wuxian |
西北有色金属研究院 |
| wuyongqian |
西北有色金属研究院 |
| WANG Jing-kun |
西北有色金属研究院 |
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| Abstract: |
| Palladium, silver and copper in precious metals multi-component waste alloy were dissolved with nitric acid by fragmentation technology. Complete and high efficient separation of silver and palladium with gold and platinum was realized. Silver was completely and high efficient separated with palladium by nitrate evaporation and thermal-decomposition. Gold was completely and high efficient separated with platinum by controlling solution’s acidity and hydrazine hydrate reduction. The recovery of palladium, silver, gold, and platinum was >99% >99%, >98% and >98% with purity of pure metal of 99.95% above. |
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