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| Comprehensive Recovery of Platinum, Palladium, and Rhodium from Gold Refining Tailings |
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Received:May 05, 2023
Revised:May 08, 2023
Accepted:May 15, 2023
Published Online:June 16, 2023
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| DOI：doi：10.3969/j.issn.1007-7545.2023.07.011 |
| KeyWord:gold refining tailings；total wet process；comprehensive recycling；platinum；palladium; rhodium |
| Author | Institution |
| LIANG Yuan |
紫金铜业有限公司 |
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| Abstract: |
| The technological process of comprehensive recovery of Pd, Pt, Rh, Au, and Ag from the tailings of gold refining by total wet process was studied. The preparation of pure palladium and platinum, enrichment of rhodium, and the technological control conditions to improve the recovery of palladium and platinum were studied. The results show that under the new process parameters, the grade of sponge palladium is ≥99.95%, and the recovery rate is ≥98%. The grade of sponge platinum is ≥99.99%, and the recovery rate is ≥98%. The recovery rate of gold and silver is both 98% above, and rhodium is enriched in the insoluble residue of aqua regia leaching. The process route has the advantages of reasonable and clear structure, strong operability, low production cost, high metal direct yield, stable and reliable product quality, and obvious economic benefits, which can be used as a process for extracting precious metals such as platinum, palladium, rhodium and other precious metals from gold refining tailings. |
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