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| Enrichment Characteristics of Au, Pd and Pt in Floatation Concentrates of the Yulong Porphyry Cu-Mo Mine: A Reconnaissance Study |
| LIU Shen-tai1, HUANG Ming-liang2 |
1. Tibet Yulong Copper Co., Ltd., Qamdo, Tibet 854000, China;
2. State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences,Guiyang 550081, China |
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Abstract It is of great significance for comprehensive utilization of the associated critical metals to identify the occurrence characteristics of the associated critical metals in porphyry copper deposits. Taking the Yulong super-large porphyry Cu-Mo deposit in Tibet as an example, the PGE and Au of copper concentrate and molybdenum concentrate samples obtained in the beneficiation processes have been studied, and their comprehensive utilization prospect was discussed in this paper. The analytical results show that though PGE and Au grades of ores are very low, those of floatation concentrates are significantly upgraded (97-464 times). Specifically, the maximum Au, Pd and Pt grades of the Cu concentrates (with average Cu grade of 22.4%) are 0.816, 65.0 and 10.69 ng/g, respectively, whereas those of the Mo concentrates are 0.558%, 23.3 ng/g, and 55.5 ng/g, respectively. This research indicates that the PGE and Au are selectively enriched in the floatation concentrates, as Au and Pd are relatively enriched in the Cu concentrate, whereas Pt is relatively concentrated in the Mo concentrate. According to the grades of PGE and Au in floatation concentrates and the Cu and Mo reserves of the Yulong mine, the estimated resources of the associated Pd, Pt, and Au metals are 0.97, 0.15 and 17.0 t, respectively. It is believed that Pd, Pt, and Au in the floatation concentrates of the mine should have good comprehensive recycling and utilization potential.
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Received: 15 November 2021
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