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| 两段逆流浸出从铁捕集物中富集铂族金属的研究 |
| Study on Enrichment of Platinum Group Metals in Iron-Trapping Material Using Two-Stage Countercurrent Leaching |
| Received:March 17, 2014 |
| DOI： |
| 中文关键词: 有色金属冶金 铂族金属 两段逆流 铁捕集物 富集 |
| 英文关键词: nonferrous metallurgy platinum group metals (PGMs) two-stage countercurrent iron-trapping material enrichment |
| 基金项目:国家高技术研究发展(863)计划项目(2012AA063203)。 |
| Author Name | Affiliation | E-mail | | TONG Weifeng | Kunming Institute of Precious Metals, State Key Laboratory of Advanced Technologies for Comprehensive Utilizationof Platinum Metals, Sino-Platinum Metals Co. Ltd., Kunming 650106, China | tong6756@163.com | | DONG Haigang | Kunming Institute of Precious Metals, State Key Laboratory of Advanced Technologies for Comprehensive Utilizationof Platinum Metals, Sino-Platinum Metals Co. Ltd., Kunming 650106, China | donghaigang0404@126.com | | WU Xiaofeng | Kunming Institute of Precious Metals, State Key Laboratory of Advanced Technologies for Comprehensive Utilizationof Platinum Metals, Sino-Platinum Metals Co. Ltd., Kunming 650106, China | | | ZHAO Jiachun | Kunming Institute of Precious Metals, State Key Laboratory of Advanced Technologies for Comprehensive Utilizationof Platinum Metals, Sino-Platinum Metals Co. Ltd., Kunming 650106, China | | | LI Bojie | Kunming Institute of Precious Metals, State Key Laboratory of Advanced Technologies for Comprehensive Utilizationof Platinum Metals, Sino-Platinum Metals Co. Ltd., Kunming 650106, China | | | WU Yuedong | Kunming Institute of Precious Metals, State Key Laboratory of Advanced Technologies for Comprehensive Utilizationof Platinum Metals, Sino-Platinum Metals Co. Ltd., Kunming 650106, China | | | BAO Simin | Kunming Institute of Precious Metals, State Key Laboratory of Advanced Technologies for Comprehensive Utilizationof Platinum Metals, Sino-Platinum Metals Co. Ltd., Kunming 650106, China | | | YANG Haiqiong | Kunming Institute of Precious Metals, State Key Laboratory of Advanced Technologies for Comprehensive Utilizationof Platinum Metals, Sino-Platinum Metals Co. Ltd., Kunming 650106, China | |
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| 中文摘要: |
| 对熔炼铁捕集物采用两段逆流浸出工艺富集铂族金属进行研究。结果表明，在铁捕集物粉粒度为–0.425 mm，一段浸出温度为常温，浸出硫酸浓度为1.7~1.8 mol/L，固液比 (S:L)=1:10，反应时间为0.5 h；二段浸出温度为75℃，浸出硫酸浓度为2 mol/L，S:L=1:50，反应时间为4 h。经此两段浸出后，铂族金属的平均富集倍数为70.6，铂族金属回收率大于99.8%。 |
| 英文摘要: |
| The enrichment process of platinum group metals (PGMs) in the PGM-bearing iron-trapping material was investigated by using the “two-stage countercurrent leaching” technology. When particle size of iron-trapping material was –0.425 mm, the experimental condition for the first stage leaching was room temperature, sulfuric acid concentration of 1.7~1.8 mol/L, solid and liquid ratio (S:L) of 1:10 and leaching for 0.5 h, while that for the second stage leaching was 75℃, sulfuric acid concentration of 2 mol/L, solid and liquid ratio of 1:50 and leaching for 4 h. After two stages leaching, PGMs were enriched about 70.6 times in the iron-trapping material and at least 99.8 % of PGMs could be recovered. |
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