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| Targeted Recycle of Metals Successively from High-Acid and Low-Copper Raffinate |
| Received:September 17, 2021 Revised:September 22, 2021 |
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| DOI：doi：10.3969/j.issn.1007-7545.2022.02.003 |
| KeyWord:raffinate; high-acid and low-copper; successively; targeted recycle; Cu; Zn; Al |
| Author | Institution |
| WANG Hong |
低品位难处理黄金资源综合利用国家重点实验室 |
| WU Zeng-ling |
低品位难处理黄金资源综合利用国家重点实验室 |
| JI Chang-qing |
低品位难处理黄金资源综合利用国家重点实验室 |
| YANG Hong-xiang |
紫金矿业集团股份有限公司 |
| ZHU Feng |
紫金矿业集团股份有限公司 |
| ZHONG Ping-li |
低品位难处理黄金资源综合利用国家重点实验室 |
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| Abstract: |
| High-acid and low-copper raffinate is produced in bioleaching system of low-grade sulfide copper mine. Iron can be effectively separated with other metals through control of pH value according to differences of precipitation behavior of metals in different pH value range. According to differences of solubility of metal sulfide, copper and zinc can be recovered successively through sulfuration. Aluminum can be recovered by neutralization. Copper, zinc and aluminum was targeted recycled successively with comprehensive recovery of 78.8%, 76.7% and 74.3% respectively. After treatment, the liquid can be discharged which meets the requirements of emission Standards for Pollutants from Copper, Nickel and Cobalt Industries (GB 25467—2010). |
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