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| Experimental Study on Ammonia Leaching of Waste Copper Smelting Slag Flotation Tailings |
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Received:July 06, 2020
Revised:July 20, 2020
Accepted:July 21, 2020
Published Online:October 31, 2020
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| DOI：doi：10.3969/j.issn.1007-7545.2020.11.002 |
| KeyWord:waste copper smelting slag flotation tailings; ammonia leaching; particle size; leaching rate |
| Author | Institution |
| Wang Pan |
1. 中南大学 资源加工与生物工程学院 |
| Huang Hong-jun |
1. 中南大学 资源加工与生物工程学院 |
| Lai Xiang-sheng |
1. 中南大学 资源加工与生物工程学院 |
| Peng Jiao |
1. 中南大学 资源加工与生物工程学院 |
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| Abstract: |
| Copper was leached from waste copper smelting slag flotation tailings by ammonia leaching. The results show that copper leaching rate is 53.20% and copper grade in leaching residue is 0.39% under the conditions including NH3?H2O concentration of 2 mol/L, L/S of 7 mL/g, temperature of 30 ℃, agitation speed of 400 r/min, and reaction time of 60 min. The size and shape of ore particles do not change greatly before and after leaching, but numbers of fine particles in surface of coarse particles of ores reduce after leaching. |
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