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| Study on Hydrometallurgical Extraction of Lead-Silver Residue from Zinc Industry |
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Received:January 09, 2018
Revised:January 12, 2018
Accepted:January 15, 2018
Published Online:May 17, 2018
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| DOI：doi：10.3969/j.issn.1007-7545.2018.06.001 |
| KeyWord:lead and silver slag; chlorination leaching; lead; silver |
| Author | Institution |
| zhouqifan |
北京矿冶研究总院 |
| jiangkaixi |
北京矿冶研究总院 |
| wanghaibei |
北京矿冶研究总院 |
| wangyufang |
北京矿冶研究总院 |
| xueyufei |
北京矿冶研究总院 |
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| Abstract: |
| Based on analysis of composition and chemical phases, effects of temperature, leaching time, sodium chlorate concentration, and acidity on lead and silver extraction from lead-silver residue produced in hydrometallurgical zinc refinery were investigsted. The results show that leaching ratio of lead and silver is 94.43% and 91.48% respectively, and lead and silver content in residue is 0.9% and 84.4 g/t respectively under the optimum conditions including NaCl concentration of 300 g/L, CaCl2 concentration of 50 g/L, initial HCl concentration of 0.4 mol/L, leaching temperature of 85 ℃, leaching time of 2.5h, and L/S=8. |
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