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| Silver Extraction and Silver Chloride Preparation from Gold Separating Residue |
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Received:May 23, 2016
Revised:May 25, 2016
Accepted:May 30, 2016
Published Online:October 21, 2016
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| DOI：doi：10.3969/j.issn.1007-7545.2016.11.010 |
| KeyWord:gold separating residue; sodium sulfite; silver chloride; leaching |
| Author | Institution |
| Wang Qiu-yu |
江西铜业集团公司 |
| He Qiang |
江西铜业集团公司 |
| Wang Ri |
江西铜业集团公司 |
| Hu Yi-wen |
江西铜业集团公司 |
| Sun Jing-tao |
江西铜业集团公司 |
| Lyu Xi-cong |
江西铜业集团公司 |
| Huang Shao-yong |
江西铜业集团公司 |
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| Abstract: |
| Process of silver extraction and silver chloride preparation from gold separating residue was proposed. Leaching rate of silver is 98.3% under the optimum conditions including concentration of sodium sulfite of 220 g/L, pH value of 8.0, temperature of 40 ℃, leaching time of 60 min, and L/S=10. Silver chloride with purity of 99.9% and silver recovery of 98.2% is prepared from leaching solution when controlling pH value at 4.0 by adding sulfuric acid. |
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