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| Study on Recovering Silver and Lead from Slag after Silver Extraction of Copper Anode Slime |
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Received:January 19, 2021
Revised:January 25, 2021
Accepted:February 01, 2021
Published Online:May 20, 2021
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| DOI：doi：10.3969/j.issn.1007-7545.2021.06.012 |
| KeyWord:residue after silver extraction; dissolution; nitric acid; silver precipitation; lead precipitation |
| Author | Institution |
| LIU Yong-ping |
贵溪冶炼厂 |
| SUN Jing-tao |
江西鹰潭贵溪冶炼厂 |
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| Abstract: |
| Silver and lead were recovered from residue after silver extraction of copper anode slime by dissolution with sodium hydroxide solution, leaching with nitric acid solution, silver precipitation, and lead precipitation. The results show that addition of formaldehyde can effectively reduce silver loss. Mass fraction of silver chloride in silver chloride precipitation is 96.21% and mass fraction of lead in lead sulfate precipitation is 68.24%. This process has the advantages of easy operation and low cost. |
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