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| Controlling of Silver Content in Cathode Copper Produced by Electrolysis of High Silver-bearing Copper Anode Plate |
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Received:October 27, 2021
Revised:October 28, 2021
Accepted:November 06, 2021
Published Online:February 18, 2022
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| DOI：doi：10.3969/j.issn.1007-7545.2022.03.011 |
| KeyWord:cathode copper; electrolysis; silver; control |
| Author | Institution |
| CHEN Yan-jin |
紫金铜业有限公司 |
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| Abstract: |
| When silver content in cathode copper is more than 10 g/t, it will causes loss of silver, and bring adversely affects on downstream copper deep processing because silver in cathode copper is often a harmful impurity. Silver content in cathode copper can be effectively controlled below 8 g/t, and average silver content in cathode copper can be reduced to 6.86 g/t through analysis of electrolytic production and adjustment of production process, such as optimization and adjustment of Cl- content in electrolyte, additive ratio, current density, and electrolyte temperature. According to annual output of cathode copper of 300 kt, the annual economic loss can be saved 3.60 million yuan. |
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