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| Research and Application of Quality Control Technology for Mulliashi Cathode Copper |
| Received:July 02, 2024 Revised:July 23, 2024 |
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| DOI：doi：10.20237/j.issn.1007-7545.2025.01.005 |
| KeyWord:Oxidized copper ore; branch acid addition; leach solution purification; load organic phase; purification and decontamination; copper cathode |
| Author | Institution |
| LIU Yaping |
中色卢安夏铜业有限公司 |
| WANG Jingjun |
中色卢安夏铜业有限公司 |
| ZHANG Liqiang |
中色卢安夏铜业有限公司 |
| LIU Ziliang |
中色卢安夏铜业有限公司 |
| YIN Jun |
中色卢安夏铜业有限公司 |
| JIA Lina |
中色卢安夏铜业有限公司 |
| LI Yang |
北京科技大学 土木与资源工程学院 |
| KOU Jue |
北京科技大学 土木与资源工程学院 |
| SUN Chunbao |
北京科技大学 土木与资源工程学院 |
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| Abstract: |
| The properties of Mulliashi copper oxide ore in Zambia are complex, which is treated by sulfuric acid leaching-extraction-electrodeposition process. In order to reduce the influence of impurities on electrodeposition operations and effectively improve the quality of cathode copper products, technological innovation research and application have been carried out in multiple operating systems such as leaching, extraction and electrodeposition, including branch acid addition in stirred leaching, multi-stage purification of leaching solution, efficient extraction, and impurity removal by loaded organic phase purification. Results indicates that through a variety of technical innovation and transformation, the Mulliashi hydrometallurgical plant reduces the content of harmful ions and flocculants from the production source and process. This has minimized the influence of impurities on electrodeposition operations, achieving an increase in current efficiency to over 96%, raising the average purity of cathode copper products to 99.9988%, with more than 50% of cathode copper purity exceeding 99.9990%. These advancements have effectively achieved the goal of enhancing the quality and efficiency of the enterprise. |
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