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| Production of Cathode Copper from Gallium and Germanium Leachate by Extraction-Cyclone Electrodeposition Process |
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Received:March 08, 2022
Revised:March 28, 2022
Accepted:March 31, 2022
Published Online:June 17, 2022
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| DOI：doi：10.3969/j.issn.1007-7545.2022.07.002 |
| KeyWord:solvent extraction; cyclone electrodeposition; leachate containing gallium and germanium; cathode copper; titanium-based lead dioxide anodes |
| Author | Institution |
| LIAO Wen-xun |
中金岭南丹霞冶炼厂 |
| ZHANG Wei |
中金岭南丹霞冶炼厂 |
| GONG Xiao-dan |
中金岭南丹霞冶炼厂 |
| WU Cai-gui |
中金岭南丹霞冶炼厂 |
| XU Bo |
中金岭南丹霞冶炼厂 |
| HU Li |
中金岭南丹霞冶炼厂 |
| ZHANG Jun-feng |
中金岭南丹霞冶炼厂 |
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| Abstract: |
| Industrial application of production of cathode copper from gallium and germanium leachate by solvent extraction-cyclone electrodeposition process in a smelter was introduced. During copper solvent extraction and separation stage, the technical problems such as low copper extraction rate, slow phase separation and degradation of extraction organic phase were effectively solved by optimizing acidity of stripping solution and extraction temperature, monitoring the content of harmful impurities in leachate, and adding an active clay organic phase purification device. During cyclone electrodeposition production, the production problems such as poor quality of cathode copper and high loss of titanium base metal anode was solved through substitution of titanium-base lead dioxide anode to titanium-base precious metal anode, substitution of dissolved air pump gas float clarify oil removal device to two-stage fiber modified material oil removal device, accuracy control of copper ion concentration electric at the end of electrodeposition, and optimization gul glue addition and temperature of copper electrodeposition circulating solution. The quality of cathode copper and the life of anode are significantly improved. |
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