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| Study on Production of Cathode Copper by anode frame electrolysis die Compacted Copper Particles process |
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Received:December 17, 2020
Revised:January 04, 2021
Accepted:January 12, 2021
Published Online:August 18, 2021
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| DOI： |
| KeyWord:copper particles; die compaction; electrolysis; |
| Author | Institution |
| zhangfeng |
Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction, Ministry of Education;National Joint Engineering Research Center of Energy Saving and Environmental Protection Technology in Metallurgy and Chemical Engineering Industry;Faculty of Metallurgical and Energy Engineering, State Key Lab. Complex Nonferrous Metal Resources Clean Utilization, |
| wanghua |
Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction, Ministry of Education |
| wangyu |
Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction, Ministry of Education |
| wangheng |
Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction, Ministry of Education |
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| Abstract: |
| The direct electrolytic recovery of copper from copper particles is a recovery method of high copper recovery rate and high current efficiency. According to the merits and demerits of the direct electrolysis process of copper particles, the experiment of producing cathode copper by anode frame (titanium basket) electrolysis die-compacted copper particles process was proposed and carried out. The results show that increasing the electrolyte temperature will accelerate the cathodic current efficiency and decrease cathode copper quality. Adjusting the electrolyte circulation speed at higher circulation speeds, larger number copper powder particles were brought to the cathode surface, causing the quality of the cathode copper to decrease. Increase cathode current densities have a negative effect on the quality of cathode copper because the copper powder particles were large produced and gather in the anode frame. Under the conditions of electrolyte temperature 40 ℃, electrolyte circulation speed 14 L/h, cathode current density 200 A/m2, electrolysis for 48 h can obtain cathode copper plate with dense surface. The cathode current circuit efficiency is 93.15%, and the cathode copper deposition rate is 1.39 g/h. |
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