|
| Enhancement mechanism of high strength circulating magnetic field on electrodeposition of low concentration copper ion solutionZHENG Benming1, 2, 3 CHEN Yanguang1,* QIAN Guoyu2,3 GONG Xuzhong2,3 WANG Zhi2,3 |
|
Received:April 02, 2021
Revised:April 10, 2021
Accepted:April 13, 2021
Published Online:June 29, 2021
|
| View Full Text View/Add Comment Download reader |
| DOI： |
| KeyWord:lithium battery recovery; hydrometallurgical extraction; low concentration copper ion solution; circulating magnetic field; electrodeposition |
| Author | Institution |
| zhengbenming |
School of Chemistry and Chemical Engineering, Northeast Petroleum University |
| chenyangaung |
School of Chemistry and Chemical Engineering, Northeast Petroleum University |
| qianguoyu |
Institute of Process Engineering, Chinese Academy of Sciences |
| gongxuzhong |
Institute of Process Engineering, Chinese Academy of Sciences |
| wangzhi |
Institute of Process Engineering, Chinese Academy of Sciences |
|
| Hits: 2414 |
| Download times: 1038 |
| Abstract: |
| In the process of hydrometallurgy recovery of cathode materials for lithium batteries, the low concentration of copper ions in the leaching solution of multi metals pollutes the cathode materials. It often leads to the common problems of complex valuable metal recovery process and secondary waste residue pollution. In order to solve the problem of low deposition efficiency caused by limited reaction and transfer in low concentration copper ion electrodeposition process Fourier transform infrared spectroscopy (FT-IR), Raman spectroscopy (Raman) and ultraviolet visible spectroscopy (UV-Vis) were used to detect the microstructure. The enhancement mechanism of high strength cyclic magnetic field on electrodeposition of low concentration copper ion solution was studied. The results show that the cyclic magnetic field can improve the ion transfer rate and electrodeposition efficiency of the diffusion layer by regulating the structure and morphology of water clusters and hydrated particles. In the 3 h pre magnetization time, the magnetic field intensity increases from 0 T to 3 T, the ability to destroy DDAA(double donor-double acceptor) type hydrogen bond structure increases, the viscosity ratio (η/η0) of 0.01 mol/L CuSO4 solution to water decreases from 1.0197 to 0.9614, and the electrodeposition efficiency increases by 12.9%. Under 3T high magnetic field intensity, the viscosity ratio of 0.01 mol/L CuSO4 solution to water (η/η0) decreased from 1.0197 to 0.9486, and the electrodeposition efficiency increased by 17.6%. |
| Close |
|
|
|