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| Study on optimization of electrodeposition preparation process of high purity nickel powder |
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Received:August 02, 2024
Revised:September 05, 2024
Accepted:September 11, 2024
Published Online:March 24, 2025
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| DOI： |
| KeyWord:high-purity nickel powder; electrodeposition; dendrite; impurity; preparation technology |
| Author | Institution |
| chixiaopeng |
Zijin College of Geology and Mining Fuzhou University |
| huangshaoyi |
Zijin College of Geology and Mining Fuzhou University |
| chenjianghao |
Zijin College of Geology and Mining Fuzhou University |
| wengwei |
Zijin College of Geology and Mining Fuzhou University |
| chenjunnan |
Zijin College of Geology and Mining Fuzhou University |
| tanwen |
Zijin College of Geology and Mining Fuzhou University |
| zhongshuiping |
Zijin College of Geology and Mining Fuzhou University |
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| Abstract: |
| This paper focuses on the electrodeposition preparation of nickel powder and investigates the impact of six factors, including current density, nickel ion mass concentration, pH, NH4Cl mass concentration, temperature, and powder taking time, on the electrodeposition process of nickel powder. The results showed that when the current density was 3000 A/m2, the mass concentration of Ni2+ in the electrowinning solution was 5 g/L, the pH value was 5, the temperature was 40°C, the mass concentration of the additive NH4Cl was 10 g/L, the electrode plate distance was 30 mm, and the powder taking time interval was 120 s, the nickel powder obtained from the experiment has a concentrated particle size distribution, it is dendritic and has a purity of 99. 87%. Under these conditions, the electrolyte containing the impurity ions Fe3+ and Cu2+ used in industrial production was simulated for the experiments, and a dendritic nickel powder with 99.84% purity was obtained. |
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