中南大学
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HomeEmploying magnesium-lead melt for synergetic and selective extraction of copper from copper-cobalt alloy
Release time:2022-12-10
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- DOI number:
- 10.1016/S1003-6326(22)66031-X
- Journal:
- Transactions of Nonferrous Metals Society of China
- Abstract:
- This research aims to extract Cu from Cu-Co alloy with high efficiency and selectivity by employing binary Mg-Pb melt. The optimal conditions for the extraction of Cu were determined. The results showed under optimal conditions, 96.5% of Cu in the Cu-Co alloy could be selectively extracted after treatment at 800 °C for 1 h, with the extraction rates of only 0.2% Fe, 0.6% Co, and 1.4% Si. The dissolution mechanism involved the counter diffusion of Mg/Pb and Cu across the diffusion zone of the Cu-Co alloy, and Mg in the binary Mg-Pb melt played a major role in the selective dissolution of Cu, especially at the dissolution forefront. The rate-controlling step of the extraction was dominated by the interfacial reaction.
- Indexed by:
- Journal paper
- Volume:
- 32
- Issue:
- 10
- Page Number:
- 3444-3458
- Translation or Not:
- no
- Date of Publication:
- 2022-12-05
- Included Journals:
- SCI