Employing magnesium-lead melt for synergetic and selective extraction of copper from copper-cobalt alloy

Release time:2022-12-10

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