期刊
INDUSTRIAL ELECTROCHEMISTRY AND ELECTROCHEMICAL ENGINEERING GENERAL SESSION
卷 85, 期 4, 页码 59-67出版社
ELECTROCHEMICAL SOC INC
DOI: 10.1149/08504.0059ecst
关键词
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资金
- Academy of Finland (NoWASTE) [297962]
- EU Framework Program for Research and Innovation Horizon 2020 (MSCA-ETN SOCRATES) [721385]
- Finnish Steel and Metal Producers (METSEK-project)
The recovery of precious metals (Ag and Au) by electrodeposition-redox replacement (EDRR) method was studied in three different solutions: sulfate based Zn-Fe-Ag solution, chloride based Cu-Fe Au solution and industrial multi-metal chloride solution. The common factor to these solutions is that the base metal (Zn or Cu) is present in g/L scale while the precious metal is present in ppm or lower level. The results showed that the presence of impurity Fe (in g/L scale) decreases the recovery efficiency of precious metals but at the same time, it may lead to selective dissolution of the base metal, resulting in the higher purity of the precious metal deposit. Moreover, a successful deposition of Au on carbon nanotube (CNT) films from industrial multi-metal solution was demonstrated.
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