Silver leaching with the nitrite-copper novel system: A kinetic study
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- 作者：G. Alvarado-Mací ; asa ; J.C. Fuentes-Aceitunoa ; juan.fuentes@cinvestav.edu.mx" class="auth_mail" title="E-mail the corresponding author ; F. Nava-Alonsoa ; b ; Jae-chun Leec
- 关键词：Sodium nitrite ; Silver nitrite ; Copper nitrite complex ; Silver leaching
- 刊名：Hydrometallurgy
- 出版年：2016
- 出版时间：March 2016
- 年：2016
- 卷：160
- 期：Complete
- 页码：98-105
- 全文大小：1297 K
文摘
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Nitrite-copper is a totally new and promising silver leaching system.
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NO2–Cu2 + system is capable of complexing silver metal without thiosulfate.
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Nitrite ions act as a complexing as well as oxidizing agent.
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Leaching is controlled by chemical reaction of lixiviant at the Ag surface.
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About 96% silver can be recovered at 55 °C and 6 h.