期刊
HYDROMETALLURGY
卷 101, 期 1-2, 页码 48-57出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.hydromet.2009.11.019
关键词
Copper cyanide recovery; Activated carbon; Ion-exchange resins
资金
- Australian Government's Cooperative Research Centres Program
- Minerals Down
The use of activated carbon and ion-exchange resins for recovering copper cyanide from gold leach solutions is compared in detail. When using activated carbon, the overall cyanide-to-copper ratio should be reduced to similar to 2 to achieve the most effective adsorption. This can be accomplished by dissolving metallic copper into the leach solution. However when using ion-exchange resins to recover the copper, it is not necessary to reduce the overall cyanide-to-copper ratio as the Cu(CN)(3)(2-) Complex, which is most prevalent in leach solutions. can strongly adsorb onto the resin. Whilst the elution of Copper from carbon is relatively simple, the elution of copper from the resins is challenging. Among a variety of elution systems investigated, a cyanide soak followed by NaCl elution appears to be the most elegant, with the advantage of no regeneration of the eluted resin being needed. Two closed loop elution flowsheets have been investigated to recover copper from ion-exchange resin, with each having a different impact on the removal of thiocyanate from the leach solution by the resin. (C) 2009 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据