摘要
含铜金精矿氰化后的贫液 ,总氰和杂质离子含量不断升高 ,原设计流程使用乙硫胺脂萃取回收氰化物。运行一年多来指标不稳定 ,工作条件差 ,后改为酸化法回收并且滤液全部返回循环使用 ,不但回收铜等金属与氰化钠 ,保持循环的整个体系杂质元素的水平 。
The barren liqor resulted from gold concentrate containing Cu after cyaniding, the content of cyanide and impurity ion of which increases continuously. The former designed workflow uses C8H18OH to extract and reclaim cyanide. After one year's operation, the index is unstable and the effect is poor. While utilizing acidation to recover cyanide and the filtrate is fully recycled, not only Cu and other metals plus NaCN are recovered so as to keep the level of the impurity element in the recycle system, but also the economic benefits are remarkable.
出处
《有色矿冶》
2001年第6期21-24,共4页
Non-Ferrous Mining and Metallurgy
关键词
金精矿氰化
贫液
萃取法
酸化法
废水处理
金矿床
cyaniding of gold concentrate
barren liqor
extraction
acidation
experience
