黄金科学技术 ›› 2023, Vol. 31 ›› Issue (4): 698-706.doi: 10.11872/j.issn.1005-2518.2023.04.183
• 冶炼技术与装备研发 • 上一篇
Hu QIAN1(),Jing SUI2,Yanling ZHAO3,Zhongmin XU1()
摘要:
为实现氰化循环液中有价金属的综合回收,通过开展酸化法与SART工艺(硫化—酸化—再循环—浓缩工艺)对比试验,最终确定采用SART工艺对国内黄金行业氰化提金过程中产生的循环液进行净化处理。通过开展SART工艺控制参数的试验研究,并应用于工业化生产,实现了氰化循环在液相中锌和铜的分步回收、分离沉淀,分别产出47.45%的锌泥和54.38%的铜泥,以高品位沉淀物产品加以回收,并将弱络合氰转化成游离NaCN再回到生产系统循环利用,从而降低氰化工艺的成本。SART工艺的应用,既实现了有价金属回收,降低了成本费用,又解决了劳动就业,减轻了后续冶炼及环保压力,取得了较好的经济、环境及社会效益。
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