从低品位含金尾矿中回收金的堆浸参数研究

发布时间：2018-06-10 12:07

  本文选题：有色金属冶金 + 含金尾矿　； 参考：《贵金属》2017年02期

【摘要】：辽宁丹东某铜矿尾矿金品位为1.35 g/t,属低品位难处理金矿。采用柱浸模拟现场堆浸工艺条件,对工艺参数进行了模拟试验。条件实验表明,在浸出剂氰化钠浓度为0.10%、石灰水喷淋调整浸出液pH=11、矿层高度305 mm、在10℃以上浸出120 h,金浸出率为58.14%。放大试验延长浸出时间至480 h,金浸出率达到70%左右。获得的工艺参数可为堆浸生产提供指导。
[Abstract]:The tailing gold grade of a copper mine in Dandong, Liaoning Province, is 1.35 g / t, which is a low grade refractory gold deposit. The process parameters were simulated by column leaching simulation in situ heap leaching process conditions. The experimental results show that the leaching rate of gold is 58.14 when the concentration of sodium cyanide is 0.10, the pH of leaching solution is adjusted by lime water spraying, the height of ore bed is 305 mm, and the leaching time is more than 10 鈩，

本文编号：2003167