提高内蒙古某铜矿伴生银回收率试验研究  

Experimental Study on Improving the Recovery Rate of Associated Silver in a Copper Mine in Inner Mongolia

作　　者：秦贵杰 刘学勇 孟宪瑜 QIN Gui-jie;LIU Xue-yong;MENG Xian-yu(Shenyang Research Institute of Nonferrous Metals Co.,Ltd.,Shenyang 110141,China)

机构地区：[1]沈阳有色金属研究院有限公司,辽宁沈阳110141

出　　处：《有色矿冶》2024年第2期27-30,共4页Non-Ferrous Mining and Metallurgy

摘　　要：内蒙古某铜矿现场铜浮选采用一段磨矿,一次粗选、二次扫选、三次精选的工艺流程,铜银精矿含铜16.05%,含银788.40g/t,铜回收率89.19%,银回收率77.27%。通过工艺矿物学研究和浮选试验研究,确定一段磨矿,二次粗选、二次扫选、一精再磨、三次精选的工艺流程,最终闭路试验可获得铜银精矿含铜16.51%,铜回收率90.06%,含银852.30 g/t,银回收率81.49%,银回收率提高了4.22%,达到了提高铜银精矿中伴生银回收率的目的,伴生银得到充分综合回收。A copper mine in Inner Mongolia adopts a processe of one-stage grinding,one rough selection,two sweeping selections,and three selections.The copper silver concentrate contains 16.05%copper,788.40 g/t silver,and a copper recovery rate of 89.19%and a silver recovery rate of 77.27%.Through the study of process mineralogy and flotation experiments,a process flow of one stage grinding,two stage rough selection,two stage scanning selection,one stage fine grinding,and three stage selection was determined.The final closed circuit test can obtain a copper silver concentrate with a copper content of 16.51%,a copper recovery rate of 90.06%,a silver content of 852.30 g/t,a silver recovery rate of 81.49%,and a silver recovery rate of 4.22%,achieving the goal of improving the recovery rate of associated silver in copper silver concentrate,and achieving comprehensive recovery of associated silver.

关 键 词：铜矿 伴生银 二次粗选 精矿再磨 银回收率 

分 类 号：TD952[矿业工程—选矿]