低金高硫铜矿石回收金选矿试验研究  

Experimental Study on Gold Recovery from Low Gold High-Sulfur Copper Ore

作　　者：吴彩斌[1] 刘瑜[1] 周意超[1] 周斌[1] 杨昊[1] 鄢发明 邹春林[1] 

机构地区：[1]江西理工大学江西省矿业工程重点实验室,江西赣州341000

出　　处：《黄金科学技术》2014年第5期74-78,共5页Gold Science and Technology

基　　金：江西省科技计划项目"炼铜炉渣综合利用技术研究"(编号:20132BBG70016)资助

摘　　要：铜硫矿中低品位伴生金由于难富集到计价品位而常被忽略回收。针对含铜1.84%、含硫11.09%、含金0.12×10-6的低金高硫铜矿石,采用P10作为选铜金捕收剂,H2SO4作为选硫活化剂,丁黄作为选硫捕收剂,在低碱条件下,闭路试验可获得含铜20.98%、铜回收率为86.23%,含金1.2×10-6、金回收率为74.80%的铜金精矿及硫品位为48.9%、硫回收率为74.47%的合格硫精矿,实现了铜、硫、金的高效综合回收。低碱度铜硫分离工艺使活化剂用量大为减少,有利于硫的综合回收,降低了选矿成本。The low-grade associated gold in copper ore is often overlooked to recover,due to its difficult to enrich to valuation grade.According to the low gold high-sulfur copper ore,which contains 1.84% of Cu,11.09% of S,and 0.12×10-6of Au,P10 is taken as collector for copper and gold,sulfuric acid as activator and butylxanthate as collector for sulfur.A closed-circuit flotation test was conducted at a low alkalinity,which a copper concentrate are produced with content of 20.98% Cu with a recovery of 86.23% and 1.2×10-6Au with a recovery of 74.80%,and sulfur concentrate of 48.9% S with a recovery of 74.47%.Therefore,a comprehensive and efficient recovery of copper,sulfur and gold can be realized.Low alkali separation technology of copper-sulfur,which greatly reduced the amount of activator,is conducive to comprehensive recovery of sulfur and lower processing costs.

关 键 词：高硫铜矿石 低品位伴生金 P10捕收剂 低碱铜硫分离 

分 类 号：TD953[矿业工程—选矿]