西北某含金氧化矿选金试验研究  

Experimental Study on Gold Recovery from Gold-bearing Oxide Minerals

作　　者：苗培[1] 

机构地区：[1]西北矿冶研究院矿物工程研究所,甘肃白银730900

出　　处：《甘肃冶金》2016年第4期9-11,共3页Gansu Metallurgy

摘　　要：针对西北某含金氧化矿中自然金多赋存在褐铁矿矿物微裂隙中,少量嵌布在石英或黄铁矿晶粒中,嵌布粒度细等特点,试验分别进行浮选和全泥氰化浸出方案对比。试验结果表明,采用浮选法金回收率仅38.38%,不能有效回收该矿石中自然金。采用氰化浸出法,金浸出率为77.03%,较好的实现了该含金氧化矿中金的高效回收。Due to natural gold occurs primarily in the micro cracks of limonite, with a few occurrence of fine dissemination embedded in pyrite and quartz, it becomes hard to recover for a certain gold bearing oxide ore in Northwest. Experiments were carried out to compare the flotation process with the complete mud cyaniding schemes. The results showed that the flo- tation method could not effectively recovery gold from this minerals and gold recovery was only 38.38%. Whereas by using the complete mud cyaniding method, gold Leaching rate was 77.03%, better realizing the efficient recovery of gold from this gold-bearing oxide minerals.

关 键 词：含金氧化矿 浮选 细粒级嵌布 氰化浸出 

分 类 号：TD92[矿业工程—选矿]