火试金重量法测定载金炭中的金量  

Determination of gold content in gold-bearing carbon by fire assay gravimetric method

作　　者：马丽军[1] 陈永红[1] 腾飞[1] 芦新根[1] 

机构地区：[1]长春黄金研究院

出　　处：《黄金》2013年第11期68-71,共4页Gold

摘　　要：建立了样品焙烧处理—火试金重量法测定载金炭中的金量;经过了一系列条件实验,分别确定了称样量范围、焙烧温度、配料、熔样温度、分金时间、分金酸度及金银质量比例等最佳实验条件。在最佳实验条件下,该方法加入标准物质的回收率为99.85%～100.1%,与原子吸收光谱法对比,体现了更好的重复性和再现性。在载金炭交易中,该方法被推荐为仲裁分析方法。Determination of gold content in gold-bearing carbon by sample roasting-fire assay gravimetnc method process is established. Via a series of condition experiments, optimal conditions of sample weight range, roasting tem- perature, proportioning ,fusion temperature, parting time, parting acidity and gold-silver mass ratio and so on are re- spectively determined. Under such optimal conditions ,recovery rate is 99.85 % - 100.1% with the addition of stand- ard substance, and compared to AAS, the method shows better repeatability and reproducibility. In the exchange of gold-bearing carbon, the method is recommended as the arbitration analysis method.

关 键 词：载金炭 金 火试金 重量法 

分 类 号：TD926.3[矿业工程—选矿]