摘要
改进后的分析方法将金精矿样品于600℃下进行恒温焙烧,减少了国标方法中还原力实验和二次试金部分所引起的工作难度,大大降低了劳动强度。将焙烧后的金精矿样品按照配料单:碳酸钠40g,二氧化硅15g,硼砂15g,氧化铅100g,可溶性淀粉5.5g,进行分析,得到的分析结果重复性好、准确度高,改进后的方法适用于金精矿中金量10~100g/t;银量100~5 000g/t的测定。
The improved analytical method which carried out the constent temperature roasting of Gold concentrate samples at 600℃, reduced the difficulty caused by the national standard method in force experi ment and the second assy, greatly reduced the labor intensity. The calcined Gold concentrate samples are in accordance with the batching list： sodium carbonate 40 g, solica 15 g, borax 15 g, Lead oxide 100 g, soluble starch 5.5 g. The result has good repeatability and high accuracy. The imprived method is suitable for the determination of the Gold concent Au： 10 - 100 g/t; Ag： 100 - 5 000 g/t .
出处
《有色矿冶》
2017年第1期58-60,共3页
Non-Ferrous Mining and Metallurgy
关键词
火试金重量法
金精矿
金
银
改进
fire assay gravimetric method
gold concentrate
gold
silver
improvement
