摘要
研究了含砷金精矿焙烧—氰化浸取金、银的新工艺方法。该方法是在含砷金精矿焙烧时加入一定量的硫酸钠,可大幅度提高金、银的氰化浸出率。试验结果表明:对于砷质量分数为0.45%的金精矿,在焙烧时加入矿样量4%～5%的硫酸钠,可使金、银的氰化浸出率分别达到95%和60%以上,比原工艺方法分别提高5.0%和40%以上。
A new method for extracting gold and silver from gold concentrate containing arsenic with roasting-cyanidation procedure was put forward. The extraction rate of gold ：and silver could be raised greatly by adding some sodium sulfate when the gold concentrate was roasted. In the experiments, the mass fraction of arsenic was 0.45 %, and about 4% ~ 5% sodium sulfate was added. As＇a result, the extraction rate of gold and silver was respectively 95% and 60%, 5.0% and 40% higher than the former ones.
出处
《黄金》
CAS
北大核心
2007年第7期38-39,共2页
Gold
关键词
含砷金精矿
焙烧
氰化
硫酸钠
金
银
gold concentrate containing arsenic
roasting
cyanidation
sodium sulfate
gold
silver
