摘要
火试金法是铜阳极泥与适量的熔剂熔融,以铅捕集金、银铅扣。铅扣在灰皿中灰吹,得到金银合粒,合粒用硝酸溶解,得到金粒。本文研究了分析过程中残留杂质的测定,合粒用硝酸溶解使金与银及合粒中残留的微量杂质分离,用ICP-AES测定分金液中杂质量,金粒加银包铅灰吹、分金得到纯正的金粒。
Fire assay is a copper anode mud with the amount of flux melting, lead to capture gold and silver lead button. Lead button blowing in the cupel, gold and silver alloy grain, alloy was dissolved in nitric acid, get the gold particle. This paper studied the determination of residual impurities in the analysis process, alloy was dissolved in nitric acid to gold and silver and trace impurities in the residual particle separation, determination of impurities in liquid gold ICP-AES, gold particles, and silver lead cupelling gold obtain pure gold particles.
出处
《世界有色金属》
2017年第8期220-221,共2页
World Nonferrous Metals
关键词
铜阳极泥
金、银
火试金法
二次试金
Copper anode slime
gold and silver
fire assay
two assay
