世界有色金属Issue(4)：71-73,3.
火试金法检测石墨坩埚渣中的金
Fire Assay Detects Gold in Graphite Crucible Slag
路昊霖 1王耀杰 1杨金鹏 1冯桂坤 2王清1
作者信息
- 1. 山东招金金银精炼有限公司,山东 招远 265400||中恒诺贵金属检测有限公司,山东 招远 265400
- 2. 山东招金金银精炼有限公司,山东 招远 265400
- 折叠
摘要
Abstract
The scrapped graphite crucible is crushed,mixed,fractionated and ground to obtain a sample that meets the testing requirements.Weigh a certain amount of sample,adjust the silica acidity of the material by batching,and add a certain amount of potassium nitrate to eliminate the excessive reducing force in the sample.The material is melted at high temperature in the crucible to obtain a lead buckle containing precious metals,and the obtained lead buckle is ash blown in an oxygen-rich state,and the lead and base metals are oxidized and separated from precious metals such as gold and silver to obtain gold and silver alloy particles containing precious metals.Gold flakes are obtained by nitric acid separation,and the gold content in the sample is calculated by gravimetric method.关键词
石墨坩埚渣样/高温熔融/灰吹/硝酸分金/计算金含量Key words
Graphite crucible slag sample/High temperature melting/Ash blowing/Nitric acid dissolves silver/Calculate the gold content分类
化学化工引用本文复制引用
路昊霖,王耀杰,杨金鹏,冯桂坤,王清..火试金法检测石墨坩埚渣中的金[J].世界有色金属,2024,(4):71-73,3.
