火试金富集-自动电位滴定法测定锡阳极泥中的银含量  

Determination of Silver Content in Tin Anode Mud by Automatic Potentiometric Titration

作　　者：史博洋 王皓莹[1] 陈殿耿[1] 

机构地区：[1]北京矿冶研究总院,北京102628

出　　处：《中国资源综合利用》2017年第9期32-34,共3页China Resources Comprehensive Utilization

基　　金：国家重大科学仪器设备开发专项"工业过程在线分析检测仪器开发与应用"(项目编号:2016YFF0102500)的阶段性研究成果之一

摘　　要：锡阳极泥是锡冶炼过程中的一种中间产物,其中含有大量的银,快速准确地测定锡阳极泥中的贵金属含量,具有重要的现实意义。本文采用火试金富集-自动电位滴定法来测定样品中的银含量,测定银的相对偏差在0.24%~0.76%,加标回收率在99.83%~100.24%。试验结果表明,该方法灵敏度高,干扰好,再现性好,可以很好地满足锡阳极泥中银的日常测定要求。Tin anodic mud is an intermediate product in the tin smelting process, which contains a lot of silver, rapid and accurate determination of tin anode mud in the precious metal content, has important practical significance. In this paper, the silver content in the sample was determined by the automatic potentiometric titration method. The relative deviation of silver was 0.24%- 0.76%, and the recoveries were 99.83%- 100.24%. The experimental results show that the method has high sensitivity, good interference and good reproducibility, and can meet the daily requirement of silver in tin anode.

关 键 词：火试金 自动电位滴定 锡阳极泥 银 

分 类 号：TF814[冶金工程—有色金属冶金] O657.31[理学—分析化学]