碘量法测定高铬铜精矿中铜含量  

Determination of Copper Content in High-chromium Copper Concentrate by Iodometry

作　　者：郭自娥 陈红 Guo Zi-e;Chen Hong

机构地区：[1]江西铜业集团有限公司贵溪冶炼厂,江西贵溪335424

出　　处：《化工设计通讯》2023年第7期84-85,94,共3页Chemical Engineering Design Communications

摘　　要：通过在高氯酸冒浓烟时多次加盐酸或氯化钠使铬元素生成CrCl_(3)将其除去,消除铬对铜精矿中铜含量测定的影响,适用于短碘量法测定高铬铜精矿中铜含量,该方法测定结果稳定性和准确性好,测定范围为5%~50%。In this paper,the effect of chromium on the determination of copper in copper concentrate is eliminated by adding hydrochloric acid or sodium chloride to CrCl_(3)in the smoke of perchloric acid,the method is suitable for the determination of copper content in high chromium copper concentrate by short iodometry.The determination result has good stability and accuracy,and the determination range is 5%~50%.

关 键 词：高铬铜精矿 盐酸 氯化钠 硫代硫酸钠标准滴定溶液 

分 类 号：O655.2[理学—分析化学]