电解锌生产原材料中锌的分析方法改进  

Improvement of Analysis Method of Zinc in Raw Materials of Electrolytic Zinc Production

作　　者：田景春 杨爱红 田江锋 宋志红 李力 TIAN Jingchun;YANG Aihong;TIAN Jiangfeng;SONG Zhihong;LI Li(Yuanling Shanneng Environmental Protection Technology Co.,Ltd.,Yuanling 419600,China;Hunan Geological Hazard Investigation and Monitoring Institute,Changsha 410000,China)

机构地区：[1]沅陵山能环保科技有限公司,湖南沅陵419600 [2]湖南省地质灾害调查监测所,湖南长沙410000

出　　处：《湖南有色金属》2023年第1期87-90,共4页Hunan Nonferrous Metals

摘　　要：以GB/T 8151.1-2012、GB/T 8151.17-2012、YS/T 1149.1-2016等标准方法为基础。试样采用盐酸-硝硫混酸溶解试样,加入氟化钾除硅,加入高氯酸消除有机质及碳质物料的影响,硫酸沉淀分离铅,溶液在加入氯化铵-氨水的情况下,形成了锌氨络合物,用氨水沉淀分离铁、锰等共存元素。在pH为5.5~6.0的缓冲溶液中以二甲酚橙为指示剂,用EDTA标准溶液滴定出锌的含量。Based on GB/T 8151.1-2012,GB/T 8151.17-2012,YS/T 1149.1-2016 and other standard methods.The sample is dissolved by hydrochloric acid and nitrosulfur mixed acid,potassium fluoride is added to remove silicon,perchloric acid is added to eliminate the influence of organic matter,sulfuric acid is used to precipitate and separate lead,and zinc amine complex is formed in the filtrate when ammonium chloride is added,and iron,manganese and other coexisting elements are separated by precipitation separation method.Using xylenol orange as indicator,titrate the zinc content with EDTA standard solution in pH 5.5 buffer solution.

关 键 词：电解锌 次氧化锌 锌的测定 方法改进 

分 类 号：TG115.31[金属学及工艺—物理冶金]