【摘要】 为了制定从废旧锌锰电池中制得高等级二氯化锰的生产工艺,需要对废旧锌锰电池氧化锰粉中锰含量进行准确测定。本文以硝酸银作催化剂,采用亚硝酸钠 亚砷酸钠滴定法测定锰含量,并对测定中有关溶样方法、冒烟程度、氧化效果等条件进行了试验。试验结果表明:该方法操作简便、快速准确,锰回收率为96.8%～101.9%。更多还原

【Abstract】 In order to work out the technology of the higher grade manganese chloride tetrahydrate from waste Zinc-Manganese batteries,manganese content in it must be detemeined accurately.A method is used to deter mine manganese content by titration of NaNO₃-Na₃AsO₃ solution and with AgNO₃ as catalyst.Meamwhile,the solution of the sample,smoking and oxidation degree are tested.The results shown this method is convenient and rapid and exact.Recoveries of the manganese are in the range of 98.6%～101.9%.更多还原