废旧锌锰电池回收与利用研究

Study on Recovery and Utilization of the Wasted Zn-Mn Battery

采用人工分选回收技术回收废旧锌锰电池的有用成分氯化锌、氯化铵及二氧化锰,并利用二氧化锰在熔融状态下与氢氧化钾和氯酸钾混合物反应制备锰酸钾,向锰酸钾溶液中通入二氧化碳最终制备出产品———高锰酸钾,探求了最佳反应物量(MnO2,KClO3,KOH的用量比为3.0∶2.5∶4.5),且通过分光光度法测定了所得高锰酸钾的平均纯度为52.1%。

The wasted Zn-Mn batteries are disposed by the hydrometallurgy recycling technology for effectivecomponents draw ZnCl2, NH4Cl and MnO2. Preparation K2MnO4 with MnO2 and mehing state KClO3 and KOH, entering CO2 to the K2MnO4 solution prepare out product-KMnO4. This paper sought the best reactant amount. The average purity of KMnO4 is 52.1% that obtained by spectrophotography.