废旧碱性锌锰电池粉末在盐酸中的溶解研究  

Study on the Powder of Waste Alkaline Zn-Mn Battery Dissolved in HCl

作　　者：李运清[1] 席国喜[1] 徐鹏[1] LI Yun-qing , XI Guo-xi,XU Peng （College of Chemistry and Environmental Science, Hennan Normal University ; Henan Key Laboratory for Environmental Pollution Control, Xinxiang, Henan 453007 China）

机构地区：[1]河南师范大学,化学与环境科学学院,河南省环境污染控制重点实验室,河南,新乡,453007

出　　处：《平原大学学报》2005年第6期125-127,共3页Journal of Pingyuan University

基　　金：河南省科技攻关项目

摘　　要：放电后的碱性锌锰电池所含的锌主要以氧化锌的形式存在,锰的存在形式比较复杂,废旧电池中还含有铅、汞和镉等.通过探讨盐酸浓度、液固比、溶解时间、溶解温度等对溶解率的影响,得出了废旧碱性锌锰电池粉末在盐酸中溶解的适宜条件.适宜条件为:盐酸浓度3mol/L,液固比15(质量比),反应温度60℃,反应时间1h.剩余的不溶解部分以黑色粉末形式存在,这是电池中填充的碳粉与未完全溶解的电极材料的混合物.该研究对于将废旧碱性锌锰电池高收益再生利用具有重要意义.The analysis of the electrode materials powder of waste alkaline ZnMn battery by XRD patterns and atomic absorption spectrometer showed that in the used battery, Zn mainly exists in the form of ZnO, while Mn in many complicated forms that cannot be expressed in a certain figure. After groping for the suitable conditions for the dissolution of the powder, we got the following results, hydrochloric acid concentration, 3mol/L; liquid/solid ratio, 15; dissolution temperature, 60℃; and dissolution time, 1 hour. The residue after dissolving wasa kind of black powder, which is the mixture of carbon powder, existed in the battery, and the other electrode materials. The study will be beneficial to the reuse of the spent Zn-Mn battery.

关 键 词：废旧碱性锌锰电池 盐酸 溶解率 

分 类 号：X799.3[环境科学与工程—环境工程]