湿化学方法回收利用废旧锌锰干电池  

Recovery of used zinc-manganese batteries by wet-chemistry method

作　　者：韩小云[1] 盖利刚[1] 陈鑫成[1] 

机构地区：[1]山东轻工业学院化学工程学院山东省轻工助剂重点实验室,山东济南250353

出　　处：《山东轻工业学院学报（自然科学版）》2010年第4期62-65,共4页Journal of Shandong Polytechnic University

基　　金：山东省优秀青年科学家奖励基金(博士基金)(2009BSB02047)

摘　　要：采用湿化学方法对废旧5#华太锌锰干电池进行了回收利用。采用丙酮萃取法实现了干电池电解质中氯化铵和锌的氯化物的分离,回收了氯化铵,制备了硫化锌,确定了电解质中锌化物的含量。采用在箱式电阻炉中加热焙烧的方式,回收了二氧化锰。分别采用甲醛-酸碱滴定和高锰酸钾氧化法对回收的氯化铵和二氧化锰样品进行纯度检验,所回收的氯化铵和二氧化锰纯度高。Recovery of used zinc-manganese batteries（5# Huatai） was conducted by the wet-chemistry method.Ammonium chloride（NH4Cl） and Zn-containing compounds（ZnCl2 and Zn（NH3）2Cl2） were separated from the electrolyte by using acetone as the extracting agent.NH4Cl was prepared,and the mass content of Zn-containing compounds was determined by preparation of zinc sulfide（ZnS）.Manganese dioxide（MnO2） was recovered by calcination of the sample in a box-heater in air.The experiment showed that the purities of recovered NH4Cl and MnO2 were high,which were determined by formaldehyde-acid alkaline titration and potassium permanganate（KMnO4）-oxidation method,respectively.

关 键 词：湿化学方法 废旧锌锰干电池 丙酮萃取法 回收利用 

分 类 号：TQ041.7[化学工程]