锌杂质在柠檬酸/柠檬酸钠体系回收废铅膏中的迁移  

Migration of zinc impurities in citric acid/sodium citrate system used to leach the recycled waste lead paste

作　　者：高林霞[1,2] 刘建文[3] 朱新锋[4] 李磊[1] 杨家宽[1] 

机构地区：[1]华中科技大学环境工程与环境学院,湖北武汉430074 [2]湖北工业大学轻工学部资源与环境学院,湖北武汉430068 [3]湖北大学化学和化工学院,湖北武汉430062 [4]河南城建学院,河南平顶山467000

出　　处：《蓄电池》2014年第1期3-6,共4页Chinese LABAT Man

基　　金：华中科技大学自主创新研究项目重点基金(Z2009021);国家自然科学基金资助项目(50804017);教育部新世纪人才支持计划(NCET-09-0392);湖北省自然科学基金重点项目(杰出青年基金)(13105043);武汉市科技攻关计划(20120321100)

摘　　要：本实验采用柠檬酸/柠檬酸钠体系浸出回收铅膏,考察杂质锌在浸出过程中的迁移。模拟铅膏中掺入了氧化锌,锌的质量分数为1%、0.5%、0.1%、0.05%和0.01%。随锌含量的减少,残留在柠檬酸铅、铅粉中的锌量越少。掺锌量为0.01%时,铅粉中锌的质量分数降到0.000 43%。实际铅膏也进行了浸出、焙烧实验,铅粉中锌的质量分数减少到了0.000 13%,远远小于GB/T 469-2005中对锌的要求。The paper studied the migration of zinc impurities in the process of citric acid/sodium citrate leaching the recycled lead paste. The zinc content was 1%, 0.5 %, 0.1%, 0.05 % and 0.01% respectively in the simulated lead paste doping zinc oxide. With the decrease of doped zinc content, the residuai zinc content in lead citrate and lead powder was reduced, when the doped zinc content was 0.01%, the zinc content in the leady oxide was reduced to 0.000 43 %. After leaching and roasting the actual lead paste, the content of zinc in leady oxide was reduced to 0.000 13 % which was enough to meet the standard of GB/T 469-2005.

关 键 词：柠檬酸 柠檬酸钠 锌 铅粉 模拟铅膏 柠檬酸铅 

分 类 号：TM912.1[电气工程—电力电子与电力传动]