碱性氧化浸出废弃手机线路板中的锡、铅  

Alkaline Oxidizing Leaching of Sn,Pb in Waste Mobile Phone Circuit Board

作　　者：郑飞龙[1,2] 张承龙[1,2] 王景伟[1,2] 白建峰[1,2] 王鹏程 

机构地区：[1]上海第二工业大学环境与材料工程学院,上海201209 [2]电子废弃物资源化协同创新中心,上海201209 [3]中国电器科学研究院,广东广州510300

出　　处：《金属矿山》2017年第2期167-170,共4页Metal Mine

基　　金：国家自然科学基金项目(编号:51474146);广东省战略新兴产业项目(编号:2012A032300017);上海第二工业大学研究生基金项目(编号:A30NH1513012)

摘　　要：废弃手机线路板中含有重金属铅、镉、汞等有毒有害物质,处理不当会对环境和人体健康造成危害,但同时废弃手机线路板元器件中还含有丰富的有价金属元素。为回收废弃手机线路板元器件中的锡、铅,进行了碱性氧化浸出试验。结果表明,在氢氧化钠浓度为4 mol/L、间硝基苯磺酸钠浓度为11 g/L、浸出温度为80℃、浸出时间为60 min条件下,锡、铅浸出率分别达到99.51%和99.01%,其余主要金属浸出率均低于6%。The waste mobile phone circuit board contained heavy metals such as lead,cadmium,mercury toxic and harmful substances,which will cause harm to environment and human health if it is not properly handled,but where is also abundant valuable metallic elements in waste mobile phone circuit board. To recovery Sn,Pb in waste mobile phone circuit board,alkaline oxidation leaching experiment was conducted. Results showed that with Na OH concentration of 4 mol / L,sodium 3-nitrobenzene sulfonate concentration of 11 g / L,leaching temperature is 80 ℃,leaching time is 60 min,leaching rate of Sn and Pb reached 99. 51%,99. 01%,the rest of the main metal leaching rate were lower than 6%.

关 键 词：废弃手机线路板 间硝基苯磺酸钠 NAOH 碱性浸出 

分 类 号：TD925.6[矿业工程—选矿]