含碘废液的回收研究  

Study on Iodine Recovery from Laboratory Wastes

作　　者：万东北[1] 张勇[1] 谢步云[1] 林慧[1] 

机构地区：[1]赣南师范学院化学与生命科学学院,江西赣州341000

出　　处：《赣南师范学院学报》2007年第3期79-81,共3页Journal of Gannan Teachers' College(Social Science(2))

基　　金：2006年赣南师范学院开放实验室资助项目

摘　　要：研究从实验室含碘废液中提取碘的2种方法.还原-氧化法:利用氧化还原反应、采取分离、萃取、升华等回收废碘液的工艺.还原-沉淀法:利用氧化—还原反应,将含碘废液中的I2还原为I-,浓缩后加入CuSO4和Na2SO3,使I-全部转化为CuI沉淀,然后加浓硝酸氧化成单质I2,用升华方法将碘提纯的工艺.Two methods of iodine extraction from laboratory waste liquid were investigated . Reduction-oxidation method：redox reaction was employed to recover iodion after separation,extraction and sublimarion processes. Reduction-precipitation method：I2 was first reduced to I-by redox reaction,followed by solution concentration. Then CuSo4 and Na2So3 were used to produce CuI precipitate which was further oxidized to 12 by nitric acid. purification of iodine was carried out by sublimation.

关 键 词：废碘液 碘 氧化还原 回收 

分 类 号：O61-3[理学—无机化学]