铈盐法脱除氧化锌烟尘净化液中的F^-  

Removal of F^- From Leaching Solution of Zinc Oxide Dust Using Ce-based Compounds

作　　者：单丽梅[1] 李志宏[1] 王泽忠[1] 刘国标[2] 

机构地区：[1]四川工程职业技术学院,四川德阳618000 [2]四川大学材料科学与工程学院,四川成都610064

出　　处：《湿法冶金》2014年第2期141-144,共4页Hydrometallurgy of China

摘　　要：针对氧化锌烟尘净化液中氟含量高的问题,分别以Ce(SO4)2·4H2O和Ce2(CO3)3为除氟剂,以H2O2和Na2S2O3为辅助剂,借助X射线衍射(XRD)法,探讨了铈盐沉淀法从氧化锌净化液中除氟的机制。结果表明:Ce(SO4)2·4H2O难以与净化液中的F-生成沉淀物;在添加Na2S2O3后,Ce2(CO3)3与浸出液中的F-生成CeCO3F沉淀物,可以实现除氟目的,溶液中氟质量浓度可以从0.638g/L降至0.115g/L,但Ce2(CO3)3用量大,成本较高。Removal of fluorinion from zinc sulfate solution of zinc oxide dust using Ce （SO4 ）2 ＆#183; 4H2 O and Ce2 （CO3 ）3 respectively was investigated .The technique of XRD was used .The experimental results indicate that Ce（SO4 ）2 ＆#183; 4H2 O has no role on removal of F -from zinc sulfate solution .F-in the solution can form CeCO3 F by adding Ce2 （CO3 ）3 and Na2 S2 O3 .T he content of fluoride in the solution is reduced from 0 .638 g/L to 0 .115 g/L .However ,the process has high cost and much more usage of Ce2 （CO3 ）3 .

关 键 词：氧化锌烟尘 净化液 氟 去除 

分 类 号：X758[环境科学与工程—环境工程]