摘要
研究了用硫酸锰与高锰酸钾直接混合制备新生态氧化锰,并用于从硫酸锌溶液中选择性除铊。结果表明:所制备氧化锰为近球形纳米颗粒,具有较大比表面积,可吸附去除溶液中的铊;在氧化锰加入量3 g/L、吸附时间60 min、温度30℃条件下,铊去除率达97.53%,吸附后液中铊质量浓度降至3.48 mg/L。新生态氧化锰对铊具有较好的选择吸附性和富集效果,溶液中其他杂质离子几乎不被吸附,有利于吸附渣的后续处理。
The nascent state manganese oxide was prepared by mixing of manganese sulfate with potassium permanganate,and was used to selectively remove thallium from Tl-bearing zinc sulfate solution.The results show that the nascent manganese oxide is subspherical nanoparticles with a big specific surface area,and can remove thallium in the solution.Under the optimum conditions of manganese oxide dosage of 3 g/L,adsorption time of 60 min,adsorption temperature of 30℃,the thallium removal rate reaches 97.53%and the thallium mass concentration in the final solution is reduced to3.48 mg/L.The nascent state manganese oxide has good selective adsorption and enrichment effect for thallium,and other impurity ions are hardly adsorbed which is beneficial for subsequent treatment of adsorption slag.
作者
周玉琳
叶龙刚
ZHOU Yulin;YE Longgang(Hunan Non-ferrous Metals Holding Group Co.,Ltd.,Changsha 400015,China;College of Materials and Advanced Manufacturing,Hunan University of Technology,Zhuzhou 412007,China)
出处
《湿法冶金》
CAS
北大核心
2022年第3期254-259,共6页
Hydrometallurgy of China
关键词
新生态氧化锰
制备
硫酸锌
铊
去除
nascent state nano-manganese oxide
preparation
zinc sulfate
thallium
removal
