摘要
研究了以(NH_(4))_(2)SO_(3)作添加剂,以MnSO_(4)-(NH_(4))_(2)SO_(4)-H_(2)O体系电沉积金属锰,考察了电流密度、亚硫酸铵用量、Mn^(2+)质量浓度、温度对阴极锰沉积量和电流效率的影响。结果表明:以MnSO_(4)-(NH_(4))_(2)SO_(4)-H_(2)O体系电解锰,在温度45℃、Mn^(2+)质量浓度35 g/L、硫酸铵质量浓度120 g/L、电流密度298.08 A/m^(2)、pH=7.5、(NH_(4))_(2)SO_(3)用量0.12 g/L条件下,电流效率为67.42%,电沉积的锰为α-Mn。
Electrodeposition manganese in MnSO_(4)-(NH_(4))_(2)SO_(4)-H_(2)O system using(NH_(4))_(2)SO_(3)as additive was researched.The effects of current density,ammonium sulfite dosage,Mn^(2+)mass concentration and temperature on cathode manganese deposition and current efficiency were examined.The results show that in MnSO_(4)-(NH_(4))_(2)SO_(4)-H_(2)O system,under the optimum conditions of 45℃,Mn^(2+)mass concentration of 35 g/L,ammonium sulfate mass concentration of 120 g/L,pH=7.5,current density of 298.08 A/m^(2)and(NH_(4))_(2)SO_(3)dosage of 0.12 g/L,the current efficiency is 67.42%and electrodeposited manganese isα-Mn.
作者
叶昌美
黄健
李武斌
张谊
胡志同
任康铭
YE Changmei;HUANG Jian;LI Wubin;ZHANG Yi;HU Zhitong;REN Kangming(Guizhou New Materials Research and Development Institute,Guiyang 550014,China)
出处
《湿法冶金》
CAS
北大核心
2022年第4期351-354,共4页
Hydrometallurgy of China
基金
贵州科学院省级科研专项资金资助项目(黔科院科专合字[2020]05号)。
关键词
亚硫酸铵
锰
电沉积
电流效率
ammonium sulfite
manganese
electrodeposition
current efficiency
