单膜双室电沉积金属锰  

Single-Membrane Double-Chamber Electrodeposition Process of Manganese Metal

作　　者：刘波[1,2] 宋小三[1,2] 宋玺琛[1,2] 岳子琳 范吉硕 LIU Bo;SONG Xiaosan;SONG Xichen;YUE Zilin;FAN Jishuo(Key Laboratory of Yellow River Water Environment of Gansu Province,Lanzhou Jiaotong University,Lanzhou 730070,China;Ministry of Education Engineering Center for Comprehensive Utilization of Water Resources in Cold and Arid Regions,Lanzhou 730070,China)

机构地区：[1]兰州交通大学甘肃省黄河水环境重点实验室,兰州730070 [2]寒旱地区水资源综合利用教育部工程中心,兰州730070

出　　处：《有色金属（冶炼部分）》2024年第1期11-20,共10页Nonferrous Metals（Extractive Metallurgy)

基　　金：国家自然科学基金资助项目(52364055)。

摘　　要：鉴于含锰废水有毒有害,提出阴离子交换膜代替隔膜处理含锰废水。首先采用单因素法探究最佳工艺参数,在最佳条件下,电流效率为71.36%,锰回收率为85.6%,酸回收率为77.23%,能耗为7 784.78 kWh/t;电解锰的宏观形态光滑均匀,具有金属光泽。用SEM和XRD分析手段分析不同亚硒酸浓度对电解锰的影响,结果表明,当亚硒酸为0.07 g/L时,电解锰微观结构表面均匀、致密性好、光滑、无枝晶且空洞最小,晶体形态为α-Mn。In view of the toxic and harmful effects of manganese-containing wastewater,anion-exchange membrane was proposed instead of diaphragm to treat manganese-containing wastewater.First,the single factor method test was used to explore the optimum process parameters,and under the optimum conditions,the current efficiency is 71.36%,the recovery rate of manganese is 85.6%,the recovery rate of acid is 77.23%,and the energy consumption is 7 784.78 kWh/t.The macroscopic form of electrolytic manganese is smooth and homogeneous with metallic luster.The results of SEM and XRD analysis on the effect of different concentration of selenite on electrolytic manganese show that,when the selenite is 0.07 g/L,the microstructure of electrolytic manganese is uniform,densely packed,smooth,dendrite free and with minimum voids.The electrolytic manganese prepared is α-Mn with good crystallinity.

关 键 词：单膜双室 电解锰 影响因素 电流效率 亚硒酸 

分 类 号：TF803.27[冶金工程—有色金属冶金]