膜法组合工艺在电解锰产品中的影响因素分析

Analysis of Influencing Factors of Membrane Process in Electrolytic Manganese Products

摘要:

双膜三室工艺中，探究不同影响因素对阴阳格室电解锰和二氧化锰产量及电流效率的影响。分别从溶液浓度、电解温度、pH、电流密度、添加剂含量及极板材质方面进行了考察。实验表明：双膜三室工艺中，控制溶液中Mn2+质量浓度 35~41g/L、电解温度35~37℃、阴极pH=7~7.2；阳极酸浓度2.5mol/L、阴极电流密度350~400A/m2；阳极800A/m2、阴极添加剂SeO2浓度0.03~0.04g/L、阴极板采用不锈钢板阳极板采用钛涂二氧化铅板条件下，阴极电流效率高于70%，阳极1L电解液中二氧化锰产量高于40g。

Abstract:

The effects of different factors on the output and current efficiency of electrolytic manganese and man-ganese dioxide in the yin-yang cell were investigated. Solution concentration, electrolysis temperature, pH, current density, additive content and plate material were studied. Experiment shows that the double membrane process 3 rooms, the control solution concentration of Mn2+ 35 to 41 g/L, electrolytic tempera-ture 35 to 37 ℃, cathode pH = 7~7.2; Anodic acid concentration of 2.5mol/L, cathode current density of 350~400A /m2; Anode 800A/m2, cathode additive SeO2 concentration 0.03~0.04g/L, cathode plate using stainless steel plate and anode plate using titanium coated lead dioxide plate, the anode and cathode have high yield, and the current efficiency is higher than 70%,and the output of manganese dioxide in anode 1L electrolyte is higher than 40g.