在电解二氧化锰生产中去除硫酸锰溶液中As、Sb、Mo等离子的方法

On the Means of Eliminating As, Sb and Mo Plasma from Manganese Sulfate Solution in the Process of Producing Electrolytic Manganese Dioxide

用于碱性锌锰干电池正极活性材料的电解二氧化锰,其化学成分中的As、Sb、Mo杂质含量为0 0000005%(0 5ppm)以下。因此,必须在电解二氧化锰的制备电解液———硫酸锰溶液阶段,去除溶液中的大量有害杂质。对于溶液中的As、Sb、Mo来说,应达到0 00000003%(0 03ppm)左右,方能保证电解电沉积的EMD中,达到0 0000005%(0 5ppm)以下。

Used in the active materials of crown cells is the electrolytic manganese dioxide whose chemical ingredients consist of content of impurity substance less than 0.5 ppm. Therefore it is necessary to eliminate plenty of harmful impurity substance from the manganese sulfate solution in the process of producing electrolytic manganese dioxide. It would be favourable for the As, Sb and Mo in the solution to be reduced below 0.03 ppm.