电解金属锰的制备方法１专利申请的范围将生产锰铁时的渣用硫酸浸出，浸出液用碱中和，并将ｐＨ调至６０～８５范围内，溶液中二价铁被氧化，铁与重金属均形成氢氧化物，经过滤被除去，然后，将溶液浓缩，浓缩至硫酸锰即将析出前，将析出的ＣａＳＯ４过滤除去后，再进... Preparation of Electrolyzed Manganese Metal 1 Scope of Patent Application The residue from the ferromanganese production is leached with sulfuric acid, the extract is neutralized with alkali, and the pH is adjusted to a range of 6  0 ~ 8  5, the ferrous iron is oxidized in the solution , Iron and heavy metals are formed hydroxides, filtered to be removed, and then, the solution was concentrated and concentrated to manganese sulfate about to precipitate before the precipitation of CaSO4 filtered ...