METHOD FOR PRODUCING HIGH PURITY MANGANESE OXIDE FROM BYPRODUCT OF MANGANESE STEEL ALLOY SMELTING FURNACE AND ELECTRIC FURNACE, AND HIGH PURITY MANGANESE OXIDE PRODUCED THEREBY

摘要

The present invention relates to a method for producing a high purity manganese oxide to obtain the high purity manganese oxide from byproducts generated in a manganese steel alloy smelting furnace and a manganese steel alloy electric furnace containing manganese. The method for producing a high purity manganese oxide comprises: a reducing step (S10a) by using carbon ; a manganese leaching step (S20b); and a first impurity removing step (S30a). Byproduct generated in the manganese steel alloy electric furnace implement pretreatment processes of: a potassium (K) removing step (S10b); a manganese leaching step (S20b); and a first impurity removing step (S30b). And then, the method comprises the steps of: mixing liquids obtained in the step (S30a) and the step (S30b) passing through the pretreatment processes, and removing a second impurity (S40); a depositing step (S50); an oxidation step (S70); and a step (S90) of collecting manganese oxide (Mn_3O_4).;COPYRIGHT KIPO 2015