| 摘要 |
PROBLEM TO BE SOLVED: To provide a high-purity manganese peculiarly having both impurity contents of oxygen and sulfur, obtained from a commercially available electrolysis manganese and to provide the method for producing the same.SOLUTION: A manganese raw material having a purity of 2N-level, is leached with acid and the residue is filtered with a filter. Thereafter, an electrolysis is performed and a degassing-treatment is applied to the obtained electrolysis manganese to be made to ≤100 ppm Cl content in the electrolysis manganese and furthermore, this electrolysis manganese is dissolved under inert gas atmosphere to produce the manganese containing ≤10 ppm Cl, ≤50 ppm C, <50 ppm S and <30 ppm O. The method is provided for producing the high-purity manganese from the commercially available electrolysis manganese to obtain the high-purity metallic manganese particularly having little impurity contents of Cl, C, S and O. |
