| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for producing manganese oxide which does not bring about environment load by recycling a waste water solution generated when producing manganese dioxide, and further to provide a method capable of producing stably and efficiently manganese oxide not only to reuse a recycled substance from the waste water solution as a raw material. <P>SOLUTION: The method for producing manganese oxide includes: a first step of obtaining manganese oxide from a manganese salt aqueous solution and an alkali aqueous solution, and recovering the manganese oxide by separating it from the aqueous solution; a second step of adjusting the pH of the aqueous solution recovered in the first step into between 6 and 9, and thereafter recovering a solid phase by separating it from the aqueous solution; and a third step of obtaining an acid aqueous solution and an alkali aqueous solution by electrolyzing the aqueous solution recovered in the second step. <P>COPYRIGHT: (C)2013,JPO&INPIT |
