| 摘要 |
The purpose of the present invention is to enable high-purity manganese extremely reduced in contamination by zinc, carbon, etc. to be easily obtained at low cost by: selecting out manganese dry batteries and/or alkaline manganese dry batteries from waste dry batteries; crushing and sieving the selected dry batteries to obtain crushed particles; mixing the crushed particles with an acid solution and a reducing agent to leach manganese and zinc from the crushed particles; making ozone to act on the obtained leachate to obtain a manganese-containing sediment and a solution containing zinc ions; and subjecting the manganese-containing sediment and the solution containing zinc ions to solid-liquid separation. Thus, manganese components contained in the waste dry batteries are recovered as the manganese-containing sediment. |
