아연전해조에서 채취한 망간스라임에는 MnO₂가 59.94 % 함유되어 있었다. 이 망간스라임을 물로 씻기, 환원배소, 용해추출, 용출액중의 불순물 제거 및 전해석출의 과정을 거쳐서 전해이산화망간을 합성하였다. 또한 X-선 회절분석에 의해 본 실험에서 합성된 MnO₂는 전지활성이 우수한 γ형임을 알았다.

Manganese slimes which were formed in the zinc refinery electrolytic cells contained 59.94 % of MnO₂. The recovery process of MnO₂ from the slimes consisted of five steps, i.e., washing the slimes with water, roasting, dissolution of manganese, removal of impurities, and electrolytic synthesis of MnO₂. By X-ray diffraction method it was proved that the recovered MnO₂ had γ-typed crystalline structure.