マンガンノジュールからの有価物の選択的回収 [in Japanese] Selective Recovery of Valuable Materials from the Manganese Nodule [in Japanese]
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Recent popularization of portable electronics-instruments such as cordless telephone has been supported by research and development of the secondary battery such as lithium ion type, on which researches have been focusing so far to obtain the small size, the high discharge capacity, the high energy dencity, as well as the enviromental safty. This paper describes effective methods on oxidationγreduction potentials and other optimum conditons for the metal leaching with sulfurous acid from the sea manganese nodules, the oxidation/separation for iron with air/ozone from the leach solution, the selective separation of copper with hydrogen sulfide from the leach solution, and the oxidationγseparation for manganese dioxide with oxigen/ozone. The manganese dioxide obtained is identified to be the same material as electrolytic γ‐MnO2 used for batteries.
- Journal of MMIJ
Journal of MMIJ 114(3), 201-206, 1998-03-25
The Mining and Materials Processing Institute of Japan