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Electrochemical Properties of Constituent Minerals of Manganese Nodules
Author(s) -
aka Michio,
Uchio Takayasu
Publication year - 1984
Publication title -
particle and particle systems characterization
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.877
H-Index - 56
eISSN - 1521-4117
pISSN - 0934-0866
DOI - 10.1002/ppsc.19840010124
Subject(s) - manganese , cobalt , copper , porosity , mineral , nickel , electrochemistry , dissolution , chemistry , deep sea , phase (matter) , mineralogy , inorganic chemistry , materials science , geology , metallurgy , electrode , oceanography , organic chemistry
Abstract Deep‐sea manganese nodules must be potentially valuable one of the most mineral resources containing several economically valuable metal elements. Manganese minerals in the nodules are regarded principally as todorokite and δ‐MnO 2 . The todorokite phase is porous and enriched in copper and nickel, while the porous δ‐MnO 2 phase is enriched in cobalt. Porosity and adsorption as well as dissolution characteristics have been observed for each constituent mineral. Furthermore the pore diffusion coefficient has been calculated. Moreover, the zeta potential of each constituent mineral has been measured in order to evaluate the electrochemical property. This has been applied successfully to the selective concentration of copper and nickel bearing or cobalt bearing minerals in deep‐sea manganese nodules.