Conversion of different Brazilian manganese ores and residues into birnessite-like phyllomanganate

This work describes the first synthesis of birnessite-type manganese oxides, using manganese ores and residues at the old mining site from Serra do Navio (Amapá State, northern Brazil) and Carajás mine (Pará State, northern Brazil). The preparation method involved dissolution of Mn2O3 followed by re...

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