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Thermal behavior of manganese minerals in controlled atmospheres
Beneficiating manganese oxide ores from the Butte-Philipsburg Federal Stockpile
Bacterial leaching of manganese ores
Flotation and sintering studies on manganese ores stockpiled at Deming, N. Mex., and Wenden, Ariz.
Electric furnace smelting of offgrade domestic manganese ores and concentrates
Sulfatization of manganese minerals and selected gangue materials
Reduction-volatilization processes for recovery of manganese from ores