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- W184780064 abstract "The reduction behaviour of manganese ores from the Mamatwan and Wessel mines has been studied by thermogravimetric analysis (TGA), X-ray diffraction analysis (XRD), optical microscopy, and energy dispersive analysis of x-rays (EDAX) between 1100 and 1350°C with pure graphite under an argon atmosphere. The rate and degree of reduction increased with increasing temperature and decreasing particle size. At the early stages of reduction, higher manganese oxides reduced to manganous oxide (MnO), and hematite to metallic iron. A calcium-manganese silicate slag formed, and the reduction proceeded by the reduction of the MnO dissolved in the slag, as well as the reduction of remaining solid MnO resulting in the formation of a (Mn, Fe)5C2 carbide." @default.
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- W184780064 date "1990-01-01" @default.
- W184780064 modified "2023-09-27" @default.
- W184780064 title "Reduction behaviour of some South African manganese ores" @default.
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- W184780064 doi "https://doi.org/10.1016/b978-0-08-040411-0.50008-0" @default.
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