kinetics of reduction of different manganese ores - Pyro.zaof a South African ore in the temperature range 1100°C-1350°C using thermo-gravimetry. In the early stages of reduction, the higher oxide of manganese and iron, viz. Mn2O3 and Fe2O3 were reduced to MnO and FeO, respectively. This process was controlled by diffusion. Iron metallisation occurred through random.mno process from maganese ore,The mechanism and kinetics of the carbothermic reduction of .The kinetics of reduction of the manganese ore from Mamatwan mine in South Africa has been studied by thermogravimetric analysis (TGA), X-ray diffraction . The later part of the process proceeded by the reduction of MnO, covered by either the carbide or silicate phase, by carbon dissolved in the carbide phase (Mn,.