Synopsis The composite cold pellet consisted of manganese ore, iron ore, fine coke and ferro-manganese slag based on their charging ratio at the silico-manganese production in an electric furnace was produced without additional binders by a pilot plant. The physical properties of the composite cold pellet produced, such as decrepitation, reduction disintegration, reducibility and resistivity were remarkably improved in comparison with the original manganese ore. Only one thirds of energy of ordinary firing agglomeration process is expected to be required to the pellet production. Moreover, the energy under 200 °C like plant exhaust heat is sufficient to the processing and this process is expected to be pollution free. By replacing 40 % of manganese lump ore to the composite cold pellet 243 kWh/t of electricity saving, 123 kg/t of nut coke substitution by fine coke including 23 kg/t of net saving and 1.2 % increase of manganese yield in metal were achieved in silico-manganese production test.
Durch direkte Beobachtung des Wachstums der Eisenphase auf Wüstit in einem Mikroskop‐Heiztisch Ableitung eines linearen Zeitgesetzes. Beschreibung des Sauerstoffausbaus im wesentlichen in der Dreiphasengrenze Eisen/Wüstit/Gasatmosphäre. Untersuchung des Einflusses von Wasserdampf Zusätzen zum Reduktionsgas hinsichtlich einer ausgeprägten Hemmung der Wachstumsgeschwindigkeit.
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