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Gaseous reduction of manganese ores: A review and theoretical insight

Cheraghi, A ; Sharif University of Technology | 2020

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  1. Type of Document: Article
  2. DOI: 10.1080/08827508.2019.1604523
  3. Publisher: Taylor and Francis Inc , 2020
  4. Abstract:
  5. Gaseous reduction of manganese ores has been studied as it is beneficial for both understanding the common ferromanganese production process and the development of new processes. Thermodynamics, kinetics, and the mechanisms of reduction by methane have been reviewed, supported by thermodynamic calculations from the commercial HSC Chemistry and FactSage software. While there were similarities in reduction process by CO and H2, methane was a more efficient reductant and yielded reduction levels beyond MnO, which was due to the large thermodynamic driving force for carbide formation by metastable methane. The practical aspects of gaseous reduction by methane, such as application of a prereduction unit prior to smelting, gaseous emissions, and the theoretical energy consumption, have been discussed for different ore treatment scenarios. © 2019, © 2019 Taylor & Francis Group, LLC
  6. Keywords:
  7. kinetics ; Manganese ore ; Calcination ; Carbides ; Energy utilization ; Enzyme kinetics ; Ferroalloys ; Manganese oxide ; Methane ; Ores ; Reduction ; Smelting ; Thermodynamics ; Carbide formation ; Gaseous reduction ; Production process ; Reduction process ; Theoretical energy consumption ; Thermodynamic calculations ; Thermodynamic driving forces ; Ore reduction
  8. Source: Mineral Processing and Extractive Metallurgy Review ; Volume 41, Issue 3 , 2020 , Pages 198-215
  9. URL: https://www.tandfonline.com/doi/abs/10.1080/08827508.2019.1604523?journalCode=gmpr20