Metallurgical Transactions B

, Volume 21, Issue 4, pp 743–751 | Cite as

The effects of impurity elements on the reduction of wustite and magnetite to iron in CO/CO2 and H2/H2O gas mixtures

  • S. Geva
  • M. Farren
  • D. H. St. John
  • P. C. Hayes
Solid State Reactions
Received:

Abstract

The reduction of dense wustite and magnetite samples in CO/CO2 and H2/H2O gas mixtures has shown that impurity elements in solid solution in the oxides can significantly affect the reaction mechanisms operative during reduction and the conditions for porous iron growth. In general, the presence of P, Mg, Ti, Si, Ca, K, and Na in wustite favors, in order of increasing strength, the formation of the porous iron product morphology. Aluminum, on the other hand, significantly reduces the range of gas conditions over which the porous iron microstructure may be obtained.

Keywords

Magnetite Metallurgical Transaction Wustite Impurity Element Porous Iron 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© The Minerals, Metals & Material Society 1990

Authors and Affiliations

  • S. Geva
    • 1
  • M. Farren
    • 2
  • D. H. St. John
    • 2
  • P. C. Hayes
    • 3
  1. 1.Queensland University of TechnologyQueenslandAustralia
  2. 2.Department of Mining and Metallurgical EngineeringUniversity of QueenslandBrisbaneAustralia
  3. 3.Research Materials ScienceCRA Advanced Technical DevelopmentCanningtonWestern Australia

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