Metallurgical Transactions B

, 14:589 | Cite as

Oxidation aspects of the lime-concentrate-pellet roasting process

  • H. Ahmadzai
  • S. Blairs
  • B. Harris
  • L-I Staffansson
Pyrometallurgy
Received:

Abstract

Thermogravimetry has been employed to follow the progress of the oxidation reaction of cylindrical pellets of chalcopyrite concentrate blended with lime. Metallographic examination of pellet sections established the shrinking core pattern under the various experimental conditions. The rate of oxidation was investigated over the temperature range 753 to 873 K. To enable comparison with earlier work, subsequent leaching of calcines from the 773 K runs was also examined. Factors resulting in low copper recoveries have been examined thermodynamically and confirmed by X-ray diffraction analyses.

Keywords

Lime Metallurgical Transaction CaSO4 Copper Sulfide Hydrate Lime 
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 Metallurgical of Society of AIME 1983

Authors and Affiliations

  • H. Ahmadzai
    • 1
  • S. Blairs
    • 2
  • B. Harris
    • 2
  • L-I Staffansson
    • 1
  1. 1.Department of Theoretical MetallurgyRoyal Institute of TechnologyStockholmSweden
  2. 2.School of MetallurgyThe University of New South WalesKensingtonAustralia

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