Leaching of a Mongolian chalcopyrite concentrate

  • Nicholas J Welham Principal Technological Consultant, Alexander Mining plc, London, UK https://orcid.org/0000-0002-4716-9837
  • Jadambaa Temuujin Institute of Chemistry and Chemical Technology, Mongolian Academy of Sciences, Peace Avenue,4th Bulding of MAS, Bayanzurkh district, Ulaanbaatar 13330, Mongolia https://orcid.org/0000-0003-0930-7271
  • Nader Setoudeh Materials Engineering Department, Yasouj University, Yasouj, 75918-74831, Iran
Keywords: Chalcopyrite, leaching, sodium hypochlorite

Abstract

A Mongolian chalcopyrite flotation concentrate was leached using sodium hypochlorite adjusted to different pH using hydrochloric acid. It was found that using a starting pH of below 5.0 resulted in more efficient leaching. The extent of chalcopyrite leaching was determined by the concentration of sodium hypochlorite with > 40% dissolution being achieved. The residue after leaching was found to consist primarily of unreacted chalcopyrite which would be suitable for further leaching or smelting.

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Author Biographies

Nicholas J Welham, Principal Technological Consultant, Alexander Mining plc, London, UK

School of Engineering, Edith Cowan University, Joondalup, Western Australia

Nader Setoudeh, Materials Engineering Department, Yasouj University, Yasouj, 75918-74831, Iran

School of Engineering, Edith Cowan University, Joondalup, Western Australia

Published
2018-12-28
How to Cite
Welham, N., Temuujin, J., & Setoudeh, N. (2018). Leaching of a Mongolian chalcopyrite concentrate. Mongolian Journal of Chemistry, 19(45), 1-4. https://doi.org/10.5564/mjc.v19i45.1082
Section
Short communication