Dissolution behaviour of freibergite-tetrahedrite concentrate in acidic dichromate solution

  • Sh Nyamdelger Institute of Chemistry and Chemical Technology, MAS, Peace ave., Ulaanbaatar 13330
  • G Burmaa Institute of Chemistry and Chemical Technology, MAS, Peace ave., Ulaanbaatar 13330
  • T Narangarav Institute of Chemistry and Chemical Technology, MAS, Peace ave., Ulaanbaatar 13330
  • G Ariunaa Institute of Chemistry and Chemical Technology, MAS, Peace ave., Ulaanbaatar 13330
Keywords: dissolution, freibergite-tetrahedrite concentrate, dichromate

Abstract

Asgat ore sample with estimated content of 431g/t silver was concentrated by using floatation method and obtained freibergite-tetrahedrite concentrate with 9050g/t Ag, 35.75% Cu, 28.5% Sb and 10.6% Fe, respectively. The dissolution of concentrate in acidic potassium dichromate solution has been investigated with respect to the sulfuric acid and potassium dichromate concentrations and by changing leaching temperature and time. Leaching freibergitetetrahedrite concentrate in dichromate acidic solution (K2Cr2O7-0.1M, H2SO4-0.4M leaching time 4h, leaching temperature 95°С) resulted total amount of leaching of 95.65 % silver, 93.85% copper, 99.86 % antimony and 30.18% iron.

DOI: http://dx.doi.org/10.5564/mjc.v14i0.196

Mongolian Journal of Chemistry 14 (40), 2013, p36-40

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Abstract
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1780
Published
2014-10-01
How to Cite
Nyamdelger, S., Burmaa, G., Narangarav, T., & Ariunaa, G. (2014). Dissolution behaviour of freibergite-tetrahedrite concentrate in acidic dichromate solution. Mongolian Journal of Chemistry, 14, 36-40. https://doi.org/10.5564/mjc.v14i0.196
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