Hemijska Industrija (Jan 2009)

Construction of isotherms in solvent extraction of copper

  • Cvetkovski Vladimir B.,
  • Conić Vesna T.,
  • Vuković Milovan V.,
  • Stojanovski Goran P.,
  • Cvetkovska Milena V.

DOI
https://doi.org/10.2298/HEMIND0904309C
Journal volume & issue
Vol. 63, no. 4
pp. 309 – 312

Abstract

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The aim of this work is construction of equilibrium isotherms in solvent extraction. Technological parameters have been predicted for treatment of mine water by solvent extraction and electrowining. Two stages of extractions and one stage of stripping have been predicted for copper recovery by analyzing the equilibrium isotherms. The process was performed on mine water with 2,5 g/dm3 Cu2+, 3 g/dm Fe2+, pH 1,8, using 9 vol% LIX 984N in kerosene (organic solvent), with 95 and 98% stages efficiencies, respectively. This course produced an advanced electrolyte solution, suitable for electrowining and cathodic copper recovery, containing 51 g/dm3 Cu2+ and 160g/dm3 H2SO4 from a 30 g/dm3 Cu and 190 g/dm3 H2SO4.

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