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Temperature dependence of the speciation of copper and iron in acidic electrolytes

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2006-10
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Cifuentes, L.
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Temperature dependence of the speciation of copper and iron in acidic electrolytes
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  • Cifuentes, L.;
  • Casas de Prada, Jesús;
  • Simpson, J.;
Abstract
Validated speciation models and revised thermodynamic data have been used to establish the temperature dependence of the concentrations of all the main species in aqueous Cu(II)-H2SO4 and Fe(II)-Fe(III)-H2SO4 solutions in the 25-65 degrees C temperature range. Mathematical relationships have been derived for the temperature dependence of the equilibrium constants for the relevant reactions and also for the species concentrations in a well specified set of conditions. These relationships have been developed in order to use them as components of complex temperature-dependent models in hydrometallurgy, but they are also useful as stand-alone predictors of equilibrium data in the studied systems.
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URI: https://repositorio.uchile.cl/handle/2250/124795
ISSN: 0263-8762
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CHEMICAL ENGINEERING RESEARCH & DESIGN Volume: 84 Issue: A10 Pages: 965-969 Published: OCT 2006
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