Journal of the Chilean Chemical Society
versión On-line ISSN 0717-9707
CIFUENTES, GERARDO et al. COPPER ELECTROWINNING BASED ON REACTIVE ELECTRODIALYSIS. J. Chil. Chem. Soc. [online]. 2009, vol.54, n.4, pp.334-338. ISSN 0717-9707. http://dx.doi.org/10.4067/S0717-97072009000400002.
This paper shows an alternative to the classic electro winning copper process using a cell based on reactive electrodialysis, which consists of two compartments separated by an anionic membrane, one of which contains the copper sulphate catholyte, where the cathode is located, and the other compartment contains the ferrous sulfate anolyte, where the anode is located. In this type of cell the anodic reaction is the oxidation of iron (Fe2+ to Fe3+), which consumes less energy than the classic water oxidation. Moreover, this new anodic reaction does not produce acid mist.
Palabras clave : Copper; electrowinning; electrodialysis.