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Determination Of Oxidation-Reduction Potential And Iron Chemistry For Solutions Generated During The Hydrometallurgical Extraction Of Copper, Jiahao Xu
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Oxidation-reduction potential (ORP) based on iron chemistry is one of the key operating parameters during the hydrometallurgical extraction of copper. A novel ORP equation was developed previously only based on the variables of temperature and nominal ferric/ferrous ratio to predict the redox potential of the quaternary H2SO4-Fe2(SO4)3-FeSO4-H2O system. However, its applicability in more complex acidic iron sulfate solutions during the hydrometallurgical extraction of copper with different temperatures, acidic concentration, cupric concentration, nominal ferric/ferrous ratio, and total and l iron concentration has not been extended and validated. This work evaluates the applicability of novel oxidation-reduction potential equation in the H2SO4-Fe2(SO4)3-FeSO4-H2O and …