Thermodynamics of reactions during nitric acid leaching of minerals of a copper concentrate

• DOI: 10.3103/s106782121102012x
• Publication Date: 2011-05-11T10:17:34Z
• Authors: D. Tsogtkhankhai; S. V. Mamyachenkov; O. S. Anisimova; S. S. Naboichenko
• Keywords: Nitric acid

Conditions for the effective dissolution of sulfides without the isolation of elemental sulfur and iron oxides are determined at 20 and 100°C using “potential-pH” thermodynamic diagrams in the Cu-Fe-S-N-O-H system. The acquired thermodynamic characteristics of leaching of the copper concentrate with nitric acid can be used when selecting the production parameters for processing the copper concentrates.