Leaching of iron from copper tailings by sulfuric acid: behavior, kinetics and mechanism
Lei Tao, Langlang Wang, Kanghuai Yang, Xueqian Wang, Lu Chen, Ping Ning
Abstract
Leaching behavior of copper tailings with sulfuric acid was expounded. Leaching was optimized: 1 M H<sub>2</sub>SO<sub>4</sub>, S/L of 1 : 10, <italic>T</italic> = 40 °C, 120 min. Fe<sub>2</sub>SiO<sub>4</sub> was preferentially leached than Fe<sub>3</sub>O<sub>4</sub>. Leaching of Fe is controlled by solid-phase diffusion.
Topics & Concepts
TailingsLeaching (pedology)Sulfuric acidCopperChemistryCopper extraction techniquesMetallurgySelective leachingKineticsInorganic chemistryMaterials scienceGeologySoil waterQuantum mechanicsSoil sciencePhysicsMetal Extraction and BioleachingExtraction and Separation ProcessesMinerals Flotation and Separation Techniques