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Meeting 2021 TMS Annual Meeting & Exhibition
Symposium Materials Processing Fundamentals
Presentation Title Thermodynamic Modeling of Iron-copper-sulfuric Acid Solutions during Solvent Extraction and Electrowinning for Copper Production
Author(s) Jiahao Xu, Guikuan Yue
On-Site Speaker (Planned) Jiahao Xu
Abstract Scope Solvent Extraction and Electrowinning (SX/EW) play an important role during the hydrometallurgical production of copper for low grade ores. To better understand the rapid Cu extraction/strip kinetics for producing a high-purity CuSO4-H2SO4 electrolyte and elucidate the method to maximize current efficiency by preventing leach carryover to electrolyte during SX and minimizing the iron concentration, a detailed speciation study is required to quantitatively describe the iron and copper distribution in the SX/EW solutions. In the present study, by virtue of our previous modeling work, thermodynamic modeling of the SX/EW solutions is carried out to quantify the distribution of iron (ferric and ferrous), copper and sulfuric acid. The developed model provides a mathematical tool capable of quantifying the concentrations of free ions and complexes in terms of temperature (25C-60C) and solution composition under simulated industrial conditions. Finally, oxidation reduction potential measurements are employed to validate the model.
Proceedings Inclusion? Planned:
Keywords Hydrometallurgy,

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Carbothermal Reduction of Brazilian Linz Donawitz-LD Steel Sludges
Computational Fluid Dynamics Modeling of Damped Oscillations of Molten Metal Droplets
Contactless Inductive Flow Tomography for Control of Liquid Metal Flow with Electromagnetic Actuators
Containerless Materials Processing for Materials Science on Earth and in Space
Cylindrical and Planar Magnetron Sputtering for Microstructural Control
Effect of Dissolution of Titanium Ions on Ti Alloys Electrodeposition from EMIC-AlCl3 Ionic Liquid at Low Temperature
Effect of Nitrogen on Weldability and the Microstructure in Laser Beam Welding of Duplex Stainless Steel
Effect of Slag Conductivity on Decarburisation Reaction Kinetics
Experimental Characterization of Liquid Metal Bubble-driven Flows Modeling the Situation in a Steel Ladle
Influence of Slab Transportation and Handling Practice on Crack Sensitivity of Micro-alloyed Steels
Liquid-liquid Extraction Thermodynamic Parameter Estimator (LLEPE) for Multicomponent Separation Systems
Low Temperature Aluminothermic Reduction of Metal Oxides
Modelling of Metal Loss in Ferromanganese Furnace Tapping Operations
Numerical Simulation of the Influence of Particle Physical Properties on Flow Field during the Aeration Leaching Process
Stress Development Simulation in Continuously Cast Steel Slabs during Cooling Process
The Role of Copper in Combustion Processes
Thermodynamic Examination of Quaternary Compounds in the Ag–Fe–(Ge, Sn)–Se Systems by the Solid-state EMF Method
Thermodynamic Modeling of Iron-copper-sulfuric Acid Solutions during Solvent Extraction and Electrowinning for Copper Production
X-ray and Neutron Radiographic Experiments on Particle-laden Molten Metal Flows

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