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Recovery of Vanadium from Leaching Solution of Roasted Isfahan Steelmaking Slag Using Solvent Extraction
, M.Sc. Thesis Sharif University of Technology ; Askari, Masoud (Supervisor)
Abstract
Solvent extraction of vanadium (V) from sulfated leaching solution of the converter slag of the Isfahan steel company followed by stripping of this element from the organic solvent were examined in this study. In the experimental section, 2-ethyl-1-hexanol extractor was utilized for selective separation of V(V) from the acidic medium containing Si, Na, Fe, Al, Ca, and P ions. Ammonium chloride solution was also used for stripping V from the organic phase. Under optimal condition (pH=1.9, T=65℃, extractor concentration of 68% and organic phase volume fraction of 0.66), 91% was extracted in solvent extraction stage. Under optimal stripping conditions (pH=7.5, T=25℃, organic phase volume...
Optimization of the Processes Parameters for Solvent Extraction and Precipitation of Thorium from Chahgaz Mine Ores Leach Liquor
, M.Sc. Thesis Sharif University of Technology ; Outokesh, Mohammad (Supervisor) ; Zare Tavakolli, Hassan (Supervisor) ; Godocynejhad, Davood (Co-Supervisor)
Abstract
This research investigates and optimizes solvent extraction parameters for separat1ing thorium from the leach solution of the uranium-bearing ore at the ChahGaz mine. The study is applied research aimed at achieving technical knowledge of thorium extraction and purification from thorium-bearing ore through hydrometallurgical processes to obtain thorium concentrate and provide laboratory and semi-industrial flotation. The results obtained from this project lead to the production of thorium concentrate, which can later be utilized in industrial-scale applications. In this project, the influential parameters in the solvent extraction process were simultaneously examined through experimental...