Keywords
ion exchange
sorption
anion exchanger
hydrometallurgy
How to Cite
Abstract
This study investigates the recovery and purification of molybdenum from hydrometallurgical solutions using ion-exchange methods. The research focuses on the influence of molybdenum ionic forms, solution acidity, acid concentration, initial molybdenum concentration, contact time, and physicochemical properties of anion exchangers on the sorption process. A comparative analysis of molybdenum behavior in hydrochloric, sulfuric, nitric, phosphoric, and perchloric acid media was carried out. The results demonstrate that molybdenum sorption is strongly dependent on the acidity of the solution and its ionic state. Sorption isotherms indicate an increase in molybdenum uptake with increasing equilibrium concentration, followed by gradual saturation of the active exchange sites. Kinetic investigations show rapid molybdenum sorption during the initial stage and subsequent attainment of equilibrium. The obtained results confirm the potential of ion-exchange technology for selective molybdenum recovery and purification and provide a basis for optimizing the main technological parameters of the process.
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Copyright (c) 2026 Kayumov, O.A. (Author)