Abstract
Spent samples of V2O5/SiO2-γAl2O3 catalyst used for H2SO4 production were acid treated to recover vanadium. Fresh, spent, and acid treated samples were characterized by temperature-programmed techniques: TPR-H2, TPO-O2, TPD-NH3 and, TGA-DTA in order to determine the effect of deactivating species on vanadium recovery. DRX and UV-Vis techniques were used to confirm several signals from the temperature-programmed profiles. The results suggest that vanadium sulfovanadates and oxides in treated samples strongly interact with the support making it difficult to get more than 86% vanadium recovery.
Cite
CITATION STYLE
Charry, I. D., González, L. M., & Montes de Correa, C. (2013). Characterization by temperature programmed techniques of spent and acid treated vanadium catalysts. Revista Facultad de Ingeniería Universidad de Antioquia, (57), 31–37. https://doi.org/10.17533/udea.redin.14641
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