Characterization by temperature programmed techniques of spent and acid treated vanadium catalysts
Caracterización por técnicas de la temperatura programada de catalizadores de vanadio desactivados y tratados con ácido
| dc.creator | González Rodríguez, Lina María | |
| dc.creator | Montes de Correa, Consuelo | |
| dc.date | 2016-11-18T01:26:53Z | |
| dc.date | 2016-11-18T01:26:53Z | |
| dc.date | 2011 | |
| dc.date.accessioned | 2023-08-28T19:49:58Z | |
| dc.date.available | 2023-08-28T19:49:58Z | |
| dc.identifier | I. D. Charry, L. M. González and C. Montes, "haracterization by temperature programmed techniques of spent and acid treated vanadium catalysts", Rev. Fac. Ing. Univ. Antioquia, no. 57, pp. 31-37, 2011. | |
| dc.identifier | 0120-6230 | |
| dc.identifier | http://hdl.handle.net/10495/5404 | |
| dc.identifier | 2422-2844 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/8469324 | |
| dc.description | RESUMEN: Muestras de V2O5/SiO2-γAl2O3 desactivado durante la producción de ácido sulfúrico se trataron con ácido con el fin de recuperar el vanadio. Los materiales se caracterizaron mediante técnicas de temperatura programada: TPR-H2, TPO-O2, TPD-NH3, y TGA-DTA con el fin de determinar el efecto de las especies responsables de la desactivación en la recuperación del metal. Análisis por DRX y UV-Vis se utilizaron para confirmar algunas señales obtenidas en los perfiles de temperatura programada. Los resultados sugieren que la presencia de sulfovanadatos y óxidos de vanadio en las muestras tratadas hacen difícil recuperar más del 86% del vanadio presente en las muestras de catalizador. | |
| dc.description | 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. | |
| dc.format | 6 | |
| dc.format | application/pdf | |
| dc.format | application/pdf | |
| dc.language | eng | |
| dc.publisher | Universidad de Antioquia, Facultad de Ingeniería | |
| dc.publisher | Catálisis Ambiental | |
| dc.publisher | Medellín, Colombia | |
| dc.relation | Rev. Fac. Ing. Univ. Antioquia | |
| dc.rights | Atribución-NoComercial-CompartirIgual 2.5 Colombia (CC BY-NC-SA 2.5 CO) | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.rights | https://creativecommons.org/licenses/by-nc-sa/2.5/co/ | |
| dc.rights | http://purl.org/coar/access_right/c_abf2 | |
| dc.rights | https://creativecommons.org/licenses/by-nc-sa/4.0/ | |
| dc.subject | Catalizadores | |
| dc.subject | Vanadio | |
| dc.title | Characterization by temperature programmed techniques of spent and acid treated vanadium catalysts | |
| dc.title | Caracterización por técnicas de la temperatura programada de catalizadores de vanadio desactivados y tratados con ácido | |
| dc.type | info:eu-repo/semantics/article | |
| dc.type | info:eu-repo/semantics/acceptedVersion | |
| dc.type | http://purl.org/coar/resource_type/c_2df8fbb1 | |
| dc.type | https://purl.org/redcol/resource_type/ART | |
| dc.type | Artículo de investigación |