THERMODYNAMIC AND ELECTROCHEMICAL STUDY OF VANADIUM SOLUTIONS: TOWARDS VANADIUM RECOVERY FROM A SPENT CATALYST
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| Format: | Artículo científico |
| Langue: | en |
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Universidad Nacional Autónoma de México
2021
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| _version_ | 1876445835847270400 |
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| author | Fidel Hernández-Pérez |
| author_facet | Fidel Hernández-Pérez |
| contents | THERMODYNAMIC AND ELECTROCHEMICAL STUDY OF VANADIUM SOLUTIONS: TOWARDS VANADIUM RECOVERY FROM A SPENT CATALYST Fidel Hernández-Pérez René Antaño-López Fabricio Espejel-Ayala Ciencias de la Tierra Vanadium zeolites spent catalyst industrial wastes Pourbaix diagrams Due to the low abundance of vanadium in nature (about 135 g/t), the feasibility to recover it from industrial wastes has highly attracted scientific and technological attention. The main recovery routes reported are associated with chemical or thermochemical processes. However, the electrochemical recovery of vanadium from industrial wastes has been poorly investigated. In this work, a thermodynamic and electrochemical study for the possible vanadium recovery from a spent catalyst generated in the petrochemical industry was conducted. The study was divided into two stages using low vanadium concentrations. In the first stage, the recovery of vanadium was possible in its V4+ state at low reduction potentials, whereas for the second stage, cyclic voltammetry was used to calculate the diffusion coefficient and the heterogeneous velocity coefficient of the V5+/V4+ redox pair. The obtained values are similar to those reported in the literature for aqueous solutions at high vanadium concentrations and would allow the design of the system at large scale. This report aims to set the conditions for the possible vanadium recovery from a spent catalyst by means of electrochemical processes, although the optimization of such conditions must be further explored. 2021 artículo científico 0188-4999 https://www.redalyc.org/articulo.oa?id=37072384010 https://www.redalyc.org/journal/370/37072384010/ https://www.redalyc.org/journal/370/37072384010/html/ https://www.redalyc.org/journal/370/37072384010/37072384010.epub https://www.redalyc.org/journal/370/37072384010/movil 10.20937/RICA.53820 en http://www.redalyc.org/revista.oa?id=370 Revista Internacional de Contaminación Ambiental application/pdf Universidad Nacional Autónoma de México Revista Internacional de Contaminación Ambiental (México) Vol.37 |
| format | Artículo científico |
| id | redalyc_37072384010 |
| institution | Redalyc |
| language | en |
| publishDate | 2021 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | THERMODYNAMIC AND ELECTROCHEMICAL STUDY OF VANADIUM SOLUTIONS: TOWARDS VANADIUM RECOVERY FROM A SPENT CATALYST Fidel Hernández-Pérez Ciencias de la Tierra Vanadium zeolites spent catalyst industrial wastes Pourbaix diagrams THERMODYNAMIC AND ELECTROCHEMICAL STUDY OF VANADIUM SOLUTIONS: TOWARDS VANADIUM RECOVERY FROM A SPENT CATALYST Fidel Hernández-Pérez René Antaño-López Fabricio Espejel-Ayala Ciencias de la Tierra Vanadium zeolites spent catalyst industrial wastes Pourbaix diagrams Due to the low abundance of vanadium in nature (about 135 g/t), the feasibility to recover it from industrial wastes has highly attracted scientific and technological attention. The main recovery routes reported are associated with chemical or thermochemical processes. However, the electrochemical recovery of vanadium from industrial wastes has been poorly investigated. In this work, a thermodynamic and electrochemical study for the possible vanadium recovery from a spent catalyst generated in the petrochemical industry was conducted. The study was divided into two stages using low vanadium concentrations. In the first stage, the recovery of vanadium was possible in its V4+ state at low reduction potentials, whereas for the second stage, cyclic voltammetry was used to calculate the diffusion coefficient and the heterogeneous velocity coefficient of the V5+/V4+ redox pair. The obtained values are similar to those reported in the literature for aqueous solutions at high vanadium concentrations and would allow the design of the system at large scale. This report aims to set the conditions for the possible vanadium recovery from a spent catalyst by means of electrochemical processes, although the optimization of such conditions must be further explored. 2021 artículo científico 0188-4999 https://www.redalyc.org/articulo.oa?id=37072384010 https://www.redalyc.org/journal/370/37072384010/ https://www.redalyc.org/journal/370/37072384010/html/ https://www.redalyc.org/journal/370/37072384010/37072384010.epub https://www.redalyc.org/journal/370/37072384010/movil 10.20937/RICA.53820 en http://www.redalyc.org/revista.oa?id=370 Revista Internacional de Contaminación Ambiental application/pdf Universidad Nacional Autónoma de México Revista Internacional de Contaminación Ambiental (México) Vol.37 |
| title | THERMODYNAMIC AND ELECTROCHEMICAL STUDY OF VANADIUM SOLUTIONS: TOWARDS VANADIUM RECOVERY FROM A SPENT CATALYST |
| topic | Ciencias de la Tierra Vanadium zeolites spent catalyst industrial wastes Pourbaix diagrams |
| url | https://www.redalyc.org/articulo.oa?id=37072384010 https://www.redalyc.org/journal/370/37072384010/ https://www.redalyc.org/journal/370/37072384010/html/ https://www.redalyc.org/journal/370/37072384010/37072384010.epub https://www.redalyc.org/journal/370/37072384010/movil |