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Minería y Geología
Article . 2019
Data sources: DOAJ
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Recuperación de elementos metálicos desde catalizadores de vanadio agotados aplicando lixiviación ácida

Authors: Lorenzo Perdomo-González; Rafael Quintana-Puchol; Laura Ailin Perdomo-Gómez; Ángel Mollineda-Trujillo;

Recuperación de elementos metálicos desde catalizadores de vanadio agotados aplicando lixiviación ácida

Abstract

En la producción de ácido sulfúrico por el método de contacto se utilizan catalizadores de pentóxido de vanadio, los cuales, una vez agotados, se almacenan por tiempo indefinido de acuerdo con regulaciones medio ambientales. En el presente trabajo se evalúa la recuperación de elementos metálicos contenidos en estos catalizadores, mediante lixiviación con ácido sulfúrico al 15 % v/v y posterior precipitación con solución amoniacal al 25 % m/m. A partir de un balance de masa se definieron las masas y composición química teórica del producto recuperado y de los residuales líquidos y sólidos. El procesamiento permitió obtener 1,756 g de concentrado (14,9 % del residual), formado mayormente por V2O5; Fe2O3; MnO, además Cr2O3, NiO, CaO, CoO y CuO. Los elementos metálicos se determinaron por espectrometría de absorción atómica, con excepción del vanadio, que se comprobó mediante espectroscopia ultravioleta visible y fluorescencia de rayos-X. Esta evaluación constituye una alternativa para obtener óxidos metálicos a partir de residuos sólidos contaminantes, a la vez que contribuye a la protección del medio ambiente.

Keywords

QE1-996.5, catalizadores agotados, producción de ácido sulfúrico, Mining engineering. Metallurgy, TN1-997, recuperación de vanadio, Geology, lixiviación ácida, Mineralogy, QE351-399.2

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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