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Estudio de la formación de magnetita a partir de hematita

Authors: Fortuño-Morte, Maria;

Estudio de la formación de magnetita a partir de hematita

Abstract

En este trabajo, se han desarrollado diferentes métodos de síntesis, viables a escala industrial, para obtener magnetita (Fe3O4) a partir de hematita (α-Fe2O3). En primer lugar, se llevó a cabo la síntesis por el método sólido – sólido variando los agentes reductores (glucosa e hidrógeno), la temperatura máxima de trabajo y el tiempo de mantenimiento a esa temperatura. A partir de precursores industriales de hierro, se utilizó la glucosa como agente reductor pero la proporción de magnetita en el producto obtenido no alcanzó el 32 %. Al utilizar el hidrógeno como reductor el porcentaje de magnetita en el producto sintetizado no superó el 26 %. Además, se llevó a cabo la síntesis por el método sol – gel (Pechini) utilizando Tb(III) ya que en otros estudios [1] se observó que éste ayuda a la reducción de Fe(III) a Fe(II); con este método, siempre aparecieron fases secundarias de diferentes óxidos que contenían terbio siendo muy baja la cantidad de magnetita. Finalmente, se decidió llevar a cabo una síntesis hidrotermal en medio básico donde se logró obtener un producto que contenía 100 % magnetita.

Treball final de Màster Universitari en Química Aplicada i Farmacològica. Codi: SIM138. Curs acadèmic 2015-2016

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Spain
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Keywords

Máster Universitario en Química Aplicada y Farmacológica, Master's Degree in Applied and Pharmacology Chemistry, Màster Universitari en Química Aplicada i Farmacològica

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selected citations
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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.
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