| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Kočí, Jan | Prague |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Gómez-Pérez, Carlos R.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (4/4 displayed)
- 2018Balances de masa y calores de reacción para evaluar la extracción de vanadio a partir de catalizadores agotados en el proceso de obtención de ácido sulfúrico
- 2018Obtención en horno eléctrico de arco de aleaciones del sistema Fe-Mn-Cr-C y escorias destinadas al desarrollo de consumibles de soldadura
- 2012Efecto de la adición de caliza sobre el metal depositado por arco sumergido
- 2004Reducción carbotérmica de pirolusita para la obtención de ferromanganeso y escoria, adecuados al desarrollo de materiales de soldadura
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article
Balances de masa y calores de reacción para evaluar la extracción de vanadio a partir de catalizadores agotados en el proceso de obtención de ácido sulfúrico
Abstract
Obtaining sulfuric acid by the contact method requires the use of catalysts with more than 4 % vanadium, which leave service once spent, requiring storage. On the other hand, the mill scale is generated during the hot rolling process, constituting approximately 2 % of the processed steel. The appropriate combination of these two industrial wastes can be exploited for the extraction of vanadium from the catalysts by the aluminothermic method. The results of the processing of these wastes can be evaluated by means of mass balances and the determination of the heats of the redox reactions involved. This analysis is the main objective of this work. As a result it is obtained that the mixtures of mill scale - catalyst can be processed in proportions from 1 / 0.25 to 1 / 1.5, obtaining alloys with vanadium and silicon contents between 0.6 and 2.69 % and silicon 8.9 and 23.12%, respectively. By means of determination of the reaction heats of the mixtures it was obtained that the amount of heat generated per mass unit exceeds the 550 cal / g barrier, for all the evaluated mixtures.