Resumen

PERDOMO-GONZALEZ, Lorenzo et al. Recovery of vanadium from spent catalysts using aluminothermy at Patricio Lumumba Factory. Min. Geol. [online]. 2021, vol.37, n.3, pp. 303-317.  Epub 30-Sep-2021. ISSN 1993-8012.

The work studies the recovery of vanadium and other chemical elements, contained in exhausted catalysts from the Patricio Lumumba Factory in Pinar del Río. Three pyrometallurgical charges composed of spent catalyst, mill scale and aluminum chips, were evaluated. With such processing was possible to obtain 1,5 % V - 28,66 % Si ferroalloys, thus increasing the yields from 66 % to 88 % as the amount of processed load was increased. The alloy obtained has high brittleness, which facilitates its use in the development alloyed load for welding consumables. The yield slag remained close to 100%, relative to the theoretical potential, being all slags located in the corundum phase region of the Al2O3-Fe2O3-SiO2 state diagram with melting temperature above 1860 °C, which makes them feasible to use in the development of abrasive and refractory materials.

Palabras clave : aluminothermy; mill scale; spent catalysts; vanadium; ferroalloys.

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