Blanqueo de caolín por medio de lixiviación en pilas con ácido oxálico

Abstract

Se estudiaron los resultados experimentales de lixiviación en pilas para el blanqueo del caolín a escala de laboratorio basados en un desarrollo teórico. El objetivo principal fue evaluar la remoción de óxidos de hierro sobre la superficie del caolín, Método con el uso de diferentes concentraciones de ácido oxálico en un tiempo de 48 días. Resultado. El índice de blancura del caolín de alimento fue del 52.1%, con porcentajes de hierro del 0.19%. A partir de los ensayos experimentales, Conclusión los resultados mostraron que para las concentraciones de 0.15M, 0.015M y 0.95M, las remociones de hierro fueron alrededor del 72.2%, 26.7%, 90.8% y los índices de blancura obtenidos fueron de 90.2%, 83.8% y 97% respectivamente.Abstract The experimental results of leaching were studied in batteries for bleaching kaolin scale The experimental results of leaching were studied in batteries for bleaching kaolin scale development based on a theoretical laboratory. The main objective was to evaluate the removal of iron oxides on the surface of kaolin, Methods: the use of different concentrations of oxalic acid drip for 48 days in each heap. Results: The whiteness index of feed Kaolin is 52.1%, with an iron content of 0.19%. Conclusions: The results showed that for acidic concentrations 0.15M, 0.015M and 0.95M, the iron removed was approximately 72.2%, 26.7%, 90.8% and the whiteness index rose to 90.23%, 83.8%, and 97% respectively. Palabras clave: Acido Oxálico, Blanqueo de Caolín, Hidrometalurgia, Lixiviación en pilas, Óxidos de hierro

Nickel laterite concentration through a non-conventional method with surface sulfidization

“…Three different mechanisms of froth flotation were performed in which each of these was used as a type of reagent [22,23,[32][33][34]. Oxide-type mineral collectors must emphasize better efficiency for the recovery of fine particles and aid in the improvement of the differential flotation of complex oxide ores, having greater selectivity in anionic flotation in relation to silica.…”