Comparison Between Performance of Fluorite Flotation Under Different Depressants Reagents in Two Pieces of Laboratory Equipment Corpas-Martínez, José Raúl Pérez Muñoz, Antonio Navarro-Domínguez, Rafael Amor-Castillo, Celso Martín Lara, María Ángeles Calero De Hoces, Francisca Mónica Flotation Fluorite Depressants Mechanical cell Pneumatic cell Fluorite is an important industrial mineral composed of calcium and fluorine (CaF2). This mineral is widely distributed through different deposits. However, in most cases, fluorite is tightly associated with gangue, such as calcite and quartz. In this paper, different depressants are tested in the flotation of fluorite in two different laboratory configurations—cell and column. Quebracho tree (QT) was tested as the main depressant in combination with white dextrin (WD), potato starch (PT), carboxymethyl cellulose (CMC), and sodium hexametaphosphate (SHMP). The optimum pulp pH of the flotation of fluorite was determined as approximately 9.5–10. The best results are obtained using a combination of quebracho and white dextrin as depressants, reaching 74% of fluorite grade for modified column flotation and 70.5% for cell flotation. Additionally, the metallurgical recovery obtained higher values when the flotation was carried out in the modified column and using the same combination of depressant agents—75% for modified column flotation and 60% for flotation cell 2020-11-06T12:26:31Z 2020-11-06T12:26:31Z 2020-08-15 info:eu-repo/semantics/article Corpas-Martínez, J.R.; Pérez, A.; Navarro-Domínguez, R.; Amor-Castillo, C.; Martín-Lara, M.A.; Calero, M. Comparison Between Performance of Fluorite Flotation Under Different Depressants Reagents in Two Pieces of Laboratory Equipment. Appl. Sci. 2020, 10, 5667. [doi:10.3390/app10165667] http://hdl.handle.net/10481/64107 10.3390/app10165667 eng http://creativecommons.org/licenses/by/3.0/es/ info:eu-repo/semantics/openAccess Atribución 3.0 España MDPI