Albuquerque, Rodrigo Oscar dePeres, Antônio Eduardo ClarkAquino, José Aury dePraes, Plínio EduardoPereira, Carlos Alberto2015-04-072015-04-072012ALBUQUERQUE, R. O. et al. Pilot scale direct flotation of a phosphate ore with silicate-carbonate gangue. Procedia Engineering, v. 46, p. 105-110, 2012. Disponível em: <http://www.sciencedirect.com/science/article/pii/S1877705812045158>. Acesso em: 06 mar. 2015.1877-7058http://www.repositorio.ufop.br/handle/123456789/4940The present pilot scale study addresses the direct flotation route for the concentration of a phosphate ore bearing a silicate-carbonate gangue. The target was to selectively separate apatite from a phosphate ore bearing silicate/carbonate gangue using flotation columns. Based on the results of a previous laboratory scale investigation, a reagents scheme was selected and tested, using, under alkaline conditions, corn starch and a natural collector extracted from the distillation of coconut oil. An open rougher-cleaner circuit yielded a final concentrate reaching 30.5% P2O5 grade, at 80.8% recovery level.en-USColumn flotationFlotation reagentsFlotation collectorsAnionic flotationPhosphate flotationArtigo publicado em periodicoThis article is published under the terms of the Creative Commons Attribution-NonCommercial-No Derivatives License (CC BY NC ND). Fonte: o próprio artigo.https://doi.org/10.1016/j.proeng.2012.09.452