@inproceedings{inproceedingse71bef80, title = {Concentration of igneous phosphate ores via froth flotation: challenges and developments}, author = {Leal Filho, Laurindo de Salles and Martins, Marisa and Horta, Daniela Gomes}, year = {2010}, publisher = {The Australasian Institute of Mining and Metallurgy}, booktitle = {International Mineral Processing Congress -} }