1. Instituto Tecnológico Vale, Minas Gerais, Brasil
2. Laboratory of Transport Phenomena and Chemistry of Interfaces, Department of Mining and Petroleum Engineering, University of São Paulo, São Paulo, Brazil
3. Vale S.A., Prédio 1, Mina de Águas Claras, Minas Gerais, Brasil
4. Laboratory for Surface Chemistry, Coordination of Mineral Processing – Center for Mineral Technology, CETEM, Avenida Pedro Calmon, 900, Cidade Universitária, Rio de Janeiro, Brasil