Lev Filippov currently works at the GeoResources Laboratory, University of Lorraine. Lev does research in Minerals Engineering, Mineral processing and Chemical Engineering. The main research interests are related to : - Fine particle flotation : experimental study and modelling of the synergistic effects in mixed collectors systems, especially with non ionic reagent - Reverse cationic flotation of iron ores with complex gangue minerals. - Modelling, Scale-up and on-site tests of Column flota