Bikram Koirala, University of Antwerp, Belgium; Behnood Rasti, Helmholtz Institute Freiberg for Resource Technology, Germany; Zakaria Bnoulkacem, University of Antwerp, Belgium; Andréa de Lima Ribeiro, Yuleika Madriz, Erik Herrmann, Helmholtz Institute Freiberg for Resource Technology, Germany; Arthur Gestels, Thomas De Kerf, Koen Janssens, Gunther Steenackers, University of Antwerp, Belgium; Richard Gloaguen, Helmholtz Institute Freiberg for Resource Technology, Germany; Paul Scheunders, University of Antwerp, Belgium