EFFECT OF pH IN THE SYNTHESIS OF ORGANO-CLAYS FOR RARE EARTHS REMOVAL. - Iannicelli-Zubiani, Elena Maria; Cristiani, Cinzia; Dotelli, Giovanni; Stampino, Paola Gallo; Pelosato, Renato; Finocchio, Elisabetta (Environmental Engineering & Management Journal (EEMJ), 2017)