Asep Rohiman1*, Buchari1, M.Bachri Amran1, Rusnadi1, Yana Maolana Syah2
1 Analytical Chemistry Division, 2Organic Chemistry Division, Faculty of Mathematics and Natural Sciences, Institute of Technology Bandung (ITB) – Indonesia
In recent years the separation chemistry of the rare-earth elements (REE) continue to receive a growing interest. The major reasons for this stand from the high application interest of the REE in many field. Elements such as Ce, La, Sm, Gd, and Nd and their compounds find various commercial applications. Gd is useful in nuclear technology for fuel element fabrication and as control rods, and as refractory material in ceramic industries.The pyrazolone and their derivates compound has been known that can be used for selective extraction and separations of metal ions such as REE. In this experiment, HPMBP has been synthesized and characterized by melting point, TLC, HPLC, FTIR, and NMR spectral data. The sorption of Ce3+, La3+, and Gd3+ by HPMBP impregnated resin has been studied. HPMBP impregnated resin was prepared by direct adsorption of chelating ligand onto macroporous support, Amberlite XAD-16. The adsorption of HPMBP on the macroporous support is prored by FTIR spectroscopy which showed the result of only weak chelating ligand-support interactions. Parameters such as the pH effect on the sorption of Ce3+, La3+, and Gd3+, and sorption capacity of the impregnated resin were investigated by batch method.
Keywords: HPMBP, REE, Separation, SIR