Title of article :
Isotope effects of neodymium in different ligands exchange systems studied by ion exchange displacement chromatography
Author/Authors :
Ismail, Ibrahim Cairo University - Chemical Engineering Department, Egypt , Fawzy, Ahmed S. Cairo University - Chemical Engineering Department, Egypt , Ahmad, Mohammad I. Egyptian Atomic Energy Authority, Egypt , Aly, Hisham F. Egyptian Atomic Energy Authority, Egypt , Nomura, Masao Tokyo Institute of Technology - Research Laboratory for Nuclear Reactors, Japan , Fujii, Yasuhiko Tokyo Institute of Technology - Research Laboratory for Nuclear Reactors, Japan
Abstract :
The isotope effects of neodymium in Nd-glycolate ligand exchange system were studied by using ion exchange chromatography. The separation coefficients of neodymium isotopes, ε’s, were calculated from the observed isotopic ratios at the front and rear boundaries of the neodymium adsorption band. The values of separation coefficients of neodymium isotopes, ε’s, for the Nd-glycolate ligand exchange system were compared with those of Nd-malate and Nd-citrate, which indicated that the isotope effects of neodymium as studied by the three ligands takes the following direction Malate Citrate Glycolate. This order agrees with the number of available sites for complexation of each ligand. The values of the plate height, HETP of Nd in Nd-ligand exchange systems were also calculated.
Keywords :
Neodymium isotopes , Ion exchange , Chromatography , Separation , Isotope effects
Journal title :
Journal of Advanced Research
Journal title :
Journal of Advanced Research
