Chromatographic fractionation of lithium isotope in aqueous solution using bifunctional ion-exchange resin |
| |
| Authors: | Yu Tachibana Vijay Vidyadharan Nair Sankaralingam Mohan Tatsuya Suzuki |
| |
| Affiliation: | 1. Department of Nuclear System Safety Engineering, Graduate School of Engineering, Nagaoka University of Technology , Nagaoka-shi, Niigata, Japan yu_tachibana@vos.nagaokaut.ac.jp;3. Environmental and Water Resources Engineering, Department of Civil Engineering, Indian Institute of Technology Madras , Chennai, India;4. Department of Nuclear System Safety Engineering, Graduate School of Engineering, Nagaoka University of Technology , Nagaoka-shi, Niigata, Japan |
| |
| Abstract: | ABSTRACT We have examined the effect of bifunctional group in the same cross-linkage degree on the Li isotope fractionation in the cation exchange reaction in the aqueous solutions ranging in temperature from 278 to 333 K. For this purpose, the sulfonated pyridine-styrene-divinylbenzene resin with the cross-linkage degree of 50 wt%, embedded in porous silica beads was successfully synthesized by a typical polymerization method. The isotope separation coefficients (ε) per unit mass (ε/ΔMass) was 8.1 × 10–4 at 298 K. Therefore, the effect of bifunctional group against the ε/ΔMass value has been discussed, compared with those of previous works. |
| |
| Keywords: | Pyridine-styrene-divinylbenzene resin with sulfo group embedded in porous silica beads lithium cation exchange reaction thermodynamic parameter chromatographic isotope separation |
|
|
