Chromatographic fractionation of lithium isotope in aqueous solution using bifunctional ion-exchange resin. Issue 12 (12th August 2020)

• Record Type: Journal Article
• Authors: Tachibana, Yu; Vidyadharan Nair, Vijay; Mohan, Sankaralingam; Suzuki, Tatsuya
• Is Part Of: Separation science and technology. Volume 55:Issue 12(2020)
• Page Start: 2183
• Page End: 2192
• Publication Date: 2020-08-12
• Subjects: Pyridine-styrene-divinylbenzene resin with sulfo group embedded in porous silica beads -- lithium -- cation exchange reaction -- thermodynamic parameter -- chromatographic isotope separation; Separation (Technology) -- Periodicals; 660.284205
• DOI: 10.1080/01496395.2019.1607874
• Languages: English
• ISSNs: 0149-6395

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.