SULFONATION AND PERFORMANCE OF SURFACE SULFONATED 5 AND 10 /μm DIAMETER, HIGHLY CROSSLINKED POROUS AND 15 μm DIAMETER, 10% CROSSLINKED GEL TYPE RESINS
作者:
Ali Mardan*,
J. O. Liljenzin,
期刊:
Solvent Extraction and Ion Exchange
(Taylor Available online 1990)
卷期:
Volume 8,
issue 1
页码: 137-150
ISSN:0736-6299
年代: 1990
DOI:10.1080/07366299008917990
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Improved column efficiencies and decreased tailing of Eu3+and Lu3+elution peaks with 2-hydroxy isobutyric acid, HIBA, were obtained by partial sulfonation of experimental monodisperse 5 and 10 μm, highly (>40%) crosslinked porous beads. Blocking of micropores of such highly crosslinked porous gels with n-dodecane before sulfonation further reduces the extent of sulfonation and improves column efficiency. Simultaneous choice of a smaller particle size and less sulfonation improves the column performance. The normalized performance of a monodisperse 10 μm, highly crosslinked porous resin of 0.058 meq/ml capacity was similar to that of a monodisperse 15 μm, 10% crosslinked surface sulfonated gel type resin of 0.031 meq/ml capacity for Lu3+/HIBA.
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