SOLVENT-IMPREGNATED RESINS VIA ACID-BASE INTERACTION OF POLY(4-VINYLPYRIDINE) RESIN AND DI(2-ETHYLHEXYL) DITHIOPHOSPHORIC ACID

Authors
WARSHAWSKY A STRIKOVSKY AG JERABEK K CORTINA JL
Citation
A. Warshawsky et al., SOLVENT-IMPREGNATED RESINS VIA ACID-BASE INTERACTION OF POLY(4-VINYLPYRIDINE) RESIN AND DI(2-ETHYLHEXYL) DITHIOPHOSPHORIC ACID, Solvent extraction and ion exchange, 15(2), 1997, pp. 259-283
Citations number
21
Categorie Soggetti
Chemistry
Journal title
Solvent extraction and ion exchange → ACNP
ISSN journal
07366299
Volume
15
Issue
2
Year of publication
1997
Pages
259 - 283
Database
ISI
SICI code
0736-6299(1997)15:2<259:SRVAIO>2.0.ZU;2-K
Abstract
The immobilization of a strong metal chelator di(2-ethylhexyl) dithiop hosphoric acid (DEHTPA) on poly(4-vinylpridine) macroporous resin (Rei llex (TM) HP and Reillex (TM) 425) has been investigated DEHTPA (ligan d) adsorption mechanism was proposed on the basis of the SIR morpholog y and IR spectrophotometry study. Analysis of the ligand distribution between the poly(4-vinylpyridine) support and the aqueous phase was pe rformed using curve-fitting computerized method. Equilibrium constants characterizing the DEHTPA-pyridine group interaction have been evalua ted. Pore volume increase, due to this interaction, are noted. Prelimi nary metal extraction studies were performed.