Abstract
A selective chelating resin was prepared by loading pyrogallolsulphonic acid (PGS) on a conventional anion-exchange resin, Seralite SRA-400. The loaded resin was stable in 0.1 M HCl. Its equilibrium sorption capacity as a function of pH and the exchange kinetics for various metal ions were studied. The loaded resin showed high selectivity towards MoVI, VV and FeIII. The sorption capacities of the PGS-loaded resin for FeIII, VV and MoVI were 0.69, 0.75 and 0.4 mmol g–1, respectively. The loaded resin was used for the separation and enrichment of these metals.
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