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Selective separation of In(III), Ga(III), and Zn(II) from dilute solution using solvent‐impregnated resin containing Di(2‐ethylhexyl) phosphoric acid
Author(s) -
Liu J. S.,
Chen H.,
Guo Z. L.,
Hu Y. C.
Publication year - 2006
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.23042
Subject(s) - phosphoric acid , aqueous solution , extraction (chemistry) , solvent , metal ions in aqueous solution , metal , chemistry , solvent extraction , nuclear chemistry , materials science , inorganic chemistry , chromatography , organic chemistry
The aim of this work was to study the separation of In(III), Ga(III), and Zn(II) from sulfate solution using solvent‐impregnated resin containing di(2‐ethylhexyl) phosphoric acid. The influence of pH on the extraction of each metal was determined. Extraction isotherms were then studied at selected pH. Results showed that In(III) can be first extracted from aqueous solutions at pH 2 using the resin, then Ga(III) and Zn(II) coextracted at pH 3, and the separation can be carried out by using different concentrations of eluents. Loaded resins can be regenerated, and the metals can be recovered selectively. Two fixed‐bed columns arranged in series were successfully used for the separation and recovery of these three metal ions from multi‐component solution. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 100: 253–259, 2006