Chelation ion-exchange properties of salicylic acid-urea-formaldehyde copolymers |
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| Authors: | R M Joshi and M M Patel |
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| Institution: | (1) Department of Chemistry, Sardar Patel University, 388120 Vallabn Vidyanagar, India |
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| Abstract: | Chelation ion-exchange properties of copolymers prepared from salicylic acid, urea and formaldehyde by condensation in presence
of acid catalyst were studied for Cu2+, Fe3+, UO2+, Mn2+,Zn2+ and Co2+ ions. A batch equilibration method was adopted to study the selectivity of metal ion uptake. This method involved the measurement
of distribution of a given metal between the copolymer sample and a solution containing the metal ions. The study was carried
out over a wide pH range and in media of various ionic strengths. The copolymer showed a higher selectivity for UO2
2+, Cu2+ and Fe3+ ions than Mn2+, Co2+ and Zn2+ ions. |
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| Keywords: | Chelation ion exchange batch equilibration distribution ratio |
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