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Adsorption behavior of metal ions by amidoxime chelating resin

✍ Scribed by Bernabé L. Rivas; Hernán A. Maturana; Sandra Villegas

Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
140 KB
Volume
77
Category
Article
ISSN
0021-8995

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✦ Synopsis

The adsorption properties of poly(acrylamidoxime) chelating resin for Cu(II), Cd(II), Hg(II), Zn(II), Pb(II), Cr(III), and U(VI) are investigated by the batch technique. Based on the research results of the binding capacity effect of the pH value on sorption kinetic experiments, it is shown that this resin has higher binding capacity to uranyl ions, fast kinetics, and very good selectivity from binary metal ion mixtures with Cu(II) and Pb(II). The uranyl ion sorption strongly depends on the pH value of the solution. The highest value of 99% is at pH 5, but at pH 1 there is no retention. The adsorbed UO 2 2ϩ can be eluted by sulfuric acid and sodium carbonate.

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