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KMID : 0615219940190010157
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Journal of Kwangju Health
1994 Volume.19 No. 1 p.157 ~ p.175
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A Study on the adsorption of Sm, Co, U using OenNtn synthetic resin
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노기환/Rho GH
김준태/Kim JT
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Abstract
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The ion exchange resins have been synthesized from chloromethyl styrene-1,4-divinylbenzene(DVB) with 1%, 5%, and 20%-crosslinking and macrocyclic ligand of cryptand type by copolymerization method and the adsorption characteristics of uranium(Ⅵ), cobalt(Ⅱ) and samarium(Ⅲ) metallic ions have been investigated in various experimental conditions.
The correlation between the adsorption characteristics of rare earths and transition metal on the resins and stability constants of complexes with macrocyclic ligand have been examined.
The UO_2^(2+) aqueous solutions are not adsorbed on the resins below pH 3.0 but the power of adsorption of UO_2^(2+) increased rapidly above pH 4.0.
The adsorption power was in the order of 1%, 5% and 20%-crosslinked resin, but adsorptive characteristics of resins decreased in proportion to the order of dielectric constants of solvents.
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