Extraction of uranyl nitrate, sulphate and chloride with tri-n-octyl amine (TOA) from aqueous solutions
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Extraction of uranyl nitrate, chloride and sulphate with tri-n-octyl amine (TOA) in benzene as a function of the TOA concentration has been studied. The concentration based extraction equilibrium constants were calculated from the distribution data of the uranyl salts, fitting the parameters of a chemical model to the experimentally obtained extraction isotherms. The calculated equilibrium constants are 46.5, 89.4 and 4.2x 10(4) for uranyl nitrate, chloride and sulphate, respectively. These values are in good agreement with the previously reported extraction equilibrium constants calculated by the inflection point method.
Кључне речи:uranyl nitrate / uranyl chloride / uranyl sulphate / tri-n-octyl amine / extraction equilibria
Извор:Journal of the Serbian Chemical Society, 2001, 66, 7, 443-449
ISSN: 0352-5139 (print)