Extraction of uranyl nitrate, sulphate and chloride with tri-n-octyl amine (TOA) from aqueous solutions

Autor: J. J. Čomor, M Djordje Petkovic
Jazyk: angličtina
Rok vydání: 2001
Předmět:
Zdroj: Journal of the Serbian Chemical Society, Vol 66, Iss 7, Pp 443-449 (2001)
Journal of the Serbian Chemical Society
ISSN: 1820-7421
0352-5139
Popis: 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 4.2x104 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.
Databáze: OpenAIRE