THE EFFECT OF TEMPERATURE ON THE EXTRACTION OF URANIUM(VI) FROM NITRIC ACID BY TRI-n-AMYL PHOSPHATE

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Abstract

ABSTRACT Studies have been carried out on the effect of temperature on the extraction of U(VI) from nitric acid medium by tri-n-amyl phosphate/n-dodecane, measured as a function of the extractant concentration and aqueous phase acidity. The results indicate that the extraction is exothermic as in the case of tri-n-butyl phosphate. From the data available an effort has been made to calculate the equilibrium constant, the Gibbs energy change and the entropy change of the extraction reaction.

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