Infiuence of temperature on soivent extraction of metais by alkylphosphoric acids

Using the experimental data, one considers the temperature effect on the solvent extraction of metals, including 137Cs, 85Sr, Cd, In, Sc, Zr, Hf, V, Th, from aqueous solutions by alkytphosphoric acids. It is shown that the constant of metal extraction by HDEHP sotutions in different organic solvents may increase, decrease or be steady with temperature growth. The extraction constant doesn't vary with temperature, nn case the structure of the complex being extracted is not changed, and grows, when the octahedral complex being formed at temperature increase