Research Article

Adsorption of Rare Earth Ce3+ and Pr3+ Ions by Hydrophobic Ionic Liquid

Table 4

Arrhenius activation energy for the elimination of trivalent Ce and Pr ions from the aqueous phase by IL.

IonConcentration (mg Lāˆ’1)Ea (kJ molāˆ’1)

Ce (III)1015.7
3026.9

Pr (III)1016.4
3029.1