Removal of lanthanum and gadolinium from nitrate medium using Aliquat-336 impregnated onto Amberlite XAD-4

Modeling of Adsorption of Bi(III) from Nitrate Medium by Impregnated Resin D2EHPA/XAD-1180

“…The negative sign of the enthalpy variation value showed the exothermic character of the liquid-solid extraction and sorption process. This result is similar to the previous paper [3]. While the negative sign of the free energy variation value indicated the spontaneous phenomenon of bismuth(III) sorption and the value sign of the entropy variation suggested that the system exhibit a disorder.…”

“…The batch sorption process of bismuth(III) was analyzed using Lagergren first order and the pseudo second order kinetics model [6,7]. The equation of Lagergren was widely used in liquid-solid extraction for sorption of solute from aqueous or organic solution [3]. The Legergren first order model was given by the Equation (9) …”

Sorption of SPADNS azo dye on polystyrene anion exchangers: Equilibrium and kinetic studies

“…R L values indicate the type of isotherm to be irreversible (R L = 0), favourable (0 < R L < 1), linear (R L = 1) or unfavourable (R L > 1) [39,[63][64][65].…”

Solid–liquid extraction of heavy rare-earths from phosphoric acid solutions using Tulsion CH-96 and T-PAR resins

“…An extraction resin containing PC 88A was used by Park et al to separate Gd and Tb [16,17] employing extraction chromatography method. El-Sofany [18] investigated the removal of lanthanum(III) and gadolinium(III) from nitrate medium using Amberlite XAD-4 resin impregnated with Aliquat-336.…”