Solid–liquid separation of V(V) from aqueous medium by 3-(2-hydroxy phenyl)-imino-1-phenyl butan-1-one Schiff base immobilized XAD-2 resin

Prepared 3-(2-hydroxy phenyl)-imino-1-phenyl butan-1-one impregnated Amberlite XAD-2 (HPIPB/XAD-2) was applied as solid support for gaining the optimum parameters of vanadium(V) adsorption that applied on ferruginous siltstone leach liquor. The ensuing techniques proton nuclear magnetic resonance (1H-NMR), Fourier-transform infrared spectroscopy (FT-IR), carbon-13 nuclear magnetic resonance (13C-NMR), thermogravimetric analysis (TGA), gas chromatography-mass spectrometry (GC–MS), and scanning electron microscopy with energy-dispersive X-ray analysis (SEM–EDX) were effectively utilized to explain the chemical structure and analysis of HPIPB/XAD-2. The batch extraction technique was employed to gain optimal experimental measurements, which were pH 1.5, 20 min agitation time, 300 mg/L initial vanadium concentration, 0.1 mg HPIPB/XAD-2 dose, and 398 K. It was shown that the maximal economic adsorption potential of HPIPB/XAD-2 was 71.25 mg/g. V(V) adsorption kinetics matched the kinetic pattern of the pseudo-second-order. The data fit well with the Langmuir model. The thermodynamic control factors were computed and exposed as endothermic, randomness, and spontaneous. The required energy activation of V(V) was 5.88 kJ/mol. Vanadium(V) was eluted to 99.0% efficiency from the loaded HPIPB/XAD-2 using 0.5 M NaOH. Finally, ideal variables were utilized to recover or extricate V(V) from the Abu Zenima ore material liquor, which yielded a vanadium concentrate (NH4VO3) with a 42.6% vanadium content. Vanadium purity was 97.9%. Graphical abstract: [Figure not available: see fulltext.].