Solvent extraction of Thorium(IV) from chloride acidic solution using Schiff base

Abstract

Thorium(IV) is extracted from chloride medium by solvent extraction using a prepared Schiff base chelating agent, (E)-4-(2-hydroxy phenyl imino) pentane-2-one (AcPh) that is synthesized and characterized by FT-IR, 1 H-NMR and elemental analysis. The obtained optimum extraction parameters were 0.02M AcPh/chloroform and diethyl ether ratio mixture, pH 6.5, 3:1 aqueous to organic phase ratio for 5 min. contact time at room temperature. The thorium(IV) was then stripped into aqueous media containing 0.5 M HNO 3 solution using of 1:2 aqueous to organic phase ratio for 7 min. contact time at room temperature.

Date seed as an efficient, eco-friendly, and cost-effective bio-adsorbent for removal of thorium ions from acidic solutions

“…Several techniques including chemical precipitation, solvent extraction, electro floatation, ion exchange, reverse osmosis and adsorption have been developed to recover thorium from aqueous solutions (Gado et al, 2019;Orabi et al, 2017). At low concentrations, separation/preconcentration through adsorption of long-lived radioactive radionuclides such as thorium from aqueous solution is important in nuclear/radiation chemistry and environmental/waste treatment chemistry (Anirudhan et al, 2010).…”