Synthesis and Characterization of Some Resins to Separate Some Radioactive Elements from Egyptian Monazite

Abstract

Some synthetic sorbents were successfully prepared using different methods for separation and removal of some elements namely; U6+, Th4+ and Nd3+ from aqueous solutions. The chelating organic material such as fumaric acid can be copolymerized with an inert polymeric support like polystyrene to form fumarated polystyrene microspheres as a novel chelating polymeric resin. Also, another chelating polymeric material was prepared using the chelating properties of diethanolamine (DEA) to make a chemical modification for novolac resin. Finally, a direct reaction was employed for fully substitution of hydrogen atoms of amino groups on chitosan by methylene phosphonic groups under drastic conditions. Abundant of methylene groups increases the hydrophobic property of modified chitosan and leads to its insolubility under a wide pH range. This resin was applied as a novel sorbent for metal ions removal using batch processes. The performance of these synthetic sorbents in metal ions re