Carbamoylalkylphosphonates Type Ligand for Uranium Extraction from Phosphates Ores

Raphaël Turgis (1) , Antoine Leydier (2) , Guilhem Arrachart (1) , Fabien Burdet (2) , Sandrine Dourdain (1) , Gilles Bernier (2) , Manuel Miguirditchian (2) , S Pellet-Rostaing (1)

1 LTSM - Tri ionique par les Systèmes Moléculaires auto-assemblés
2 DMRC - Département de recherche sur les procédés pour la mine et le recyclage du combustible

Carbamoylphosphonic acid and carbamoylphosphonate ligands have been synthesized and studied for uranium extraction from phosphates ores. From a structure-selectivity approach, the molecular design of such ligands was optimized leading to a specific one called DEHCNPB which exhibits outstanding results for the selective extraction, and quantitative recovery of uranium in phosphoric acid compared to the URPHOS reference system.

Mots clés: Uranium extraction; Bifunctional extractants; Phosphoric acid; DEHCNPB

Domaines: Chimie organique; Chimie de coordination

Raphaël Turgis, Antoine Leydier, Guilhem Arrachart, Fabien Burdet, Sandrine Dourdain, et al.. Carbamoylalkylphosphonates Type Ligand for Uranium Extraction from Phosphates Ores. Procedia Engineering, 2016, SYMPHOS 2015 - 3rd International Symposium on Innovation and Technology in the Phosphate Industry, 138, pp.258-266. ⟨10.1016/j.proeng.2016.02.083⟩. ⟨hal-02062545⟩