SYNTHESIS AND CHARACTERIZATION OF TOPO AND HDADMDPA. APPLICATION IN URANIUM (VI) EXTRACTION
SYNTHESE ET CARACTERISATION DU TOPO ET DE L’AHDADMDP. APPLICATION A L’EXTRACTION DE L’URANIUM (VI)
ABDELHAKIM KADOUS 1, LAALDJA MEDDOUR-BOUKHOBZA 2, MOHAMED AMINE DIDI 1*, DIDIER VILLEMIN 3 (1) UNIVERSITÉ DE TLEMCEN, DÉPARTEMENT DE CHIMIE, FACULTÉ DES SCIENCES ; B.P. 119 TLEMCEN, ALGÉRIE.
(2) USTHB, DÉPARTEMENT DE CHIMIE; B.P. 32 ELALIA, BAB-EZZOUAR, ALGER, ALGÉRIE
(3) ENSICAEN, UNIVERSITÉ DE CAEN - BASSE NORMANDIE, LCMT, UMR CNR
The present work concerns the synthesis of two extractive agents: trioctyl phosphine oxide (TOPO) and [(hexadecylamino)di(methylene)]bis(phosphonic acid) (HDADMDPA) and their applications in the extraction of uranium (VI).The influence of extraction time, extractant/metal molar ratio and acid concentration in aqueous phase have been studied. The synthesis of TOPO has reached a yield of 67% and that of HDADMDPA was 73%. The analysis of synthetic products has proved that the desired compounds were synthesized.
The extraction yield of uranium (VI) by HDADMDPA in hydrochloric acid was 32% and 56% with TOPO.
