SYNTHESIS AND CHARACTERIZATION OF TOPO AND HDADMDPA. APPLICATION IN URANIUM (VI) EXTRACTION<br/> SYNTHESE ET CARACTERISATION DU TOPO ET DE L’AHDADMDP. APPLICATION A L’EXTRACTION DE L’URANIUM (VI)

  • ABDELHAKIM KADOUS
    UNIVERSITÉ DE TLEMCEN, DÉPARTEMENT DE CHIMIE, FACULTÉ DES SCIENCES ; B.P. 119 TLEMCEN, ALGÉRIE
  • LAALDJA MEDDOUR-BOUKHOBZA
    USTHB, DÉPARTEMENT DE CHIMIE; B.P. 32 ELALIA, BAB-EZZOUAR, ALGER, ALGÉRIE
  • MOHAMED AMINE DIDI
    UNIVERSITÉ DE TLEMCEN, DÉPARTEMENT DE CHIMIE, FACULTÉ DES SCIENCES ; B.P. 119 TLEMCEN, ALGÉRIE
  • DIDIER VILLEMIN
    ENSICAEN, UNIVERSITÉ DE CAEN - BASSE NORMANDIE, LCMT, UMR CNR

Abstract

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.

Cuvinte cheie

HDADMDPA TOPO Liquid-liquid extraction Uranium (VI) Extracting agents’ synthesis