POLY(AMINOMETHYLENEPHOSPHONIC) ACID FOR SOLVENT EXTRACTION OF METAL IONS

  • M’HAMED KAID
    Tlemcen University, Faculty of Sciences, Department of Chemistry, Laboratory of Separation & Purification Technology Box 119, Algeria
  • MOHAMED AMINE DIDI
    Tlemcen University, Faculty of Sciences, Department of Chemistry, Laboratory of Separation & Purification Technology Box 119, Algeria
    madidi13@yahoo.fr
  • DIDIER VILLEMIN
    Université de Caen, Laboratoire de Chimie Moléculaire et Thioorganique, UMR CNRS 6507, INC3M, FR 3038, ENSICAEN & Centre de Recherche, 14050 Caen, France

Abstract

Diaminododecyltetramethylenetetraphosphonic acid (DADTMTPA) has been investigated in liquid - liquid extraction of Zn (II) and Cu (II) in acetate media. The extraction of both cations was carried out in different media with the addition of CH3COONa, CH3COOH, HCl and H2SO4 at different pH values. The maximum extraction yield for copper is 70% after addition of 10 mg of sodium acetate and for zinc is 30% after addition of acetic acid at pHi = 5.5, in one step.

Cuvinte cheie

copper (II) DADTMTPA solvent extraction zinc (II) diaminododecyltetramethylenetetraphosphonic acid