Scientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry (Sep 2011)

POLY(AMINOMETHYLENEPHOSPHONIC) ACID FOR SOLVENT EXTRACTION OF METAL IONS

  • M’hamed Kaid,
  • Mohamed Amine Didi,
  • Didier Villemin

Journal volume & issue
Vol. 12, no. 3
pp. 269 – 280

Abstract

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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.

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