Extraction of cadmium from phosphoric acid media by Di(2-Ethylhexyl) dithiophosphoric acid - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Solvent Extraction and Ion Exchange Année : 2008

Extraction of cadmium from phosphoric acid media by Di(2-Ethylhexyl) dithiophosphoric acid

Résumé

Di(2‐ethylhexyl) dithiophosphoric acid (D2EHDTPA) was examined for cadmium removal from phosphoric acid solutions. High extraction performance was achieved. By means of slope and saturation methods, the stoichiometry of the complex was postulated. Both methods indicated the presence of anhydrous CdR2 as being the metallic extracted complex, HR denoting the D2EHDTPA molecule. The stripping of cadmium from the organic phase was ensured by aqueous solutions of HCl; quantitative stripping was achieved with either HCl (4 M) or an HCl‐NaCl mixture.
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Dates et versions

hal-00793523 , version 1 (22-02-2013)

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M. Touati, M. Benna-Zayani, N. Kebir-Ariguib, M. Trabelsi, Arnaud Buch, et al.. Extraction of cadmium from phosphoric acid media by Di(2-Ethylhexyl) dithiophosphoric acid. Solvent Extraction and Ion Exchange, 2008, 26 (4), pp.420- 434. ⟨10.1080/07366290802182840⟩. ⟨hal-00793523⟩
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