Liquid-liquid extraction studies with bis-β-diketones

Wenzel, Marco, Bray, David J., Clegg, Jack K., Gloe, Kerstin, Gloe, Karsten, Lindoy, Leonard F., and Meehan, George V. (2008) Liquid-liquid extraction studies with bis-β-diketones. In: Proceedings of the International Solvent Extraction Conference - ISEC 2008 . pp. 1493-1498. From: International Solvent Extraction Conference - ISEC 2008, 15-19 September 2008, Tucson, Arizona.

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1,4- (H₂L¹) and 1,3-phenylene (H₂L²) linked bis-β-diketone ligands as well as corresponding metal complexes of composition M₃(L¹)₃B₆ and M₂(L²)₂B₂ with B = pyridine (Py) or 4-ethylpyridine (EtPy) have been synthesised. Extraction studies involving the systematic variation of the metal, bis-β-Bdiketone and 4-ethylpyridine concentrations have been performed for Co(Il) and Zn(II) in order to probe the solution stoichiometries of the extracted species. Significant synergistic effects were observed when EtPy was present along with the bis-β-diketone ligand in the organic (CHCI₃) phase. Competitive extraction studies (water/chloroform) demonstrated a clear uptake preference for Cu(II) over Co(II), Ni(II), Zn(Il) and Cd(II).

Item ID: 7658
Item Type: Conference Item (Research - E1)
ISBN: 1-894475-80-1
Keywords: beta-diketone; metal extraction; hydrometallurgy
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Date Deposited: 21 Jul 2010 03:43
FoR Codes: 03 CHEMICAL SCIENCES > 0302 Inorganic Chemistry > 030207 Transition Metal Chemistry @ 100%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970103 Expanding Knowledge in the Chemical Sciences @ 100%
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