Synergistic extraction of lanthanoids with heterocyclic beta-ketoenols and 2,4,6-tri(2-pyridyl)-1,3,5-triazine, TPTZ - Part I: Interaction of the extractants.
Fiche publication
Date publication
mars 2007
Auteurs
Membres identifiés du Cancéropôle Est :
Dr BOOS Anne
Tous les auteurs :
Bou-Maroun E, Arichi J, Boos A, Goetz-Grandmont GJ
Lien Pubmed
Résumé
The distribution of 2,4,6-tri(2-pyridyl)-1,3,5-triazine (TPTZ), a polydentate neutral donor ligand, alone or in the presence of heterocyclic beta-ketoenol extractants (HL or HL-10-LH): 1-phenyl-3-methyl-4-benzoylpyrazol-5-one (HPMBP), 1,12-bis(1 '-phenyl-3 '-methyl-5 '-hydroxy-4 '-pyrazolyl)-dodecane-1,12-dione (HL-10-LH), 3 -phenyl-4-benzoyl-isoxazol-5-one (HPBI) or 3-phenyl-4-p-tert-butylbenzoyl-isoxazol-5-one (HPtbBI), between a chloroform phase and a nitric aqueous phase [(Na,H)NO3] = 0.1 M has been studied. The TPTZ partition constant and the speciation of the TPTZ species at various pHs have been determined. The stoichiometries of the interaction complexes have been proposed and the corresponding interaction constants have been calculated. (c) 2006 Elsevier B.V. All rights reserved.
Référence
Sep Purif Technol. 2007 Mar 1;53(3):259-65.