Article ID Journal Published Year Pages File Type
644298 Separation and Purification Technology 2007 7 Pages PDF
Abstract
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 β-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.
Related Topics
Physical Sciences and Engineering Chemical Engineering Filtration and Separation
Authors
, , , ,