Synergistic extraction of lanthanoids with heterocyclic β-ketoenols and 2,4,6-tri(2-pyridyl)-1,3,5-triazine, TPTZ -: Part I:: Interaction of the extractants

被引：4
|
作者：
Bou-Maroun, Elias [1 ]
Arichi, Jaouad [1 ]
Boos, Anne [1 ]
Goetz-Grandmont, Genevieve J. [1 ]
机构：
[1] CNRS ULP, Lab Chim Analyt & Minerale, ECPM, IPHC,UMR 7178, F-67087 Strasbourg 2, France
来源：
SEPARATION AND PURIFICATION TECHNOLOGY | 2007年 / 53卷 / 03期
关键词：
D O I：
10.1016/j.seppur.2006.07.008
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
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.
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收藏
页码：259 / 265
页数：7
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