Efficacy of extraction of U(VI) by liquid emulsion membrane (LEM) using TOPO, D2EHPA and TOA

被引：3
作者：
Das, Diptendu [1 ]
Juvekar, V. A. [1 ]
Bhattacharya, R. [2 ]
机构：
[1] Indian Inst Technol, Dept Chem Engn, Bombay 400076, Maharashtra, India
[2] Atom Energy Regulatory Board, Bombay, Maharashtra, India
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2015年 / 304卷 / 03期
关键词：
Uranium (VI); TOPO; D2EHPA; TOA; Liquid emulsion membranes (LEM); URANIUM EXTRACTION; TRIOCTYLPHOSPHINE OXIDE; PHOSPHORIC-ACID; RECOVERY; COEXTRACTION; SEPARATION; THORIUM;
D O I：
10.1007/s10967-015-3946-3
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The response surface methodology is used to obtain optimal rate and extent of extraction of low concentration U(VI) (a parts per thousand currency sign100 mg/L) by liquid emulsion membrane technique. Three different ligands viz. Tri-n-octyl phosphine oxide (TOPO), Tri-n-octyl amine (TOA) and Di-(2-ethylhexyl)phosphoric acid (D2EHPA), are used. 2(3) factorial design is applied to generate second order regression equation for studying the effect of concentration of ligand, surfactant and feed acidity. The regression model is in good agreement with the experimental data for all ligands. The rate of extraction of U(VI) by LEM is found to be in the order TOA > TOPO > D2EHPA.
引用
收藏
页码：1261 / 1274
页数：14
相关论文
共 20 条
[1]  
Abdelziz Y, 2012, J AM SCI, V8, P1292
[2]   Emulsion liquid membrane for heavy metal removal: An overview on emulsion stabilization and destabilization [J].
Ahmad, A. L. ;
Kusumastuti, A. ;
Derek, C. J. C. ;
Ooi, B. S. .
CHEMICAL ENGINEERING JOURNAL, 2011, 171 (03) :870-882
[3]   Pre-concentration of Uranium (VI) using bulk liquid and supported liquid membrane systems optimized containing bis(2-ethylhexyl) phosphoric acid as carrier in low concentrations [J].
Candela, Angelica M. ;
Benatti, Viola ;
Palet, Cristina .
SEPARATION AND PURIFICATION TECHNOLOGY, 2013, 120 :172-179
[4]   Comparative studies on co-extraction of uranium(VI) and different mineral acid from aqueous feed solutions using TBP, TOPO and TOA [J].
Das, Diptendu ;
Juvekar, V. A. ;
Roy, S. B. ;
Bhattacharya, R. .
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 2014, 300 (01) :333-343
[5]  
Das Diptendu, 2015, PROBLEM ASS IN PRESS
[6]   Uranium extraction from gattar sulfate leach liquor using aliquat-336 in a liquid emulsion membrane process [J].
El Sayed, MS .
HYDROMETALLURGY, 2003, 68 (1-3) :51-56
[7]   Direct uranium extraction from dihydrate and hemi-dihydrate wet process phosphoric acids by liquid emulsion membrane [J].
El-Hazek, NT ;
El Sayed, MS .
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 2003, 257 (02) :347-352
[8]   Recovery of uranium from thorium in hydrochloric acid medium by liquid emulsion membranes containing trioctylphosphine oxide [J].
El-Reefy, SA ;
Selim, YT ;
Aly, HF .
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 1998, 228 (1-2) :21-25
[9]   Equilibrium and kinetic studies on the separation of uranium and thorium from nitric acid medium by liquid emulsion membrane based on trioctylphosphine oxide extractant [J].
ElReefy, SA ;
Selim, YT ;
Aly, HF .
ANALYTICAL SCIENCES, 1997, 13 (03) :333-337
[10]   Uranium extraction enhancement form phosphoric acid by emulsion liquid membrane [J].
Elsayed, H. M. ;
Fouad, E. A. ;
El-Hazek, N. M. T. ;
Khoniem, A. K. .
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 2013, 298 (03) :1763-1775
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