Nanofiltration assisted by complexation:: A promising process for the separation of trivalent long-lived minor actinides from lanthanides

被引：8

作者：

Favre-Reguillon, Alain

Sorin, Antoine

Pellet-Rostaing, Stephane

Bernier, Gilles

Lemaire, Marc

机构：

[1] Conservatoire Natl Arts & Metiers, CNRS, UMR 7084, Chim Organ Lab, F-75003 Paris, France

[2] Univ Lyon 1, CNRS, UMR 5181, Lab Catalyse & Synth Organ,CPE, F-69622 Villeurbanne, France

[3] CEA Valrho Marcoule, DEN DRCP SCPS LCSE, F-30207 Bagnols Sur Ceze, France

来源：

COMPTES RENDUS CHIMIE | 2007年 / 10卷 / 10-11期

关键词：

americium; europium; nanofiltration; separation; membrane permeability; isotopic dilution;

D O I：

10.1016/j.crci.2007.01.012

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

For the Am/Eu separation, the chelating agent diethylenetriaminepentaacetic acid (DTPA) was used to selectively decrease the permeability of Am across the nanofiltration membrane Desal GH. Using an Am/Eu/DTPA mixture, we have showed that the difference of permeability can be explained by the chemical speciation in solution. The membrane selectivity is thus determined by the difference of the stability constants of the 1: 1 complexes of Am and Eu with DTPA. The influence of DTPA concentration on the separation factor (SF) was then investigated. The SF determined with an Eu/Am initial ratio of 3700 varied within the range of 1.23.5.

引用

收藏

页码：994 / 1000

页数：7

相关论文

共 30 条

[1] Streaming potential measurements to assess the variation of nanofiltration membranes surface charge with the concentration of salt solutions [J].

Afonso, MD ;

Hagmeyer, G ;

Gimbel, R .

SEPARATION AND PURIFICATION TECHNOLOGY, 2001, 22-3 (1-3) :529-541

[2] Transport of Americium(III) through a supported liquid membrane containing N,N,N′,N′-tetraoctyl-3-oxapentane, diamide (TODGA) in n-dodecane as the carrier [J].

Ansari, S. A. ;

Mohapatra, P. K. ;

Prabhu, D. R. ;

Manchanda, V. K. .

JOURNAL OF MEMBRANE SCIENCE, 2006, 282 (1-2) :133-141

[3] N,N,N′,N′-Tetraoctyl diglycolamide (TODGA):: a promising extractant for actinide-partitioning from high-level waste (HLW) [J].

Ansari, SA ;

Pathak, PN ;

Manchanda, VK ;

Husain, M ;

Prasad, AK ;

Parmar, VS .

SOLVENT EXTRACTION AND ION EXCHANGE, 2005, 23 (04) :463-479

[4] Effect of DTPA on the extractions of actinides(III) and lanthanides(III) from nitrate solution into TODGA/n-dodecane [J].

Apichaibukol, A ;

Sasaki, Y ;

Morita, Y .

SOLVENT EXTRACTION AND ION EXCHANGE, 2004, 22 (06) :997-1011

[5] Retention of ions in nanofiltration at various ionic strength [J].

Chaufer, B ;

RabillerBaudry, M ;

Guihard, L ;

Daufin, G .

DESALINATION, 1996, 104 (1-2) :37-46

[6] The separation of Am from lanthanides by purified Cyanex 301 extraction [J].

Chen, J ;

Zhu, YJ ;

Jiao, RZ .

SEPARATION SCIENCE AND TECHNOLOGY, 1996, 31 (19) :2723-2731

[7] Relating nanofiltration membrane performance to membrane charge (electrokinetic) characteristics [J].

Childress, AE ;

Elimelech, M .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2000, 34 (17) :3710-3716

[8] Effect of solution chemistry on the surface charge of polymeric reverse osmosis and nanofiltration membranes [J].

Childress, AE ;

Elimelech, M .

JOURNAL OF MEMBRANE SCIENCE, 1996, 119 (02) :253-268

[9] Separation of americium(III) from lanthanides(III) by nanofiltration-complexation in aqueous medium [J].

Chitry, F ;

Pellet-Rostaing, S ;

Guy, A ;

Foos, J ;

Lemaire, M .

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 2002, 251 (01) :155-157

[10] Selective concentration of uranium from seawater by nanofiltration [J].

Favre-Reguillon, A ;

Lebuzit, G ;

Foos, J ;

Guy, A ;

Draye, M ;

Lemaire, M .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2003, 42 (23) :5900-5904