Radiation chemistry of cis-syn-cis dicyclohexano-18-crown-6 (DCH18C6):: Acidity and uranyl nitrate dependence

被引：14

作者：

Draye, Michellne ^{[1
]}

Favre-Reguillon, Alain ^{[2
]}

Faure, Rene ^{[3
]}

Lemaire, Marc ^{[4
]}

机构：

[1] Univ Savoie Polytech Savoie, Lab Chim Mol & Environm EA1651, F-73376 Le Bourget Du Lac, France

[2] Conservatoire Natl Arts & Metiers, Chim Organ Lab, UMR7084, F-75003 Paris, France

[3] Univ Lyon 1, CNRS, UMR 5180, Analyt Sci Lab, F-69622 Villeurbanne, France

[4] Univ Lyon 1, CNRS, UMR 5246, Lab Catalyse & Synth Organ,Inst Chim & Biochim Mo, F-69622 Villeurbanne, France

来源：

RADIATION PHYSICS AND CHEMISTRY | 2008年 / 77卷 / 05期

关键词：

DCH; 18C6; stability; Pu(IV)/U(IV) separation; gamma-irradiation; uranyl dependence; radiation chemical yield; single crystal structure;

D O I：

10.1016/j.radphyschem.2007.09.010

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The cis-syn-cis isomer of dicyclohexano-18-crown-6 (DCH18C6) has been shown to be an efficient extractant able to perform the separation of Pu(IV) and U(VI) from fission products and then the separation of Pu(IV) from U(VI) without valence exchange as required in the PUREX process. This macrocycle was irradiated in nitric acid with a Cs-137 gamma source to study its radiation chemical stability. Radiation chemical yields (G) were determined by gas chromatography. The results show that the presence of uranyl nitrate has a strong influence on DCH18C6 radiation chemical stability. Indeed, the presence of this template ion increases the macrocycle stability by promoting fragments recombination. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：581 / 584

页数：4

共 18 条

[1] SEPARATION OF STRONTIUM FROM NUCLEAR WASTE SOLUTIONS BY SOLVENT-EXTRACTION WITH CROWN ETHERS [J].

BLASIUS, E ;

KLEIN, W ;

SCHON, U .

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 1985, 89 (02) :389-398

[2] Characterization of an improved extraction chromatographic material for the separation and preconcentration of strontium from acidic media [J].

Dietz, ML ;

Yaeger, J ;

Sajdak, LR ;

Jensen, MP .

SEPARATION SCIENCE AND TECHNOLOGY, 2005, 40 (1-3) :349-366

[3] RADIOLYTIC PRODUCTS STUDY OF DICYCLOHEXANO-18-CROWN-6, A SELECTIVE EXTRACTANT FOR NUCLEAR-FUEL REPROCESSING [J].

DRAYE, M ;

CHOMEL, R ;

DOUTRELUINGNE, P ;

GUY, A ;

FOOS, J ;

LEMAIRE, M .

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY-LETTERS, 1993, 175 (01) :55-62

[4]

Draye M, 1996, B SOC CHIM FR, V133, P183

[5] SYNTHESIS AND UTILIZATION OF NEW EXTRACTANTS FOR NUCLEAR HYDROMETALLURGY [J].

GUYON, V ;

FOOS, J ;

GUY, A ;

MOUTARDE, T ;

CHOMEL, R ;

DRAYE, M ;

LEMAIRE, M .

SEPARATION SCIENCE AND TECHNOLOGY, 1995, 30 (7-9) :1961-1980

[6] EASY SEPARATION OF THE CIS-SYN-CIS AND CIS-ANTI-CIS ISOMERS OF DICYCLOHEXYL-18-CROWN-6 [J].

GUYON, V ;

LANDRE, PD ;

GUY, A ;

FOOS, J ;

LEMAIRE, M .

CHEMISTRY LETTERS, 1992, (05) :723-726

[7] SREX - A NEW PROCESS FOR THE EXTRACTION AND RECOVERY OF STRONTIUM FROM ACIDIC NUCLEAR WASTE STREAMS [J].

HORWITZ, EP ;

DIETZ, ML ;

FISHER, DE .

SOLVENT EXTRACTION AND ION EXCHANGE, 1991, 9 (01) :1-25

[8]

Iljadica MCF, 2005, RADIOCHIM ACTA, V93, P601

[9] Preliminary study of the stability of calix[4]arene crown compounds under radiolysis [J].

Jankowski, CK ;

Allain, F ;

Dozol, JF ;

Virelizier, H ;

Tabet, JC ;

Moulin, C ;

Lamouroux, C .

RAPID COMMUNICATIONS IN MASS SPECTROMETRY, 2003, 17 (12) :1247-1255

[10] ESR study of radiation resistance of some aza- and thiacrown ethers at 77 K [J].

Kucukyavuz, S ;

Nesterov, SV ;

Onal, AM .

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 1998, 230 (1-2) :39-44

← 1 2 →