Temperature dependence of isotope effects in uranium chemical exchange reactions

Journal of Nuclear Science and Technology

Volumn 43, Issue 4, 2006, Pages 400-406

  Fujii, Yasuhiko ^a   Higuchi, Nobuhiko ^a   Haruno, Yoshio ^a   Nomura, Masao ^a   Suzuki, Tastuya ^a  

^a TOKYO INSTITUTE OF TECHNOLOGY   (Japan)

Author keywords

5f electrons; Anion exchange resin; Chromatography; Complex formation; Electron exchange; Isotope effects; Isotope separation; Molecular vibration; Nuclear field shift; Uranium isotopes

Indexed keywords

5F ELECTRONS; ANION EXCHANGE RESIN; COMPLEX FORMATION; ELECTRON EXCHANGE; ISOTOPE EFFECTS; ISOTOPE SEPARATION; MOLECULAR VIBRATION; NUCLEAR FIELD SHIFT; URANIUM ISOTOPES;

CHEMICAL REACTIONS; CHROMATOGRAPHY; ISOTOPES; MOLECULAR VIBRATIONS; NEGATIVE IONS; PHASE EQUILIBRIA; REDOX REACTIONS; SOLUTIONS; URANIUM;

THERMAL EFFECTS;

EID: 33646788735     PISSN: 00223131     EISSN: 00223131     Source Type: Journal    
DOI: 10.3327/jnst.43.400     Document Type: Article

References (18)

1. Y. Fujii, M. Okamoto, H. Kadotani, H. Kakihana, "Equilibrium time and criticality considerations in uranium enrichment by the chemical-exchange processes," Nucl. Technol., 86, 282 (1989).
2. J. Shimokawa, F. Kobayashi, "Separation of uranium isotopes by chemical exchange," Isotopenpraxis, 6, 121 (1970).
3. M. Seko, T. Miyake, K. Inada, K. Takeda, "Uranium isotope enrichment by chemical method," Nucl. Technol., 50, 178 (1980).
4. M. Seko, "Basic uranium-235 enrichment by Asahi Chemical Enrichment Process (ACEP)," Proc. Int. Symp. Chem. Exchange Uranium Enrich. & Isotope Sep., Bull. Res. Lab. Nucl. React. Special Issue, 1, 176 (1992).
5. T. Dujardin, G. Lonchampt, "Review of the French Chemicx Process," Proc. Int. Symp. Chem. Exchange Uranium Enrich. & Isotope Sep., Bull. Res. Lab. Nucl. React. Special Issue, 1, 161 (1992).
6. Y. Fujii, M. Nomura, H. Onitsuka, K. Takeda, "Anomalous isotope fractionation in uranium enrichment process," J. Nucl. Sci. Technol., 26, 1061 (1989).
7. 235U in U(IV)-U(VI) chemical exchange," Z. Natureforsch., 44a, 359 (1989).
8. M. Nomura, N. Higuchi, Y, Fujii, "Mass dependence of uranium isotope effects in U(IV)-U(VI) exchange reaction," J. Am. Chem. Soc., 118, 9127 (1996).
9. J. Bigeleisen, "Nuclear size and shape effects in chemical reactions. Isotope chemistry of the heavy elements," J. Am. Chem. Soc., 118, 3676 (1996).
10. T. M. Florence, G. E. Batley, A. Ekstrom, J. J. Fardy, Y. J. Farrar, "Separation of uranium isotopes by uranium(IV)-uranium(VI) chemical exchange," J. Inorg. Nucl. Chem., 37, 1961 (1975).
11. J. Fukuda, Y. Fujii, M. Okamoto, "A fundamental study on uranium isotope separation using U(IV)-U(VI) electron exchange reaction," Z Naturforsch., 38a, 1072 (1983).
12. F. Spedding, J. Powell, J. Svec, "A laboratory method for separating nitrogen isotopes by ion-exchange," J. Am. Chem. Soc., 77, 6125 (1955).
13. H. Kakihana, T. Kanzaki, "Simplified and generalized method for analyzing Chromatographic isotope separation data," Bull. Tokyo Inst. Technol., 90, 77 (1969).
14. J. M. Lerat, C. Lorrain, "Uranium enrichment by solvent extraction," Solvent Extraction and Ion Exchange in the Nuclear Fuel Cycle, Soc. of Chem. Ind., Eillis Horwood Ltd., p. 53 (1985).
15. H. Y. Kim, M. Kakihana, M. Aida, K. Kogure, M. Nomura, Y. Fujii, K. Okamoto, "Uranium isotope effects in some ion exchange systems involving uranyl-carbonate complexes," J. Chem. Phys., 81, 6266 (1984).
16. I. M. Ismail, M. Nomura, M. Aida, Y. Fujii, "The effect of temperature on uranium isotope effects studied by cation exchange displacement chromatography," Z. Naturforsch., 57a, 247 (2002).
17. 157Gd isotope effects in ligand exchange reactions observed by ion exchange chromatography," Anal. Chem., 72, 2841 (2000).
18. I. M. Ismail, M. Nomura, Y. Fujii, "Isotope effects in Eu(II)/ Eu(III) electron exchange system observed by using cation exchange chromatography," J. Nucl. Sci. Technol., 35, 801 (1998).