Small-angle neutron scattering study of plutonium third phase formation in 30% TBP/HNO3/alkane diluent systems

Solvent Extraction and Ion Exchange

Volumn 24, Issue 3, 2006, Pages 283-298

  Plaue, J ^a   Gelis, A ^b   Czerwinski, K ^c   Thiyagarajan, P ^b   Chiarizia, R ^b  

^a Defense Nuclear Facilities Safety Board   (United States)

^b ARGONNE NATIONAL LABORATORY   (United States)

^c UNIVERSITY OF NEVADA   (United States)

Author keywords

Baxter model; HPT; Plutonium third phase formation; SANS

Indexed keywords

EXTRACTION; MATHEMATICAL MODELS; MICELLES; MOLECULES; NEUTRON SCATTERING; PLUTONIUM; POTENTIAL ENERGY;

BAXTER MODEL; ORGANIC PHASE SPLITTING; PHASE FORMATION; PLUTONIUM THIRD PHASE FORMATION; SCATTERING INTENSITY; SMALL-ANGLE NEUTRON SCATTERING;

PHASE SEPARATION;

EXTRACTION; MATHEMATICAL MODELS; MICELLES; MOLECULES; NEUTRON SCATTERING; PHASE SEPARATION; PLUTONIUM; POTENTIAL ENERGY;

EID: 33646828028     PISSN: 07366299     EISSN: 15322262     Source Type: Journal    
DOI: 10.1080/07366290600646970     Document Type: Article

References (37)

1. Lanham, W. and Runion, T. (1949) Purex Process for Plutonium and Uranium Recovery. Oak Ridge TN: Oak Ridge National Laboratory. USAEC Report ORNL-479
2. 3/hydrogenated polypropylene tetramer Solvent Extr. Ion Exch.,. preceding paper
3. Vasudeva Rao, P. and Kolarik, Z. (1996) A review of third phase formation in extraction of actinides by neutral organophosphorus extractants Solvent Extr. Ion Exch., 14, pp. 955-993.
4. Kolarik, Z.(1979). The formation of a third phase in the extraction of Pu(IV), U(IV), and Th(IV) nitrates with tributyl phosphate in alkane diluents. In In Proceedings of the International Solvent Extraction Conference ISEC 77 [pp. 178-182]. CIMSpecial Volume 21
5. Mason, C. and Thompson, R. and Tolchard, A. (1987) Third phase formation in the extraction of Plutonium(IV) and Uranium(VI) nitrates with tri-n-butyl phosphate (TBP) in odourless kerosene (OK) at different diluent ratios, temperature, and acidities. I Chem. E. Symposium Series, 103, pp. 75-85. In Extr.'87 Recovery High Value Mater
6. Horner, D.(1971) Formation of the third phase and the effect of temperature on the distribution of plutonium and uranium in extractions by tri-n-butyl phosphate. Oak Ridge TN: Oak Ridge National Laboratory. Report ORNL-4724
7. Mills, A. and Logan, W.(1967) Third phase formation between some actinide nitrates and 20% tri-n-butyl phosphate/odourless kerosene. In Solvent Extraction Chemistry. (pp. 322-334). North-Holland Amsterdam
8. Srinivasan, T. and Ahmed, M. and Shakila, A. and Dhamodaran, R. and Vasudeva Rao, P. and Mathews, C. (1986) Third phase formation in the extraction of plutonium by tri-n-butyl phosphate Radiochimica Acta, 40, pp. 151-154.
9. Osseo-Asare, K. (1991) Aggregation, reversed micelles and microemulsions in liquid-liquid extraction: The tri-n-butylphosphate-diluent-water-electrolyte system Adv. Colloid Interface Sci., 37, pp. 123-173.
10. Osseo-Asare, K.(2002). Microemulsions and third phase formation. In In ISEC 2002, Proceedings of the International Solvent Extraction Conference [pp. 118-124].
11. 3/TBP, n-dodecane system Sep. Sci. Technol., 38, pp. 3313-3331.
12. 3/TBP, n-octane system Sep. Sci. Technol., 38, pp. 3333-3351.
13. Erlinger, C. and Gazeau, D. and Zemb, T. and Madic, C. and Lefrançois, L. and Hebrant, M. and Tondre, C. (1998) Effect of nitric acid extraction on phase behavior, microstructure and interactions between primary aggregates in the system dimethyldibutyltetradecylmalonamide (DMDBTDMA)/n-dodecane/water: A phase analysis and small-angle X-ray scattering (SAXS) characterisation study Solvent Extr. Ion Exch., 16, pp. 707-738.
14. Erlinger, C. and Belloni, L. and Zemb, Th. and Madic, C. (1999) Attractive interactions between reverse aggregates and phase separation in concentrated malonamide extractant solutions Langmuir, 15, pp. 2290-2300.
15. Baxter, R. (1968) Percus-yevick equation for hard spheres with surface adhesion J. Chem. Phys., 49, pp. 2770-2774.
16. Nave, S. and Mandin, C. and Martinet, L. and Berthon, L. and Testard, F. and Madic, C. and Zemb, Th. (2004) Supramolecular organization of tri-n-butyl phosphate in organic diluent on approaching third phase transition Phys. Chem. Chem. Phys., 6, pp. 799-808.
17. 3/TBP, n-dodecane system Langmuir, 19, pp. 9592-9599.
18. Chiarizia, R. and Thiyagarajan, P. and Jensen, M. and Borkowski, M. and Littrell, K.(2003). Third phase formation in TBP solvent extraction systems as a result of interaction between reverse micelles. In In Proceedings of Hydrometallurgy 2003 [pp. 917-928].
19. 3, TBP-n-octane system with Baxter's "sticky spheres" model Solvent Extr. Ion Exch., 22, pp. 325-351.
20. Vasudeva Rao, P. and Dhamodaran, R. and Srinivasan, T. and Mathews, C. (1993) The effect of diluent on third phase formation in thorium nitrate-TBP system: Some novel empirical correlations Solvent Extr. Ion Exch., 11, pp. 645-662.
21. Maillard, C. and Adnet, J. (2001) Plutonium(IV) peroxide formation in nitric medium and kinetics of Pu(VI) reduction by hydrogen peroxide Radiochimica Acta, 89, pp. 485-490.
22. Cleveland, J. (1979) The Chemistry of Plutonium. La Grange Park IL: American Nuclear Society.
23. Irving, H. and Edgington, D. (1959) The extraction of some metal chlorides into tri-n-butyl phosphate J. Inorg. Nucl. Chem., 10, pp. 306-318.
24. Hesford, E. and McKay, H. (1960) The extraction of mineral acids by tri-n-butyl phosphate (TBP) J. Inorg. Nucl. Chem., 13, pp. 156-164.
25. Thiyagarajan, P. and Epperson, J. and Crawford, R. and Carpenter, J. and Klippert, T. and Wozniak, D. (1997) The time-of-flight small-angle neutron diffractometer (SAD) at IPNS, Argonne National Laboratory J. Appl. Cryst., 30, pp. 280-293.
26. Thiyagarajan, P. and Urban, V. and Littrell, K. and Wozniak, D. and Belch, H. and Vitt, R. and Toeller, J. and Leach, D. and Haumann, J. and Ostrowski, G. and Donley, L. and Hammonds, J. and Carpenter, J. and Crawford, R.(1998). The performance of the small-angle diffractometer SAND at IPNS. Starved Rock Lodge, UticaIllinoisJune14-191998. In In ICANS XIV, Proc. 14th Meeting on the International Collaboration on Advanced Neutron Sources [pp. 864-878].
27. Guinier, A. and Fournet, G.(1955) Small Angle Scattering of X-Rays. New York NY: John Wiley and Sons.
28. Menon, S. and Kelkar, V. and Manohar, C. (1991) Application of Baxter's model to the theory of cloud points of nonionic surfactant solutions Phys. Rev. A., 43, pp. 1.
29. Staritzky. (1956) Anal. Chem., 28, pp. 2021-2022.
30. Healy, T. and McKay, H. (1956) The extraction of nitrates by tri-n-butyl phosphate. Part 2: The nature of the TBP phase Trans Faraday Soc, 52, pp. 633.
31. 3, TBP/alkane systems Solvent Extr. Ion Exch., 20, pp. 313 - 330.
32. Ruckenstein, E. and Nagarajan, R. (1980) Aggregation of amphiphiles in nonaqueous media J. Phys. Chem., 84, 1349-1358
33. Pedersen, J. (1997) Analysis of small-angle scattering data from colloids and polymer solutions: Modeling and least-squares fitting Adv. Colloid Interface Sci., 70, pp. 171-210.
34. Krevinskaia, M. and Nikol'skii, V. and Pozharskii, B. (1959) Radiokhimiya, 1(5), pp. 554-561.
35. Vdovenko, V. and Lipovskii, A. and Kuzina, M. (1960) Spectrophotometric investigation of the formation of plutonyl nitrate complexes in aqueous solutions and extraction of Pu(VI) by dibutyl ether Radiokhimiya, 2(3), pp. 307-311.
36. Kertes, A.(1965) The chemistry of the formation and elimination of a third phase in organophosphorus and amine extraction systems. In Solvent Extraction Chemistry of Metals. (pp. 377-400). London: MacMillan.
37. 2O-tri-n-butyl phosphate-diluent system Russian J. Inorg. Chem., 10, pp. 1396-1397.