Alkaline extraction of polonium from liquid lead bismuth eutectic
Source abstract
Abstract
The production of highly radiotoxic polonium isotopes poses serious safety concerns for the development of future nuclear systems cooled by lead bismuth eutectic (LBE). In this paper it is shown that polonium can be extracted efficiently from LBE using a mixture of alkaline metal hydroxides (NaOH + KOH) in a temperature range between 180 and 350 °C. The extraction ratio was analyzed for different temperatures, gas blankets and phase ratios. A strong dependence of the extraction performance on the redox properties of the cover gas was found. While hydrogen facilitates the removal of polonium, oxygen has a negative influence on the extraction. These findings open new possibilities to back up the safety of future LBE based nuclear facilities.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Nuclear reactor physics and engineering · Nuclear materials and radiation effects · Nuclear Materials and Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (23)
Show source-provided references
1. B.F. Gromov et al., International Conference on Future Nuclear Systems, Yokohama, Japan, 1997, pp. 1285–1290.
2. Handbook on Lead bismuth Eutectic Alloy and Lead Properties, Materials Compatibility, Thermal-hydraulics and Technologies, OECD Nuclear Energy Agency, Issy-les-Moulineaux, 2007.
3. Cetnar · Nukleonika · 2010 · 55 · 119
4. Titarenko · Nucl. Instrum. Method Phys. Res. Sect. A – Accele. Spectrom. Detect. Assoc. Equip. · 2006 · 562 · 80110.1016/j.nima.2006.02.059 ↗
5. Domingo-Pardo · Phys. Rev. C · 2006 · 74 · 02580710.1103/PhysRevC.74.025807 ↗
6. H. Harris, US Patent No. 189013, 1922.
7. Emicke · Erzmetall · 1971 · 24 · 205
8. J.A. DeKeyser, W.E. Jespers, The Harris Refinery of S.A. Metallurgie Hoboken-Overpelt N.V., TMS Paper Selection, The Metallurgical Society of AIME, 1981.
9. Dimartini · J. Metals · 1979 · 31 · 23
10. Y.E. Lebedeff, N.J. Edison, W.C. Klein, US Patent No. 3607232, 1971.
11. A.M. Strachan, J.A. Litten, EPD Congress, San Diego, California, 1992, pp. 1091–1099.
12. R.A. Barney, North American Aviation Inc. Report NAA-SR-MEMO-746, 1953.
13. Schulz · Ind. Eng. Chem. Process Design Dev. · 1969 · 8 · 50810.1021/i260032a013 ↗
14. Wheelwright · Sep. Sci. Technol. · 1980 · 15 · 98710.1080/01496398008076282 ↗
15. Yefimov · Mater. Res. Soc. Symp. Proc. · 1998 · 506 · 67910.1557/PROC-506-679 ↗
16. Auman · J. Nucl. Sci. Technol. · 2005 · 42 · 61810.1080/18811248.2004.9726429 ↗
17. Loewen · Prog. Nucl. Energy · 2005 · 47 · 58610.1016/j.pnucene.2005.05.061 ↗
18. Buongiorno · Nucl. Technol. · 2004 · 147 · 40710.13182/NT04-A3539 ↗
19. Witteman · J. Phys. Chem. · 1960 · 64 · 43410.1021/j100833a014 ↗
20. Davey · J. Metals · 1979 · 31 · 28
21. Kirgintsev · Radiokhimiya · 1972 · 14 · 296
22. Behl · Erzmetall · 1968 · 21 · 411
23. Fazio · Nucl. Eng. Des. · 2008 · 238 · 147110.1016/j.nucengdes.2007.11.006 ↗