Obtaining Diluent for High-Enrichment Uranium Hexafluoride in Two- and Three-Stage Cascades
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The production of diluent for high-enrichment uranium in a cascade from waste uranium hexafluoride with unknown 234U content is examined. To secure high-quality diluent and reduce separative work consumption, it is proposed that the diluent be produced in two stages with sorting and extraction of the best intermediate produced in terms of 234U concentration after the first stage. The worst intermediate products are best used at the second stage to obtain low-enrichment uranium hexafluoride satisfying ASTM C 996-15 specifications. In addition, the obtained new wastes can be used in a third stage to produce diluent with low 234U concentration.
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- 1.V. F. Kornilov, A. P. Knutarev, G. S. Soloviev, et al., Patent No. 2057377 RF, “Method of reprocessing weapons-grade high-enrichment uranium and its alloys into fuel material for nuclear reactors,” subm. March 27, 1996, Byull. Izobret. Polezn. Modeli, No. 9, 876 (1996).Google Scholar
- 2.G. S. Skorynin, S. V. Filimonov, A. N. Shubin, et al., Patent No. 2225362 RF, “Method of producing low-enrichment uranium hexafluoride from weapons-grade high-enrichment uranium,” subm. March 10, 2004, ibid., No. 7, 655 (2004).Google Scholar
- 3.V. I. Vandyshev, V. I. Gertsog, V. A. Palkin, et al., Patent No. 2321544 RF, “Method of producing diluent for reprocessing weapons-grade high-enrichment uranium into low-enrichment uranium,” subm. April 10, 2008, ibid., No. 10, 863–864 (2008).Google Scholar
- 4.V. V. Vodolazskkh, N. P. Glukhov, V. A. Palkin, et al., Patent No. 2377674 RF, “Method of processing contaminated uranium raw material,” subm. Dec. 27, 2009, ibid., No. 36, 1207–1208 (2009).Google Scholar
- 5.V. S. Gordienko, I. E. Iovik, V. A. Palkin, et al., Patent No. 2479489 RF, “Method of obtaining diluent for reprocessing weapons-grade high-enrichment uranium into low-enrichment uranium,” subm. April 20, 2013, ibid., No. 11, 150 (2013).Google Scholar
- 6.V. A. Palkin and V. A. Maslyukov, “Analytical assessment of the content of the minor isotopes of uranium in optimal cascades,” in: 12th Int. Conf. on Physicochemical Processes in the Selection of Atoms and Molecules in Laser, Plasma, and Nanotechnology, TsNIIatominform, Moscow (2008), pp. 31–34.Google Scholar
- 7.K. Cohen, Theory of Isotope Separation as Applied to the Large Scale Production of 235 U, McGraw-Hill, New York (1951).Google Scholar