发明名称 |
METHOD FOR RECOVERING FUEL IN THE FORM OF URANIUM ISOTOPE HEXAFLUORIDE MIXTURE BURNT UP IN NUCLEAR REACTOR FOR ITS REUSE IN NUCLEAR REACTOR |
摘要 |
FIELD: recycling technology for power-generating nuclear materials. ^ SUBSTANCE: concentration of uranium-235 fissionable isotope is raised above source content to desired value of 2-5 mass percent by direct enrichment in cascade of gas centrifuges. Uranium-235 concentration in cascade dump is 0.1-0.3 mass percent. At the same time uranium isotope mixture having lower concentration of uranium-232 and uranium-236 isotopes than burnt-up source mixture is thinned with hexafluoride. To this end uranium-thinner hexafluoride is introduced to interstage stream of cascade at same or almost same concentration of uranium-235 fissionable isotope. For thinning use is made of hexafluoride of natural mixture of uranium isotope, hexafluoride of uranium isotope mixture separated from burnt-up nuclear fuel, as well as mixture of source uranium isotope burnt-up mixture and hexafluoride of natural mixture of uranium isotopes or hexafluoride of uranium isotope mixture separated from burnt-up nuclear fuel. ^ EFFECT: ability of producing marketable uranium hexafluoride at minimal quantity of uranium-separating factory facilities used for thinner production. ^ 16 cl, 3 dwg, 3 tbl |
申请公布号 |
RU2307410(C2) |
申请公布日期 |
2007.09.27 |
申请号 |
RU20050124421 |
申请日期 |
2005.08.01 |
申请人 |
FEDERAL'NOE GOSUDARSTVENNOE UNITARNOE PREDPRIJATIE "SIBIRSKIJ KHIMICHESKIJ KOMBINAT" |
发明人 |
VODOLAZSKIKH VIKTOR VASIL'EVICH;GAVRILOV PETR MIKHAJLOVICH;ZHURIN VLADIMIR ANATOL'EVICH;KOZLOV VLADIMIR ANDREEVICH;KOROTKEVICH VLADIMIR MIKHAJLOVICH;KRUTYKH VIKTOR NIKOLAEVICH;MAZIN VLADIMIR IL'ICH;STERKHOV MAKSIM IVANOVICH;SHCHELKANOV VLADIMIR IVANOVICH |
分类号 |
G21C19/42;B01D59/20 |
主分类号 |
G21C19/42 |
代理机构 |
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