Reprocessing of Spent Nuclear Fuel in Liquid and Supercritical Carbon Dioxide

摘要

The conducted investigations have shown that the nuclear power plant spent nuclear fuel (NPP SNF) reprocessing may be carried in liquefied CO{sub}2 and in freon 134a. 2. It is shown that by using the HNO{sub}3-TBP solutions in supercritical carbon dioxide more than 90% of uranium are recovered from the real RBMK (channel-type high power reactor) and WWER-1000 (water-moderated reactor) SNF as a result of three extraction operations under stoichiometric conditions.