CAJ | 학술논문

由于快堆M OX乏燃料放射性强，需要缩短停留时间以降低溶剂辐解，本工作以离心萃取器为萃取设备，在短停留时间下进行了快堆M OX乏燃料后处理铀钚萃取洗涤‐共反萃工艺研究。研究结果显示，该工艺在单级停留时间约20 s 时具有良好的铀钚收率，萃取洗涤过程中铀和钚收率均大于99.99％，共反萃过程中铀和钚收率分别为99.99％和99.94％；同时能有效防止第三相的形成，避免钚的聚合沉淀。
유우쾌퇴M OX핍연료방사성강，수요축단정류시간이강저용제복해，본공작이리심췌취기위췌취설비，재단정류시간하진행료쾌퇴M OX핍연료후처리유비췌취세조‐공반췌공예연구。연구결과현시，해공예재단급정류시간약20 s 시구유량호적유비수솔，췌취세조과정중유화비수솔균대우99.99％，공반췌과정중유화비수솔분별위99.99％화99.94％；동시능유효방지제삼상적형성，피면비적취합침정。
The high specific activity of fast reactor MOX spent fuel will leads to serious solvent degradation ,so the contact time needs to be shorten .A rig trial of U and Pu co‐recovery process was performed in centrifugal contactor .The results show that when contact time in single stage is 20 s ,the yields of U and Pu in extraction‐scrub process are higher than 99.99% , respectively , and the yields of U and Pu in co‐stripping process are 99.99% and 99.94% ,respectively .The risk of the third phase generation and polymerization and precipitation of Pu can be prevented .