CAJ | 학술논문

在无水乙醇溶液中制得了白色针状草酸甲基肼晶体。经过分析，其分子式为（CH3N2H4）2C2O4，100g水中的溶解度为241g（25℃）。研究了草酸甲基肼洗涤含少量铀的TBP的性能，考察了一些因素对单级洗涤实验的影响。在未经辐照情况下，草酸甲基肼对含铀TBP的洗涤效果略差于碳酸钠，对含钚TBP的洗涤效果略好于碳酸钠；在一定辐照剂量下，对钚的洗涤效果明显优于碳酸钠。草酸甲基肼洗涤CMP体系中钚的效果略好于碳酸钠；洗涤镅的效果优于碳酸钠。草酸甲基肼四级逆流串级洗涤含铀TBP可获得良好的洗涤效果，洗涤后的有机相铀浓度约为1mg/L。
재무수을순용액중제득료백색침상초산갑기정정체。경과분석，기분자식위（CH3N2H4）2C2O4，100g수중적용해도위241g（25℃）。연구료초산갑기정세조함소량유적TBP적성능，고찰료일사인소대단급세조실험적영향。재미경복조정황하，초산갑기정대함유TBP적세조효과략차우탄산납，대함비TBP적세조효과략호우탄산납；재일정복조제량하，대비적세조효과명현우우탄산납。초산갑기정세조CMP체계중비적효과략호우탄산납；세조미적효과우우탄산납。초산갑기정사급역류천급세조함유TBP가획득량호적세조효과，세조후적유궤상유농도약위1mg/L。
The preparation and stability of methylhydrazine oxalate (MHOX)are investigated. White needles of MHOX are obtained, and it's molecular formula is (CH3N2H4)2C2O4. The aqueous solution of MHOX is stable at ambient temperature. The washing efficiency of 30 %TBP/OK containing micro-quantity of uranium is studied with MHOX. The effects of concentration of washing solution, phase ratio(A/O) and irradiation dose on the washing efficiency are investigated. The washing efficiency of uranium from 30 % TBP/OK with MHOX is as same as that with Na2CO3. The washing efficiencies of Pu and Am with MHOX are slightly higher than those with Na2CO3. The washing efficiency of Pu from CMP/TBP/OK with MHOX is slightly higher than that with Na2CO3 ,but it is obviously higher for Am. The washing efficiency in a four-stage countercurrent cascade experiment is satisfied with MHOX.