Evaluation study on properties of a macroporous silica-based CMPO extraction resin to be used forminor actinides separation from high level liquid waste

作     者：LIU Ruiqin WEI Yuezhou Daisuke Tozawa XU Yuanlai Shigekazu Usuda Hiromichi Yamazaki Keizo Ishii Yuichi Sano Yoshikazu Koma 

作者机构：School of Nuclear Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240China Cyclotron and Radioisotope CenterTohoku UniversityAoba 6-3Aramaki-Aoba-kuSendaiMiyagi980-8578Japan Japan Atomic Energy Agency (JAEA)TokaiIbaraki319-1195Japan 

出 版 物：《Nuclear Science and Techniques》 (核技术（英文）)

年 卷 期：2011年第22卷第1期

页      面：18-24页

核心收录：

学科分类：080706[工学-化工过程机械] 082704[工学-辐射防护及环境保护] 08[工学] 0807[工学-动力工程及工程热物理] 0827[工学-核科学与技术] 

主　　题：萃取树脂 高放废液 锕系元素 分离性能 大孔硅 提取 基础 选择性吸附 

摘      要：Basic properties of a silica-based octyl(phenyl)-N,N-diisobutylcarbamoyl-methylphosphine oxide (CMPO) extraction resin (CMPO/SiO2-P) was *** behavior for some rare earth elements (RE) which are constituents of high level liquid waste (HLLW) and the long-term stability of the extraction resin in nitric acid solution were *** CMPO extraction resin was significantly stable in 3 mol·L?1 HNO3 solution at ***,the RE(III) were efficiently separated from non-adsorptive fission product (FP) elements such as Sr(II) in a column experiment using a highly nitric acid *** separation behaviors of the elements are considered to result from the difference in their adsorption and elution selectivity based on the complex formation with *** was no strong dependency of RE(III) separation efficiency on feed solution flow *** from the perspectives of the acid-resistant behavior of CMPO extraction resin and the elution kinetics for the metal ions with the extraction resin,the CMPO extraction resin can be used in the modified MAREC process for HLLW partitioning.