Separation of thorium and uranium in nitric acid solution using silica based anion exchange resin.
To separate thorium and uranium in nitric acid solution using anion exchange process, a strong base silica-based anion exchange resin (SiPyR-N4) was synthesized. Batch experiments were conducted and the separation factor of thorium and uranium in 9M nitric acid was about 10. Ion exchange chromatography was applied to separate thorium and uranium in different ratios. Uranium could be eluted by 9M nitric acid and thorium was eluted by 0.1M nitric acid. It was proved that thorium and uranium can be separated and recovered successfully by this method.
School of Nuclear Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.
Yanliang
Y
Chen
School of Nuclear Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China. Electronic address: yzwei@sjtu.edu.cn.
Yuezhou
Y
Wei
Division of Chemistry and Ionizing Radiation Measurement Technology, Shanghai Institute of Measurement and Testing Technology, Shanghai, 201203, China.
Linfeng
L
He
Division of Chemistry and Ionizing Radiation Measurement Technology, Shanghai Institute of Measurement and Testing Technology, Shanghai, 201203, China.
Fangdong
F
Tang
D000837:Anion Exchange Resins / Q000737:chemistry*; D002852:Chromatography, Ion Exchange / Q000295:instrumentation / Q000379:methods*; D017942:Nitric Acid / Q000737:chemistry; D012822:Silicon Dioxide / Q000737:chemistry*; D013910:Thorium / Q000737:chemistry / Q000302:isolation & purification*; D014501:Uranium / Q000737:chemistry / Q000302:isolation & purification*
D000837:Anion Exchange Resins; D017942:Nitric Acid; D014501:Uranium; D013910:Thorium; D012822:Silicon Dioxide
Anion exchange chromatography; Separation of thorium and uranium; Silica based resin