Kinetics and mechanism of stripping of Pu(IV) by N,N-dimethylhydroxylamine using a Lewis cell |
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| Authors: | Chen Zuo Taihong Yan Weifang Zheng Chuanbo Li Xiaorong Wang |
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| Affiliation: | (1) Department of Radiochemistry, China Institute of Atomic Energy, 102413 Beijing, People’s Republic of China |
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| Abstract: | The kinetics of back-extraction of Pu(IV) from 30% Tri-Butyl-Phosphate/Odourless Kerosene (TBP/OK) into a nitric acid solution containing N,N-dimethylhydroxylamine (DMHAN) have been investigated using a Lewis cell. The different parameters affecting the back-extraction rate of Pu(IV) such as plutonium, nitric acid, DMHAN concentration in addition to temperature, stirring speed were separately studied and a rate equation was deduced. The activation energy of this process is 28.4 kJ/mol. |
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