|
|||||
|
|
Leaching characteristics and kinetics of radioactive element uranium and thorium from Ta/Nb tailing |
|
| Authors: | Liu Zhirong Xiu Taoyuan Du Ying Wang Yun |
| Affiliation: | 1.State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, 330013, China ;2.School of Chemistry, Biological and Materials Science, East China University of Technology, Nanchang, 330013, China ;3.School of Nuclear Science and Engineering, East China University of Technology, Nanchang, 330013, China ; |
| Abstract: | The tantalum (Ta)/niobium (Nb) tailing is the tailing after smelting Ta/Nb ore. The tailing contains a certain amount of radioactive element uranium (U) and thorium (Th). U and Th from Ta/Nb tailing were leached by nitric acid and sulfuric acid. Leaching effect and kinetics were investigated under the conditions of different acid concentration, temperature, liquid–solid ratio and time. The results showed that the leaching effects of sulfuric acid on U and Th were much better than that of nitric acid. Kinetic analysis shows that the leaching of U and Th by nitric acid and sulfuric acid are surface chemical reaction. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |