Effect of ionizing radiation on DTPA and NTA solutions containing rare-earth and transplutonium elements and nitric acid.
Saved in:
| Title: | Effect of ionizing radiation on DTPA and NTA solutions containing rare-earth and transplutonium elements and nitric acid. |
|---|---|
| Authors: | Kharitonov, Oleg V.1 (AUTHOR), Firsova, Lubov A.1 (AUTHOR), Kozlitin, Evgeny A.1 (AUTHOR) evgeny_kozlitin@mail.ru |
| Source: | Journal of Radioanalytical & Nuclear Chemistry. Nov2024, Vol. 333 Issue 11, p5663-5668. 6p. |
| Subjects: | Rare earth metals, Transplutonium elements, Absorbed dose, Precipitation (Chemistry), Ionizing radiation |
| Abstract: | Radiolysis of transplutonium elements and rare earths (REE)-containing solutions in radiochemical processes destroys complexing reagents and precipitates target products. We investigated the effect of the radiation-absorbed dose (AD) and acidity on the behavior of simulated DTPA and NTA REE-containing solutions to eliminate precipitation. We measured the AD by bichromate dosimetry. Without nitric acid, the AD = 0.12–0.24 MGy causes abundant precipitation of REEs. In the presence of HNO3 up to 2 mol L−1, no precipitation occurred up to 1.53 MGy. At HNO3 1 mol L−1 and AD = 1.02 MGy, DTPA is entirely decomposed. We have suggested a method to avoid precipitation. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Radioanalytical & Nuclear Chemistry is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
|
Full text is not displayed to guests.
Login for full access.
|
|
| Abstract: | Radiolysis of transplutonium elements and rare earths (REE)-containing solutions in radiochemical processes destroys complexing reagents and precipitates target products. We investigated the effect of the radiation-absorbed dose (AD) and acidity on the behavior of simulated DTPA and NTA REE-containing solutions to eliminate precipitation. We measured the AD by bichromate dosimetry. Without nitric acid, the AD = 0.12–0.24 MGy causes abundant precipitation of REEs. In the presence of HNO3 up to 2 mol L−1, no precipitation occurred up to 1.53 MGy. At HNO3 1 mol L−1 and AD = 1.02 MGy, DTPA is entirely decomposed. We have suggested a method to avoid precipitation. [ABSTRACT FROM AUTHOR] |
|---|---|
| ISSN: | 02365731 |
| DOI: | 10.1007/s10967-024-09675-4 |
