Hydrometallurgical removal of uranium and thorium from Ethiopian tantalite ore
This study focused on the leaching of uranium and thorium from a high grade Ethiopian tantalite ore using sulfuric acid. The effects of variables such as acid concentration, temperature and leaching time were studied. In general, the leaching efficiency of uranium increases with increasing temper...
| Main Authors: | , , , , |
|---|---|
| Format: | Journal Article |
| Published: |
Wroclaw University of Science and Technology
2018
|
| Online Access: | http://hdl.handle.net/20.500.11937/73110 |
| _version_ | 1848762926267105280 |
|---|---|
| author | Cheru, M. del Rosario, A. Yimam, A. Tadesse, Bogale Berhe, G. |
| author_facet | Cheru, M. del Rosario, A. Yimam, A. Tadesse, Bogale Berhe, G. |
| author_sort | Cheru, M. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | This study focused on the leaching of uranium and thorium from a high grade Ethiopian
tantalite ore using sulfuric acid. The effects of variables such as acid concentration, temperature and
leaching time were studied. In general, the leaching efficiency of uranium increases with increasing
temperature from 100 to 300 °C whereas the opposite trend was observed for thorium. The amount of
uranium leached increased from 69.1% at contact time of 1 hr to 88.6% when the tantalite ore was
leached for 3 hrs. On the other hand, for the experiments conditions considered in this study, the
leaching behavior of uranium and thorium did not change significantly with varying sulphuric acid
concentration from 70 to 90 wt%. Overall, the highest dissolution of uranium and thorium were
achieved at 100 °C, 70 wt% H2SO4 concentration and 1 hr contact time. |
| first_indexed | 2025-11-14T10:55:19Z |
| format | Journal Article |
| id | curtin-20.500.11937-73110 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:55:19Z |
| publishDate | 2018 |
| publisher | Wroclaw University of Science and Technology |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-731102019-03-05T05:32:35Z Hydrometallurgical removal of uranium and thorium from Ethiopian tantalite ore Cheru, M. del Rosario, A. Yimam, A. Tadesse, Bogale Berhe, G. This study focused on the leaching of uranium and thorium from a high grade Ethiopian tantalite ore using sulfuric acid. The effects of variables such as acid concentration, temperature and leaching time were studied. In general, the leaching efficiency of uranium increases with increasing temperature from 100 to 300 °C whereas the opposite trend was observed for thorium. The amount of uranium leached increased from 69.1% at contact time of 1 hr to 88.6% when the tantalite ore was leached for 3 hrs. On the other hand, for the experiments conditions considered in this study, the leaching behavior of uranium and thorium did not change significantly with varying sulphuric acid concentration from 70 to 90 wt%. Overall, the highest dissolution of uranium and thorium were achieved at 100 °C, 70 wt% H2SO4 concentration and 1 hr contact time. 2018 Journal Article http://hdl.handle.net/20.500.11937/73110 10.5277/ppmp18153 Wroclaw University of Science and Technology fulltext |
| spellingShingle | Cheru, M. del Rosario, A. Yimam, A. Tadesse, Bogale Berhe, G. Hydrometallurgical removal of uranium and thorium from Ethiopian tantalite ore |
| title | Hydrometallurgical removal of uranium and thorium from Ethiopian tantalite ore |
| title_full | Hydrometallurgical removal of uranium and thorium from Ethiopian tantalite ore |
| title_fullStr | Hydrometallurgical removal of uranium and thorium from Ethiopian tantalite ore |
| title_full_unstemmed | Hydrometallurgical removal of uranium and thorium from Ethiopian tantalite ore |
| title_short | Hydrometallurgical removal of uranium and thorium from Ethiopian tantalite ore |
| title_sort | hydrometallurgical removal of uranium and thorium from ethiopian tantalite ore |
| url | http://hdl.handle.net/20.500.11937/73110 |