Influence of bubble approach velocity on liquid film drainage between a bubble and a spherical particle
The flotation process strongly depends on drainage of liquid film between a bubble and a particle which might be influenced by hydrodynamic conditions in a flotation cell. This technical note investigates the influence of bubble approach velocity on the liquid drainage process between a bubble and a...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Published: |
Elsevier
2018
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| Online Access: | http://hdl.handle.net/20.500.11937/69612 |
| _version_ | 1848762086933397504 |
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| author | Albijanic, Boris Zhou, Y. Tadesse, Bogale Dyer, Laurence Xu, G. Yang, X. |
| author_facet | Albijanic, Boris Zhou, Y. Tadesse, Bogale Dyer, Laurence Xu, G. Yang, X. |
| author_sort | Albijanic, Boris |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The flotation process strongly depends on drainage of liquid film between a bubble and a particle which might be influenced by hydrodynamic conditions in a flotation cell. This technical note investigates the influence of bubble approach velocity on the liquid drainage process between a bubble and a particle under constant conditions. It was found that the increase in bubble approach velocity results in a higher critical thickness of the wetting liquid film. The results also showed that the rupture of the films was affected more strongly by electrostatic double layer forces than hydrophobic forces. Hydrophobic forces were more pronounced at high bubble approach velocities. This work shows that hydrodynamic conditions should not be neglected when investigating liquid film drainage process. |
| first_indexed | 2025-11-14T10:41:59Z |
| format | Journal Article |
| id | curtin-20.500.11937-69612 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:41:59Z |
| publishDate | 2018 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-696122019-01-08T02:48:11Z Influence of bubble approach velocity on liquid film drainage between a bubble and a spherical particle Albijanic, Boris Zhou, Y. Tadesse, Bogale Dyer, Laurence Xu, G. Yang, X. The flotation process strongly depends on drainage of liquid film between a bubble and a particle which might be influenced by hydrodynamic conditions in a flotation cell. This technical note investigates the influence of bubble approach velocity on the liquid drainage process between a bubble and a particle under constant conditions. It was found that the increase in bubble approach velocity results in a higher critical thickness of the wetting liquid film. The results also showed that the rupture of the films was affected more strongly by electrostatic double layer forces than hydrophobic forces. Hydrophobic forces were more pronounced at high bubble approach velocities. This work shows that hydrodynamic conditions should not be neglected when investigating liquid film drainage process. 2018 Journal Article http://hdl.handle.net/20.500.11937/69612 10.1016/j.powtec.2018.07.010 Elsevier restricted |
| spellingShingle | Albijanic, Boris Zhou, Y. Tadesse, Bogale Dyer, Laurence Xu, G. Yang, X. Influence of bubble approach velocity on liquid film drainage between a bubble and a spherical particle |
| title | Influence of bubble approach velocity on liquid film drainage between a bubble and a spherical particle |
| title_full | Influence of bubble approach velocity on liquid film drainage between a bubble and a spherical particle |
| title_fullStr | Influence of bubble approach velocity on liquid film drainage between a bubble and a spherical particle |
| title_full_unstemmed | Influence of bubble approach velocity on liquid film drainage between a bubble and a spherical particle |
| title_short | Influence of bubble approach velocity on liquid film drainage between a bubble and a spherical particle |
| title_sort | influence of bubble approach velocity on liquid film drainage between a bubble and a spherical particle |
| url | http://hdl.handle.net/20.500.11937/69612 |