Nanobubbles for enhanced interaction between solids and gas volumes
US10155229B2 · kind B2 · utility
2Cited by
9References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2015 |
| Grant date | Dec 18, 2018 |
| Priority date | — |
| Expiry date | Mar 21, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03D1/1431
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Nanobubbles are employed to bridge microbubbles and non-buoyant particles, thereby creating sufficient capillary forces between the particles and microbubbles such that relatively large, heavy particles can be separated from an aqueous slurry. Nanobubbles are formed on hydrophobic particle surfaces. The microbubbles, which function as collecting air bubbles, form attachments with the particles. The nanobubbles create additional capillary attachment forces between the particles and microbubbles, allowing the microbubbles to rise with the attached particles to the top of the slurry for separation and recovery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.