Method and a device for extracting a liquid phase from a suspension
US8940176B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 2009 |
| Grant date | Jan 27, 2015 |
| Priority date | — |
| Expiry date | Aug 10, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01L3/502753
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of extracting a liquid phase from a suspension, the method comprising: injecting said suspension into a duct presenting a first section that is straight and a second section that is curved; and at the outlet from said curved section of the duct, extracting a liquid-enriched fraction of said suspension that is spatially separated from a particle-enriched fraction of the suspension; the method being characterized in that the injection flow rate of the suspension and the geometry of the duct are selected in such a manner that: in the straight section, lift forces cause particles to be superconcentrated in a ring around the longitudinal axis of the duct; and in the curved section, Dean secondary flows deform said ring and give rise to spatial separation between said liquid-enriched fraction and said particle-enriched fraction. A device for implementing such a method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.