Concentration of solids in a suspension using hollow fibre membranes
US5643455A · kind A · utility
128Cited by
11References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1995 |
| Grant date | Jul 1, 1997 |
| Priority date | — |
| Expiry date | Feb 22, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2321/2066
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of concentrating solids in a liquid suspension using a microporous filter assembly having a plurality of hollow microporous, elastic membranes within a vessel, the method including the steps of applying the suspension to an outer surface of the hollow fibers whereby a portion of the suspension passes through the fibers walls and at least a portion of the solids is retained on or in the hollow fibers or within the vessel as suspended solids; dislodging the retained solids from the fibers by applying a gas under pressure after opening the vessel to atmospheric pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.