Cross-flow filter membrane and method of manufacturing it
US6780466B2 · kind B2 · utility
61Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2002 |
| Grant date | Aug 24, 2004 |
| Priority date | — |
| Expiry date | Nov 18, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2315/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention provides a membrane for cross-flow filtering of a fluid to be treated, said membrane comprising an inorganic rigid porous support defining at least one flow channel for the fluid to be treated flowing in a given direction, the surface of the channel being covered in at least one separator layer separating out from the fluid to be treated a fraction referred to as the permeate which passes through the layer and the support. According to the invention, the separator layer presents a thickness gradient that decreases in the flow direction of the fluid to be treated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.