High flux fluid separation membranes comprising a cellulose or cellulose derivative layer
US9010547B2 · kind B2 · utility
7Cited by
10References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 23, 2008 |
| Grant date | Apr 21, 2015 |
| Priority date | — |
| Expiry date | May 9, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2325/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention provides membranes having a coating layer comprising cellulose or cellulose derivative and a porous support comprising nanofibers prepared by a process of coating a solution comprising cellulose or a cellulose derivative dissolved in an ionic liquid on to a porous support layer. The present invention is useful for providing improved water flux and high rejection rates for oil/water emulsions. The present invention also provides fluid separation systems in UF, NF, RO and FO, incorporating membranes of the present invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.