Supported microporous ceramic membranes
US5269926A · kind A · utility
31Cited by
4References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 9, 1991 |
| Grant date | Dec 14, 1993 |
| Priority date | — |
| Expiry date | Sep 9, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2111/00801
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for permformation of microporous ceramic membranes onto a porous support includes placing a colloidal suspension of metal or metal oxide particles on one side of the porous support and exposing the other side of the porous support to a drying stream of gas or a reactive gas stream so that the particles are deposited on the drying side of the support as a gel. The gel so deposited can be sintered to form a supported ceramic membrane useful for ultrafiltration, reverse osmosis, or molecular sieving having mean pore sizes less than 100 Angstroms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.