Method of creating silica ceramic membranes
US5194200A · kind A · utility
17Cited by
1References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 8, 1991 |
| Grant date | Mar 16, 1993 |
| Priority date | — |
| Expiry date | Oct 8, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249956
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of creating a silica ceramic membrane is disclosed. The method begins with the hydrolyzing of a silicon alkoxide with ammonia until the sol is formed. The sol is dialyzed to approximately pH 8 and then acidified to approximately pH 3. The sol is then formed into a membrane by controlled evaporation followed by sintering.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.