Preparation of composite silica membranes with thermal stability by a soaking-rolling method
US6958137B2 · kind B2 · utility
14Cited by
12References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2003 |
| Grant date | Oct 25, 2005 |
| Priority date | — |
| Expiry date | Mar 31, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2323/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to a method for preparing a composite silica membrane with thermal stability by a soaking-rolling method, and more particularly to a method for preparing a composite silica membrane with improved thermal stability by rolling the surface of a porous support with silica xerogel, soaking-rolling the surface with γ-alumina, coating, drying, and sintering the porous support surface, thereby forming a fine coating membrane on the porous support surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.