Method for producing inorganic porous material
US7045106B2 · kind B2 · utility
14Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2002 |
| Grant date | May 16, 2006 |
| Priority date | — |
| Expiry date | Aug 21, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B33/16
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for producing an inorganic porous material, comprising the steps of preparing an aqueous medium solution containing water-glass as a silica source, a water-soluble polymer and an acid, causing phase separation and gelation in the solution at the same time to form a wet gel, and washing and drying the gel.According to the present invention, use of water-glass which is easily acquired as a silica source makes it possible to produce porous silica having mutually continuous through holes with macro-pores. According to the present invention, the diameter of each macro-pore can be controlled to a desired value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.