Treatment of materials
US4472512A · kind A · utility
4Cited by
8References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 1981 |
| Grant date | Sep 18, 1984 |
| Priority date | — |
| Expiry date | Aug 31, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF26B21/14
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to the treatment of gel materials to remove water therefrom. The invention provides a process for removing water from a gel material by contacting the gel material with a gaseous mixture of an organic compound and a gas. The organic compound, the gas and conditions of contacting are selected such that water is extracted from the gel material and passes into the gaseous mixture. The invention in one embodiment may be used to dry gel materials while maintaining an open porous network therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.