Apparatus for rapidly drying a wet, porous gel monolith
US5343633A · kind A · utility
21Cited by
2References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 1993 |
| Grant date | Sep 6, 1994 |
| Priority date | — |
| Expiry date | Apr 29, 2013 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF26B21/14
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process and apparatus are described for rapidly drying a wet, porous gel monolith of glass or ceramic, at subcritical temperatures without inducing any cracking of the gel. The wet gel is immersed in a liquid solvent in a chamber, and the liquid solvent is then heated and expelled from the chamber. Further heating, with or without the presence of a flowing inert gas, fully dries the wet gel. When an inert gas is used, the gas is delivered to the chamber with a controlled solvent partial vapor pressure, to correspondingly control the driving force for drying the gel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.