Method for enhancing catalytic activity with supercritical fluids
US6610624B2 · kind B2 · utility
4Cited by
18References
8Claims
0Family size
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Key dates
| Filing date | Jun 12, 2001 |
| Grant date | Aug 26, 2003 |
| Priority date | — |
| Expiry date | Dec 26, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/40
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Methods for removing soluble material from confined spaces within substrates such as containers, capsules and porous powders comprising extraction with supercritical fluids, the pressure of which is preferably modulated between an upper level and a lower level within a relatively narrow range of fluid pressure and density. The method permits enhanced extraction efficiency, catalytic reaction rates and ability to maintain catalyst activity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.