Fluid-membrane separation
US6649062B1 · kind B1 · utility
8Cited by
2References
30Claims
0Family size
Inventor
Key dates
| Filing date | Mar 25, 1997 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | Mar 24, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D61/246
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for the separation of mixture components uses a supercritical fluid that is fresh to at least one side of a nonporous membrane after which the fluid is either recycled to the opposite side of the membrane or removed from the separation process. Fluids and membranes, including modified membranes, are provided to facilitate passage of one or more components of a mixture through the membrane while retarding passage of other components of the mixture. The process is useful for the separation of mixtures with similar components including axeotropic mixtures and pharmaceutical and biological products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.