Process for separation of the constituents of a mixture in the gas phase using a composite membrane
US4925459A · kind A · utility
70Cited by
12References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 10, 1989 |
| Grant date | May 15, 1990 |
| Priority date | — |
| Expiry date | Jan 10, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C7/144
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A mixture of at least two constituents A and B is submitted to selective separation across a selective membrane. The membrane comprises an active layer comprising particles of a selective solid (5) dispersed in a continuous non-porous and non-elastomeric polymer phase (4) and a porous support (6). The thickness of the active layer is less than 100 micrometers, advantageously less than 20 micrometers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.