Ion-exchange membranes reinforced with non-woven carbon fibers
US4505797A · kind A · utility
69Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 24, 1983 |
| Grant date | Mar 19, 1985 |
| Priority date | — |
| Expiry date | Mar 24, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2323/30
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
This invention is directed to electrodialysis, electrochemical membrane cells and particularly to components comprising the ion-exchange membranes. These membranes are fabricated containing a reinforcing structure comprised of non-woven carbon fibers derived for example from carbonized polyacrylonitrile. The membranes so produced have a low D.C. electrical resistance (increased conductivity) which enables electrodialysis to be performed more economically.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.