Membranes and methods useful for caustic applications
US7575687B2 · kind B2 · utility
6Cited by
25References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 28, 2006 |
| Grant date | Aug 18, 2009 |
| Priority date | — |
| Expiry date | Jun 1, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23F1/46
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention provides methods for purifying caustic feed streams using membranes that comprise polysulfonamide matrices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.