Hybrid membrane separation systems
US4944882A · kind A · utility
47Cited by
1References
38Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1989 |
| Grant date | Jul 31, 1990 |
| Priority date | — |
| Expiry date | Apr 21, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D61/027
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Hybrid membrane-based separation systems are disclosed that are useful in separating solvents and solutes. The hybrid systems combine any of the solvent removal processes reverse osmosis, nanofiltration, membrane distillation and pervaporation with any one of more of the solute removal processes utilizing pervaporation membranes, supported-liquid membranes, coupled transport membranes, and membrane contactors, the solvent and solute removal processes forming part of a recycle stream that utilizes membrane separation retentates as feeds and as recycle feed stream make-up.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.