Serial crossflow filtration assembly
US4994190A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 30, 1990 |
| Grant date | Feb 19, 1991 |
| Priority date | — |
| Expiry date | Jan 30, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D61/149
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A crossflow filtration assembly includes a plurality of crossflow filtration modules connected in series, a pump for introducing a solution containing large components and small components, and a pump for circulating the solution between the series-connected modules. Each module has an inlet for receiving the large and small components in solution, a semipermeable membrane for passing only the small particles in solution to be discharged from the assembly, and an outlet for passing the large components in solution to be circulated to the inlet of the next series-connected module. Prior to entering the next series-connected module, the large components in solution are diluted by incoming solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.