High recovery spiral wound membrane element
US4855058A · kind A · utility
94Cited by
15References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 2, 1988 |
| Grant date | Aug 8, 1989 |
| Priority date | — |
| Expiry date | May 2, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2313/143
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
This invention is a spiral wound membrane filtration element for reverse osmosis, ultrafiltration, microfiltration and filtration of gas mixtures and having a novel radial feed-concentrate flow path and axial permeate discharge allowing conversion of a feed mixture to be varied to any practical desired degree without regard to the membrane elements length while maitaining turbulent or chopped laminar hydrodynamic flow conditions where desired, and a method of using said membrane elements in a filtration process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.