Membrane
US5935440A · kind A · utility
16Cited by
3References
29Claims
0Family size
Inventors
Key dates
| Filing date | Mar 14, 1997 |
| Grant date | Aug 10, 1999 |
| Priority date | — |
| Expiry date | Mar 14, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2323/30
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for treatment of zeolite membranes to improve performance which comprises contacting the membrane with a silicic acid or a mixture of silicic acids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.