Poly (1-trimethysilyl-1-propyne) membrane regeneration process
US6423119B1 · kind B1 · utility
2Cited by
6References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2000 |
| Grant date | Jul 23, 2002 |
| Priority date | — |
| Expiry date | Jul 7, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2321/168
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A novel process for the regeneration of PTMSP membranes is disclosed. The regeneration process includes washing a fouled PTMSP membrane with a solution containing at least about 50% butanol in water for a time sufficient to increase the flux and/or selectivity of the membrane. This regeneration process with a butanol containing solution significantly improves both the flux and selectivity of the PTMSP membrane and can regenerate the flux of the PTMSP membrane to the level of a previously unused membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.