Material and process for the filtration of nitric acid and NO2 from streams of air
US7678182B2 · kind B2 · utility
3Cited by
15References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2007 |
| Grant date | Mar 16, 2010 |
| Priority date | — |
| Expiry date | Apr 17, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A50/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A material for filtering NO2 and nitric acid vapors from air over a wide range of humidities and temperatures including a porous hydrophobic substrate and an amine is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.