Removal of tetranitromethane from TNT plant waste gases
US4003977A · kind A · utility
3Cited by
2References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 18, 1975 |
| Grant date | Jan 18, 1977 |
| Priority date | — |
| Expiry date | Aug 18, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D53/54
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of removing tetranitromethane from waste gases (e.g., from trinitrotoluene plants) by scrubbing the waste gases with a mixture of 1 an alkali metal hydroxide, 2 water, and 3 a liquid alcohol. Most of the tetranitromethane is converted into a soluble alkali metal salt of trinitromethane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.