Disposal of hydrazine propellants
US5498401A · kind A · utility
2Cited by
2References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 11, 1995 |
| Grant date | Mar 12, 1996 |
| Priority date | — |
| Expiry date | Apr 11, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62D2101/45
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method for converting hydrazine and/or substituted hydrazines, particularly unsymmetric dimethyl hydrazine (UDMH), to ammonia or ammonia and the corresponding amines by hydrogenation over a supported Group VIII metal catalyst. Preferably, the hydrazines are dissolved in a suitable solvent and then hydrogenated at a temperature of about 0.degree. to 250.degree. C., followed by separation of the commercially valuable ammonia and amines. Alternatively, a gas phase reaction may be used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.