Disposal of hydrazine propellants
US5437853A · kind A · utility
3Cited by
3References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1993 |
| Grant date | Aug 1, 1995 |
| Priority date | — |
| Expiry date | Oct 21, 2013 |
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.