Process for preparing ammonium dinitramide
US5714714A · kind A · utility
4Cited by
4References
8Claims
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Key dates
| Filing date | Oct 15, 1992 |
| Grant date | Feb 3, 1998 |
| Priority date | — |
| Expiry date | Oct 15, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S149/122
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for preparing ammonium dinitramide by: PA1 (1) nitrating either ethyl carbamate or methyl carbamate to form the corronding mononitrate compound, ethyl N-nitrocarbamate or methyl N-nitrocarbamate; PA1 (2) reacting the N-nitrocarbamate with ammonia under anhydrous conditions to produce the corresponding ammonium salt, ammonium ethyl N-nitrocarbamate or ammonium methyl N-nitrocarbamate; PA1 (3) nitrating the ammonium salt and then treating the reaction mixture with ammonia to produce ammonium dinitramide, ammonium nitrate, and regenerate the original ethyl carbamate or methyl carbamate compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.