Process for preparing hydrazine hydrate with oxime recycling
US12180070B2 · kind B2 · utility
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12References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 12, 2020 |
| Grant date | Dec 31, 2024 |
| Priority date | — |
| Expiry date | Feb 10, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to an improved process for preparing hydrazine hydrate from the azine of methyl ethyl ketone obtained from methyl ethyl ketone by oxidizing ammonia with hydrogen peroxide in the presence of an activator, characterized in that it comprises a step of recycling the methyl ethyl ketone oxime purge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.