Vaporization of solutions of hydrazine hydrate
US5393508A · kind A · utility
2Cited by
8References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 10, 1993 |
| Grant date | Feb 28, 1995 |
| Priority date | — |
| Expiry date | Sep 10, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S203/06
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Solutions of hydrazine hydrate are vaporized, without any concomitant decomposition thereof, by heating such solutions, in the liquid phase, under conditions as to effect the decompression or volatilization thereof; this process is particularly applicable for the vaporization of that hydrazine hydrate solution contained in the reboiler of a column wherein the hydrolysis of an azine R.sub.1 R.sub.2 C.dbd.N-N.dbd.CR.sub.1 R.sub.2 is carried out, with recovery of hydrazine hydrate at the base of the column and of a ketone, R.sub.1 R.sub.2 C.dbd.O, at the column head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.