Preparation from hydroxylammonium sulfate of oximes and hydroxamic acids via alcoholic hydroxylamine solution
US4507248A · kind A · utility
17Cited by
7References
20Claims
0Family size
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Key dates
| Filing date | Sep 23, 1983 |
| Grant date | Mar 26, 1985 |
| Priority date | — |
| Expiry date | Sep 23, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B21/1454
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Solid hydroxylammonium sulfate is reacted with an alcohol solution of an alkali metal hydroxide or alkoxide to produce an alcoholic hydroxylamine liquid phase and a sulfate-containing solid phase. The liquid phase is used for further reactions such as oximations and hydroxamic acid production. The different bases behave differently with regard to suitable and preferable solvents and temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.