Preparation from hydroxylammonium sulfate of other hydroxylammonium salts via alcoholic hydroxylamine
US4551324A · kind A · utility
4Cited by
7References
30Claims
0Family size
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Key dates
| Filing date | Sep 23, 1983 |
| Grant date | Nov 5, 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 further reacted with an acid other than sulfuric acid to form another hydroxylammonium salt. The different bases behave differently with regard to suitable and preferably solvents and temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.