Process for the continuous conversion of one hydroxylamine salt to another hydroxylamine salt
US5411725A · kind A · utility
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1References
17Claims
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Assignee
Inventors
Key dates
| Filing date | Oct 18, 1993 |
| Grant date | May 2, 1995 |
| Priority date | — |
| Expiry date | Oct 18, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B21/1454
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention relates to a process for the continuous conversion of one hydroxylamine salt to another hydroxylamine salt, said process involving a countercurrent liquid-liquid extraction followed by a countercurrent liquid-liquid re-extraction. Characteristically, the extractant is used in the extraction step in the salified form and in the acid form.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.