Process for the production of alkalithiocyanate
US4626423A · kind A · utility
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4References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 8, 1986 |
| Grant date | Dec 2, 1986 |
| Priority date | — |
| Expiry date | Apr 8, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01C3/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for the production of solid or dissolved alkalithiocyanate by reaction of dissolved alkalicyanide with an alcoholic sulphur suspension at the boiling point of the alcohol. The alcohol is distilled off as an azeotrope and the unreacted sulphur is separated. For the isolation of the solid product, a pH of 5-9 is adjusted in the solution obtained and thus a crystallization or evaporation is carried out.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.