Hydrated alkali metal dichloroisocyanurate and its production
US4374985A · kind A · utility
2Cited by
4References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 5, 1979 |
| Grant date | Feb 22, 1983 |
| Priority date | — |
| Expiry date | Apr 5, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D251/36
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Hydrated alkali metal dichloroisocyanurate particles are prepared in a process which comprises, in a first step, spraying droplets of an aqueous slurry of alkali metal dichloroisocyanurate into an evaporation zone fed with a moving stream of heated gas to evaporate water from the droplets and form dry porous solid spherical particles of hydrated sodium dichloroisocyanurate. In a second step, the dry particles are fluidized in a cooling gas until cooled to a temperature below about 50.degree. C. The resulting porous hydrated particles have a uniform distribution of hydration, are dust-free, and quickly dissolve in water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.