Process for manufacture of calcium hypochlorite
US4337236A · kind A · utility
5Cited by
10References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 7, 1980 |
| Grant date | Jun 29, 1982 |
| Priority date | — |
| Expiry date | Aug 7, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B11/064
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A novel process for the production of granular calcium hypochlorite compositions is provided which comprises reacting neutral calcium hypochlorite with an alkaline solution comprised of an alkali metal hypochlorite and an alkali metal hydroxide. The reaction produces a slurry from which a wet cake comprised of neutral calcium hypochlorite and a residual amount of hemibasic calcium hypochlorite is recovered and dried. During the drying process in which granular calcium hypochlorite compositions are obtained, there is a substantial reduction in the loss of available chlorine from the product.
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