Production of calcium hypochlorite
US4500506A · kind A · utility
1Cited by
9References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 30, 1983 |
| Grant date | Feb 19, 1985 |
| Priority date | — |
| Expiry date | Sep 30, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B11/064
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Neutral calcium hypochlorite is made by producing and separating out from the mother liquor crystals of dibasic calcium hypochlorite; reacting the dibasic calcium hypochlorite with a solution free of insoluble impurities and containing hypochlorite ions to produce hemibasic calcium hypochlorite crystals; separating the crystals of hemibasic calcium hypochlorite from the mother liquor; and converting the hemibasic calcium hypochlorite crystals into neutral calcium hypochlorite.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.