Process for the production of sodium percarbonate by atomization
US4018874A · kind A · utility
5Cited by
3References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 15, 1974 |
| Grant date | Apr 19, 1977 |
| Priority date | — |
| Expiry date | Aug 15, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B15/103
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Processes for the preparation of alkali metal percarbonate which comprise separately spraying into a reaction chamber a hot aqueous solution of sodium hydroxide and an aqueous solution of hydrogen peroxide and introducing a hot gas containing air and carbon dioxide to obtain sodium percarbonate, the product having a mean particle diameter between 0.1 and 0.5 mm, an apparent density between 0.2 and 1 g/cm.sup.3, and an active oxygen content between 7 and 15.3 percent, the sodium percarbonate being particularly adapted for use in domestic laundry products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.