High-density sodium perborate and method of preparation
US4211759A · kind A · utility
4Cited by
10References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 12, 1979 |
| Grant date | Jul 8, 1980 |
| Priority date | — |
| Expiry date | Mar 12, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B15/12
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A sodium perborate (NaBO.sub.2, H.sub.2 O.sub.2, 3H.sub.2 O) product having approximately spherical particles of size between about 250 and 600 microns, a bulk density between about 0.75 and 1.05 Kg./liter and a superior resistance to abrasion and impact, is prepared by a method comprising crystallization from a supersaturated aqueous solution of sodium perborate in the presence of an anionic surfactant and in the absence of alkaline metal silicates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.