Coated calcium peroxide particles useful in the treatment of water
US4293426A · kind A · utility
23Cited by
9References
30Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 17, 1978 |
| Grant date | Oct 6, 1981 |
| Priority date | — |
| Expiry date | Nov 17, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2998
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Solid particles containing calcium peroxide and coated with a coating agent containing a water-insoluble solid compound having a melting point of at least 50.degree. C. The particles can be used in the treatment of water and make it possible to ensure sufficient oxygenation for very long periods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.