Production of high strength alumina spheres by hydrogelling corresponding slurries
US4198318A · kind A · utility
44Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 24, 1978 |
| Grant date | Apr 15, 1980 |
| Priority date | — |
| Expiry date | Nov 24, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/21
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Alumina spheres having high crush strength are produced by hydrogelling low viscosity acidified alumina slurries in a surfactant-containing ammonia solution, said slurries being inserted into the ammonia solution dropwise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.