Alumina hydrates
US5306480A · kind A · utility
5Cited by
14References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 17, 1990 |
| Grant date | Apr 26, 1994 |
| Priority date | — |
| Expiry date | Oct 17, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/12
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Alumina hydrate particles have a high surface area and low dispersity and may have a low soluble soda content. They may be made by milling a liquid suspension of alumina hydrate, subjecting the milled suspension to classification into coarse and fine fractions, recycling the coarse fraction to the mill and recycling the fine fraction to the classification stage. A narrow particle size distribution is obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.