Agglomeration of alumina material
US5858325A · kind A · utility
4Cited by
10References
21Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Aug 22, 1994 |
| Grant date | Jan 12, 1999 |
| Priority date | — |
| Expiry date | Aug 22, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22B1/243
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for the agglomeration of powder or dust of alumina containing material (herein referred to as "alumina powder"), wherein an aqueous slurry of the alumina powder is formed, the slurry containing a sufficient quantity of an inorganic binder comprising a polymer form of a hydroxy salt of aluminum. The slurry is subjected to a spray drying operation to form agglomerated granules of the alumina powder, and the granules then are calcined at an elevated temperature for their consolidation. The alumina containing material comprises Al.sub.2 O.sub.3.nH.sub.2 O, wherein n is in the range of from 0 to 3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.