Process for the removal of impurities in reacted alumina
US4525181A · kind A · utility
5Cited by
12References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 6, 1984 |
| Grant date | Jun 25, 1985 |
| Priority date | — |
| Expiry date | Nov 6, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01F7/46
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Process for the separation of fine dust which contains impurities from alumina. The contaminated alumina is firstly subjected to a disintegration step in order to liberate fine dust from the alumina, and then the purified alumina is selectively separated from the fine impurity-containing dust in a separation step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.