Extraction of alumina from bauxite ores
US3966874A · kind A · utility
3Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 1975 |
| Grant date | Jun 29, 1976 |
| Priority date | — |
| Expiry date | May 14, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01F7/0633
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An improved wet caustic process of the Bayer method for the extraction of alumina from bauxite containing amounts of both goethite and a monohydrated alumina wherein lime is added only after the bauxite slurry has been heated to a digestion temperature of at least 200.degree.C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.