Process for the digestion of goethite-containing bauxites
US4026989A · kind A · utility
3Cited by
3References
3Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Sep 29, 1975 |
| Grant date | May 31, 1977 |
| Priority date | — |
| Expiry date | Sep 29, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01F7/0633
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention provides for an improvement in the Bayer Aluminum manufacturing process wherein the digestion of goethite-containing bauxite is effected in higher yields, at lower temperatures and in a single step by carrying out said digestion in a wet caustic solution containing both calcium oxide and sodium chloride.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.