Process for recovery of alumina-cryolite waste in aluminum production
US4053375A · kind A · utility
29Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 16, 1976 |
| Grant date | Oct 11, 1977 |
| Priority date | — |
| Expiry date | Jul 16, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/129
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Alumina-cryolite waste from aluminum pot lines is subjected to oxidation in a fluidized bed reactor to remove carbon and organic contamination. Agglomeration of the alumina-cryolite product occurs in the fluidized bed and a pellet product suitable for return to the aluminum pot lines is produced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.