Process for the production of aluminium
US4245822A · kind A · utility
2Cited by
4References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 21, 1978 |
| Grant date | Jan 20, 1981 |
| Priority date | — |
| Expiry date | Nov 21, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22B21/02
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for the production of aluminium in two steps: EQU 2Al.sub.2 O.sub.3 +9C=Al.sub.4 C.sub.3 +6CO (ii) and EQU Al.sub.4 C.sub.3 +Al.sub.2 O.sub.3 =6Al+3CO (iii) Reaction (ii) takes place in a materials addition chamber and reaction (iii) in a high temperature chamber. Slag is circulated between the chambers via conduits by the action of gas generated in reaction (iii) in the conduits. Aluminium production in the high temperature chamber and slag circulation rate are independently controllable by the provision of independent heat sources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.