Method for production of aluminum
US6361580B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2000 |
| Grant date | Mar 26, 2002 |
| Priority date | — |
| Expiry date | Aug 21, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22B21/02
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A continuous process for the production of elemental aluminum is described. Aluminum is made from aluminum oxide and a reducing gas such as a light hydrocarbon gas or other reducing gas, for example hydrogen. In the process, a feed stream of the aluminum oxide and the reducing gas is continuously fed into a reaction zone. There the aluminum oxide and reducing gas are reacted at a temperature of about 1500° C. or greater in the reaction zone to provide a continuous product stream of reaction products, which include elemental aluminum. The product stream is continuously quenching after leaving the reaction zone, and the elemental aluminum is separated from the other reaction products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.