| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Alumina & Bauxite
|
| Presentation Title |
Zero Waste Alumina Production |
| Author(s) |
Casper Van Der Eijk, Camilla Sommerseth |
| On-Site Speaker (Planned) |
Casper Van Der Eijk |
| Abstract Scope |
The Pedersen Process is an alternative process for the production of alumina. Initially, bauxite ores, or other aluminous materials, are smelted with lime to produce pig iron and a slag of mainly calcium aluminate composition. The latter is subsequently leached in Na2CO3 solutions to extract alumina.
The Pedersen Process can handle a wide range of bauxite qualities and the by-products can be used in other industries, thereby eliminating the need for land deposit. An EU financed project, called EnsureAl, has investigated the possibility of the commercialization of the Pedersen Process. The presentation will summarize the main findings of this project concerning the quality of the produced alumina and the by-products. It will also present a comparison with the Bayer process concerning the environmental impact and costs of the process. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Aluminum, Recycling and Secondary Recovery, Pyrometallurgy |