| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
New Directions in Mineral Processing, Extractive Metallurgy, Recycling and Waste Minimization: An EPD Symposium in Honor of Patrick R. Taylor
|
| Presentation Title |
Selective Chlorination as an Innovative Extraction Method for Valuable Metals from Iron Containing Matrix |
| Author(s) |
Stefan Steinlechner, Kerrin Witt, Lukas Höber |
| On-Site Speaker (Planned) |
Stefan Steinlechner |
| Abstract Scope |
In different nonferrous metal producing industry sectors the impurity element iron has to be removed from the process solution. Examples are the jarosite or goethite from nickel or zinc production but also the red mud from aluminum production. Regardless of environmental concerns the material is land filled in almost any case, although valuables such as indium, silver, gold, nickel, or zinc are present in considerable amounts. Within the presented research a low carbon dioxide emitting multi-metal recovery from such iron containing residues by means of a selective chlorination extraction has been fundamentally evaluated by experiments but also by comprehensive thermodynamic calculations. The paper summarizes the thermodynamic fundamental concept exploited to separate the dominating iron matrix from the valuable elements and shows verification experiments in a lab size of several grams. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Extraction and Processing, Recycling and Secondary Recovery, Sustainability |