| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Rare Metal Extraction and Processing
|
| Presentation Title |
CO2 Optimized Recovery of Special Metals from Precipitation Residue by Selective Chlorination |
| Author(s) |
Stefan Steinlechner, Lukas Hoeber |
| On-Site Speaker (Planned) |
Stefan Steinlechner |
| Abstract Scope |
Millions of tons of iron precipitation residues, predominantly jarosite, are accumulating in the primary zinc- or primary precious metals industry every year. 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 CO2-optimized multi-metal recovery from the residues jarosite by means of a selective chlorination extraction has been evaluated by executed experiments but also by a multidimensional simulation of possible process parameters, utilizing a python algorithm in combination with automated FactSage process step simulation. This allows a simultaneous iteration of relevant reaction parameters such as temperature, pressure, stoichiometry, or variation of additives and with this offers a high degree of freedom in the choice of evaluated reactants. The paper will outline a selection of possibly recovered special metals and the best choice of additives and process parameters. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Copper / Nickel / Cobalt, Extraction and Processing, Recycling and Secondary Recovery |