Sulfide Route to Chromium–Nickel–Molybdenum Ferroalloys for Stainless Steel Production
Abstract New methods of materials separation and metal production utilizing sulfide chemistries may support a paradigm shift in sustainable metallurgy. We leverage sulfidation with elemental sulfur, aluminothermic reduction, and slag refining to obtain a chromium–nickel–molybdenum ferroalloy and stainless steel using a sulfide-based route without direct greenhouse gas emissions. The absence of carbothermic reduction from the mineral, concentrate, and matte feedstocks tried herein indicates that argon-oxygen-decarburization may no longer be necessary to refine stainless steel products.
Authors
- Caspar Stinn (ORCID: https://orcid.org/0000-0002-0084-249X)
- Antoine Allanore (ORCID: https://orcid.org/0000-0002-2594-0264)
Institutions
- Massachusetts Institute of Technology (US)
Publication Details
- Journal
- Metallurgical and Materials Transactions B
- Published
- 2024-10-28
- DOI
- https://doi.org/10.1007/s11663-024-03288-8
- Citations
- 2
- Primary Topic
- Metallurgical Processes and Thermodynamics
- Type
- article
- Field-Weighted Citation Impact
- 0.43
Funders
- Massachusetts Institute of Technology