Aluminothermic Reduction of Sulfides via Reactive Vacuum Distillation
Master alloys for aluminum serve as a source of alloying elements that are essential to tailoring the metal to its many end uses, ranging from automotive to aerospace to structural applications. Presently, aluminum master alloy production is complicated by challenges ranging from high emissions and...
| Main Authors: | , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
Springer International Publishing
2024
|
| Online Access: | https://hdl.handle.net/1721.1/153461 |
| _version_ | 1826213091977723904 |
|---|---|
| author | Stinn, Caspar Toll, Spencer Allanore, Antoine |
| author2 | Massachusetts Institute of Technology. Department of Materials Science and Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Materials Science and Engineering Stinn, Caspar Toll, Spencer Allanore, Antoine |
| author_sort | Stinn, Caspar |
| collection | MIT |
| description | Master alloys for aluminum serve as a source of alloying elements that are essential to tailoring the metal to its many end uses, ranging from automotive to aerospace to structural applications. Presently, aluminum master alloy production is complicated by challenges ranging from high emissions and costs to low yields and productivities. While master alloys are typically produced from oxide, halide, or metallic feedstocks, sulfide chemistry provides a new opportunity to reduce economic and environmental costs via process intensification and increased yields. Herein, we explore the production of aluminum master alloys from sulfide feedstocks through aluminothermic reduction via reactive vacuum distillation. We present a thermodynamic framework to elucidate the behavior of aluminum as a reductant for sulfides, focusing on volatility and gas atmosphere. We demonstrate the production of a 10 wt% manganese master alloy via aluminothermic reduction of manganese sulfide, with a manganese yield of over 95%. Our thermodynamic and experimental results suggest that aluminothermic reduction of sulfides is a possible new route for the production of aluminum master alloys. |
| first_indexed | 2024-09-23T15:43:12Z |
| format | Article |
| id | mit-1721.1/153461 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T15:43:12Z |
| publishDate | 2024 |
| publisher | Springer International Publishing |
| record_format | dspace |
| spelling | mit-1721.1/1534612024-07-12T20:13:25Z Aluminothermic Reduction of Sulfides via Reactive Vacuum Distillation Stinn, Caspar Toll, Spencer Allanore, Antoine Massachusetts Institute of Technology. Department of Materials Science and Engineering Master alloys for aluminum serve as a source of alloying elements that are essential to tailoring the metal to its many end uses, ranging from automotive to aerospace to structural applications. Presently, aluminum master alloy production is complicated by challenges ranging from high emissions and costs to low yields and productivities. While master alloys are typically produced from oxide, halide, or metallic feedstocks, sulfide chemistry provides a new opportunity to reduce economic and environmental costs via process intensification and increased yields. Herein, we explore the production of aluminum master alloys from sulfide feedstocks through aluminothermic reduction via reactive vacuum distillation. We present a thermodynamic framework to elucidate the behavior of aluminum as a reductant for sulfides, focusing on volatility and gas atmosphere. We demonstrate the production of a 10 wt% manganese master alloy via aluminothermic reduction of manganese sulfide, with a manganese yield of over 95%. Our thermodynamic and experimental results suggest that aluminothermic reduction of sulfides is a possible new route for the production of aluminum master alloys. 2024-02-07T17:30:14Z 2024-02-07T17:30:14Z 2022-02-05 Article http://purl.org/eprint/type/ConferencePaper 2367-1181 2367-1696 https://hdl.handle.net/1721.1/153461 Stinn, C., Toll, S., Allanore, A. (2022). Aluminothermic Reduction of Sulfides via Reactive Vacuum Distillation. In: Eskin, D. (eds) Light Metals 2022. The Minerals, Metals & Materials Series. Springer, Cham. en_US 10.1007/978-3-030-92529-1_89 http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Springer International Publishing |
| spellingShingle | Stinn, Caspar Toll, Spencer Allanore, Antoine Aluminothermic Reduction of Sulfides via Reactive Vacuum Distillation |
| title | Aluminothermic Reduction of Sulfides via Reactive Vacuum Distillation |
| title_full | Aluminothermic Reduction of Sulfides via Reactive Vacuum Distillation |
| title_fullStr | Aluminothermic Reduction of Sulfides via Reactive Vacuum Distillation |
| title_full_unstemmed | Aluminothermic Reduction of Sulfides via Reactive Vacuum Distillation |
| title_short | Aluminothermic Reduction of Sulfides via Reactive Vacuum Distillation |
| title_sort | aluminothermic reduction of sulfides via reactive vacuum distillation |
| url | https://hdl.handle.net/1721.1/153461 |
| work_keys_str_mv | AT stinncaspar aluminothermicreductionofsulfidesviareactivevacuumdistillation AT tollspencer aluminothermicreductionofsulfidesviareactivevacuumdistillation AT allanoreantoine aluminothermicreductionofsulfidesviareactivevacuumdistillation |