| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
2022 Technical Division Student Poster Contest
|
| Presentation Title |
SPG-7: Sustainable Process Flowsheet for Recovery of Value added Products from Bauxite Residue |
| Author(s) |
Himanshu Tanvar, Brajendra Mishra |
| On-Site Speaker (Planned) |
Himanshu Tanvar |
| Abstract Scope |
The growing stockpiles of bauxite residue and associated environmental hazards require a sophisticated process flowsheet for complete valorization and value recovery. Considering the association of multiple elements (Fe, Al, Si, Ca, Ti, V, Sc) within bauxite residue, metal extraction is of prime interest. The complex association of different elements and physical and chemical characteristics makes the extraction and purification process expensive and challenging. The present study focuses on developing a novel hydrometallurgical flowsheet for subsequent recovery of base metals and critical elements from bauxite residue. The major elements present in bauxite residue are recovered as high purity magnetite, alumina, titania, silica and calcium carbonate. Whereas critical elements (such as V and Sc) are recovered in the liquid stream generated after the recovery of base metals. The proposed process is environmentally sound with near-zero waste discharge and presents an excellent opportunity to utilize bauxite residue as a multi-element resource. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Extraction and Processing, Hydrometallurgy, Recycling and Secondary Recovery |