Magnesium Recycling of Partially Oxidized, Mixed Magnesium-Aluminum Scrap Through Combined Refining and Solid Oxide Membrane (SOM) Electrolysis Processes
- Boston University
Pure magnesium (Mg) is recycled from 19g of partially oxidized 50.5wt.%Mg-Aluminum (Al) alloy. During the refining process, potentiodynamic scans (PDS) were performed to determine the electrorefining potential for magnesium. The PDS show that the electrorefining potential increases over time as the Mg content inside the Mg-Al scrap decreases. Up to 100% percent of magnesium is refined from the Mg-Al scrap by a novel refining process of dissolving magnesium and its oxide into a flux followed by vapor phase removal of dissolved magnesium and subsequently condensing the magnesium vapors in a separate condenser. The solid oxide membrane (SOM) electrolysis process is employed in the refining system to enable additional recycling of magnesium from magnesium oxide (MgO) in the partially oxidized Mg-Al scrap. The combination of the refining and SOM processes yields 7.4g of pure magnesium; could not collect and weigh all of the magnesium recovered.
- Research Organization:
- Metal Oxygen Separation Technologies, Inc.
- Sponsoring Organization:
- USDOE; USDOE EE Office of Industrial Technologies (EE-2F)
- DOE Contract Number:
- EE0003454
- OSTI ID:
- 1037589
- Report Number(s):
- DOE/EE/0003454-1; ISBN: : 978-1-1182-9121-4
- Journal Information:
- Magnesium Technology 2012, Journal Name: Magnesium Technology 2012
- Country of Publication:
- United States
- Language:
- English
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