Extraction of Aluminum by AlCl Disproportionation Process in Vacuum

Abstract:

The extraction of aluminum by the AlCl disproportionation process in vacuum was researched using the furnace designed by ourselves. The features of aluminum products were characterized by X-ray diffraction, scanning electronic microscope and energy-dispersive X-ray spectroscopy. The results indicated that the purity of aluminum products increased with decreasing condensation temperature; aluminum products could be oxidized as their size was too small; the residues of the extraction of aluminum from alumina could be further treated with this process to generate metallic aluminum with a little carbon; aluminum products with high Al₄C₃, C and Al₂O₃ impurities could be purified by this process. The conclusions could provide bases for the industrial application of the process.

• Periodical: Advanced Materials Research (Volumes 641-642)
• Pages: 262-265
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.641-642.262
• Online since: January 2013
• Authors: Yue Bin Feng, Qing Chun Yu, Bin Yang, Yong Nian Dai
• Keywords: AlCl, Aluminum (Al), Carbothermal Reduction, Disproportionation, Vacuum

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