China Nonferrous Metallurgy

Aluminum alloy has the advantages of corrosion resistance, easy processing, high strength, low density and so on. It has a large number of applications in all walks of life. Aluminum alloy prepared by molten salt electrolysis method has the characteristics of simple production process, high efficiency, low production cost and short production cycle. In recent years, it has been widely concerned, among which the selection of molten salt system has become the main research hotspot. This paper divides molten salt system into high-temperature molten salt and ionic liquid by temperature. The advantages, classification and some reaction mechanisms of these two molten salt systems are reviewed. Based on both molten salt systems, the preparation process of some aluminum alloys and related technological innovations are introduced respectively. Finally, the advantages and disadvantages of high-temperature molten salt and ionic liquid are described respectively, and their future development trend is prospected.