The Separation Behavior of Impurities in the Purification of High-Purity Magnesium via Vacuum Distillation

Abstract Magnesium-based materials with exceptional properties are being widely used in the automotive and aerospace industries, as well electronic equipment Mg-based implants. The development of many advanced engineering structures precision devices prompts demand for high-purity Mg better performance service. However, current purification methods meet challenges such complex equipment, potential dangers due to powdery condensed products, lack systematic analysis impurity behavior. Here, we report commercial raw into 99.9958% (± 0.0034%) pure magnesium products through one-step vacuum distillation. process adopts a vertical distillation device, which has advantages high recovery efficiency, lumpy condensation easy cleaning, reusability. Experimental results confirm that evaporation is more effective than sublimation magnesium. Then, behavior eight impurities analyzed theoretically experimentally. significantly verify difficulty sequence separation from base, Zn > Ca Pb Al Cu Ni. similar equilibrium vapor pressure coefficient close unity reasons cause zinc be most difficult one separated. Graphical