Optimization of the separation and purification of Al13

The optimum process for the separation and purification of Al13 was investigated in detail in this paper. The various influencing factors were discussed. The experimental results show that the concentration and basicity (B, OH/Al ratio) of polyaluminum chloride (PACl), Al/SO4 ratio, Ba/SO4 ratio and ultrasonic reaction have different roles in the separation and purification of Al13. Moderate concentration of PACl with the basicity around 2.0 gives some benefits in the separation of Al13. An optimization condition has then been found to obtain high purity Al13 by involving Al/SO4 and Ba/SO4 ratios of 1:1, and 3 h ultrasonic time. Further indication on the separation of Al13 is also discussed.