This study investigated the position of ultrasonic irradiation source and reactor geometry on fragmentation rate of a layered compound, α-zirconium phosphate (α–ZrP). By numerically solving the acoustic pressure distribution using COMSOL Multiphysics®, it is clarified the mechanism whereby the operating factors influenced the α–ZrP dispersion to make a suggestion of guideline of the process design method. Two vessels made of glass with a flat-bottom and a spherical-bottom, respectively, were used. Although the flat-bottom vessel at lower horn position showed the best performance of fragmentation, the region of high acoustic pressure field in the flat bottom vessel sharply narrowed and the transmittance became prominently low. On the other hand, no significant difference of the transmittance value in the spherical bottom vessel between the cases of low and high horn positions could be observed and the spherical bottom vessel was robust for the horn position. These results suggest that not only the magnitude of acoustic pressure but also the size of high acoustic pressure region is also an important factor and a spherical bottom vessel is one of suitable shape which gives large size of high acoustic pressure region regardless of the horn position.

这项研究调查了超声辐射源的位置和反应器的几何形状对层状化合物α-磷酸锆（α-ZrP）裂解速率的影响。通过使用COMSOLMultiphysics®数值求解声压分布，阐明了工作因素影响α-ZrP弥散的机理，从而为工艺设计方法提供了建议。使用分别由玻璃制成的具有平底和球形底的两个容器。尽管在较低的喇叭位置处的平底血管显示出最佳的碎裂性能，但在平底血管中的高声压场区域急剧变窄，并且透射率显着降低。另一方面，在低号角位置和高号角位置的情况下，在球形底部容器中的透射率值没有显着差异，并且球形底部容器对于号角位置是坚固的。这些结果表明，不仅声压的大小，而且高声压区域的大小也是重要的因素，并且球形底部容器是合适的形状之一，其无论角部位置如何都具有大的高声压区域的大小。