Both microreactor and sonochemistry technologies are important means to enhance chemical process

regardless of advantages and disadvantages in each technique. The concept of “sonochemical microreactor” is elucidated

which synergistic intensification can be achieved by integration of microreactor with sonochemistry technology. Ultrasound is used to intensify fluid mixing

enhance multi-phase mass transfer

prevent and dredge clogging in microchannel. In the meantime

microreactor is used to effectively control sound and bubble fields

and resolve scaling-up challenges of acoustic cavitation process. Further

acoustic cavitation behavior

regulation law of sound and bubble fields in sonochemical microreactor

and intensification mechanism of multi-phase mixing and mass transfer are presented indetail. Finally

future development direction in this area is envisioned. Further study on the spatiotemporal phenomena at ultrasonic cavitation interface is the fundamental for realization and optimization of ultrasonic intensification.