Abstract Due to the importance of mixing to crystallization and reaction processes,a novel mixing device/crystallizer has been developed using a membrane vibration element,which aims to overcome the disadvantages of traditional agitation mixing from studying new mixing technology.It can achieve lowest shear stress and the maximum uniformity for solid suspension without any internal agitator.After designing and fabricating the mixer,the flow pattern is studied by a direct visual technique and measured mixing times of fluids at different middle-high viscosity using a decolorized method.By changing the vibration frequencies we found the optimal operation conditions in terms of mixing time.At the same time,in order to simulate crystallization process behaviors of solid suspension in the mixer is also studied by putting various density particles.This novel mixer can be widely used in many processes with great commercial and market potential.
2006, Vol. 23 
