dispersion ability and results between ultrasonic and boiling dispersion method in different power and time. The results show that the ultralsonic dispersion method use time and electric power sparingly
being more complete in dispersion than the boiling method
its dispersion effect is 1.13 to 1.23 times of the boiling one
and that the dispersion abilibty differs from time under same frequency. The conclusion suggests that the way of dispersion at 17.5krh
220V with 500mA electric current in 25 minutes ultrasonic dispersion or 700mA in 15minutes could get better results.