Design of ultrasound-enhanced subcritical water extraction apparatus and analysis on the threshold of ultrasonic cavitation
Objective: To extract keratin of donkey skin for the preparation of colla corii Asini by polyfunctional extraction apparatus.
A novel extraction apparatus was described and used to extract volatile phenols from water samples. The apparatus consisted of a magnetic stirring, a conical flask and a modified glass tap.
Opetation efficiency is high, lifting load is heavy, movable and flexible etc. , is an ideal movable extraction apparatus in oil field.
