The principle of ultrasonic extraction
Ultrasonic extraction and separation based on the effective components in material and state of the existence of effective components, polarity, solubility and design a scientific and reasonable by using the method of ultrasonic vibration on the new technology of extraction, solvent quickly into the solid material, the material contained in the organic composition completely dissolved in solvent, as far as possible to get more ingredients extract, reoccupy appropriate separation methods, separate chemicals in the extract, then be refined, purified and chemical composition of the process to get the required monomer process.
Ultrasonic extraction is the use of ultrasonic radiation pressure produced by strong cavitation effect, the disturbance effect, high acceleration, breaking and mixing function of multistage effect, increase material molecular motion frequency and speed, increase the solvent penetration, increasing the target component into the solvent, promote extraction. Ultrasonic is a kind of elastic mechanical vibration wave, essentially different from the electromagnetic wave. Because electromagnetic waves can travel through a vacuum, and the ultrasonic transmission, must be in the medium to its through the media, form including expansion and compression, and that the movement of the fluid produced sharply, due to the change of sound pressure, solvent by compression and sparse, in acoustic sparse phase zone, air-pocket expansion grew up, and the surrounding liquid vapor or gas filled with. In the compression zone, air-pocket soon collapse, rupture, produce a large number of micro bubble, they can be used as a new gas nucleus. Now believe that the influence of ultrasound on chemical reactions, the main reason is that the micro bubble in grew up suddenly burst can produce strong shock waves.