Application of Ultrasonic Sonochemistry
Ultrasound technology as a physical means and tool can produce a series of near-extreme conditions in the chemical reaction medium. This energy can not only stimulate or promote many chemical reactions, speed up the chemical reaction, and even change some of the chemistry. The direction of the reaction produces some unexpected effects and miracles. This is sonochemistry. Sonochemistry can be applied to almost all chemical reactions such as extraction and separation, synthesis and degradation, biodiesel production, treatment of microorganisms, degradation of toxic organic pollutants, biodegradation treatment, biological cell pulverization, dispersion and agglomeration, and the like.
Medicine extraction: refers to the ultrasound for the Chinese medicine cell crushing (broken) to achieve high efficiency extraction of useful substances. Compared with the conventional extraction technology, ultrasonic assisted extraction is fast, inexpensive, efficient, safe, low cost, wide applicability and so on.
Biodiesel Production: Preparation of Biomass Oil by Ultrasonic Emulsification - Diesel oil emulsion emulsions actually disperse biological oil droplets into another, non-miscible diesel fluid. Compared with other technologies, the prepared droplets can be finely dispersed with narrow distribution, high efficiency, good dispersing effect, and can increase the stability of the emulsion.
Ultrasonic anti-marine organisms: is based on the cavitation effect of ultrasound, when the micro-bubble nucleus in the liquid is activated under the action of the ultrasonic wave, it shows a series of dynamic processes such as oscillation, growth, shrinkage and collapse of bubbles. The bubbles in the liquid generate high temperatures of more than a few hundred atmospheres and thousands of degrees Celsius at the moment of rupture, enabling the adhesion of marine organisms to quickly peel off and crush the epidermal cells of marine organisms so as to achieve the purpose of preventing marine organisms.
Ultrasonic catalysis: Ultrasound is applied to the catalytic reaction process and can simulate the high-temperature and high-pressure reactions within the reactor at the microscopic scale, providing a very special physical and chemical environment for catalytic reactions that are difficult or impossible to achieve under general conditions. The catalytic reaction can be carried out in a milder environment. Can further improve the reaction speed, shorten the reaction time and improve the yield of the target product. The main applications are metal surface catalysis, phase transfer catalysis, enzyme catalysis.
Ultrasonic dispersion: Refers to the liquid as a medium, the role of ultrasound in the liquid by the "cavitation", the particles in the liquid dispersion and disassembly process. Ultrasound dispersion can be divided into emulsion dispersion (liquid - liquid dispersion) and suspension dispersion (solid - liquid dispersion), has been applied in many fields. The use of ultrasonic dispersion for suspensions is also dispersed in water or solvents such as titanium dioxide in the coating industry, in the dispersion of dyes in molten paraffin, dispersion of drug particles in the pharmaceutical industry, and in the food industry Scattered and so on.