Utrasonic topic: "How to use Ultrasonic Cavitation"
Ultrasonic cavitation, also acoustic cavitation, describes the generation of intense cavitation by means of power ultrasound. When high power, low frequency ultrasound waves are coupled into liquid, alternating high-pressure / low-pressure cycles occur. During those alternating pressure cycles minute vacuum bubbles or gas pockets are generated. After the initial formation of the cavitation bubble, subsequent cavity dynamics involve growth and finally the collapse of the vacuum bubble. The cavities grow over several cycles until they reach a point, when the vacuum bubble cannot absorb more energy, so that the void implodes violently. During the bubble collapse, locally extreme energy-dense conditions occur. In these cavitational “hot spots”, temperature of up to 5000K, pressures of up to 2000atm, corresondingly high temperature and pressure differentials as well as liquid jets with up to 120m/s.
These intense forces are used for manifold applications such as homogenization, emulsification of two or more immiscible phases, dispersion and deagglomeration of (nano-)particles, wet-milling, cell lysis, extraction, leaching, sonochemical reactions and many more.
Hielscher Ultrasonics is specialized in the development and manufacturing of high-performance ultrasonic processors and reactors. Covering the whole range from lab, bench-top and industrial ultrasonic systems, Hielscher can offer you the most suitable ultrasonic processor for your application and process target.
Read more about acoustic cavitation and its applications in lab, R&D and industry!
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Clean wire surfaces are important when it comes to wire saws and diamond wire saws. Only clean, well-maintained wires produce precise cuts (e.g., silicon wafers, semiconductors, minerals and stones) ans provide high efficiency and quality. Ultrasonic inline wire saw…https://www.hielscher.com/ultrasonic-inline-cleaning-of-wire-saws-and-cutting-wires.htm
Ultrasonication is a well-established process intensifying technique, which is used in many kinds of liquid applications such as homogenization, mixing, dispersing, wet-milling, emulsification as well as improving heterogeneous chemical reactions. If your production process is underperforming and does not…https://www.hielscher.com/ramp-up-slow-and-insufficient-manufacturing-processes.htm
Ultrasonication is an efficient and simple method to produce magnesium hydride for hydrogen storage. Ultrasound accelerates the hydrolysis of magnesium and hydrogen in order to form magnesium hydride. In contrast to the conventional dissociative chemisorption process, ultrasonic hydrolysis of…https://www.hielscher.com/magnesium-hydride-synthesis-via-hydrolysis.htm
Electrode surface fouling is a serious problem in many electrochemical production processes and in electrochemical sensors. Electrode fouling can affect the performance and energy efficiency of an electrochemical cell. Ultrasonication is an effective means to avoid and remove electrode…https://www.hielscher.com/solution-to-electrode-surface-fouling.htm
Ultrasonic horns or probes are used widely for manifold liquid processing applications including homogenization, dispersing, wet-milling, emulsification, extraction, disintegration, dissolving, and de-aeration. Learn the basics about ultrasonic horns, ultrasonic probes and their applications. Ultrasonic Horn vs Ultrasonic Probe Often,…https://www.hielscher.com/application-of-power-ultrasound-using-ultrasonic-horns.htm
Ultrasonic extraction is the preferred technique to isolate bioactive compounds from botanicals. Sonication achieves a complete extraction and thereby superior extract yields are obtained in a very short extraction time. Being such an efficient extraction method, ultrasonic extraction is…https://www.hielscher.com/ultrasonic-extraction-and-its-working-principle.htm
Power generators, ship engines and railway engines, which are fuelled with diesel, can be run more efficiently when water-in-diesel emulsions are used. Water-diesel emulsion fuels reduce the fuel consumption, lower the combustion temperature, burn cleaner and reduce emissions, such…https://www.hielscher.com/ultrasonic-emulsions-for-water-in-diesel-combustion.htm
To exploit the exceptional functionalities of carbon nanotubes (CNTs), they must be homogeneously dispersed. Ultrasonic dispersers are the most common tool to distribute CNTs into aqueous and solvent-based suspensions. The ultrasonic dispersing technology creates sufficiently high shear energy to…https://www.hielscher.com/uniformly-dispersed-nanotubes-by-sonication.htm
Chitosan is a chitin-derived biopolymer which has many applications in pharma, food, agriculture and industry. Ultrasonic deacetylation of chitin to chitosan intensifies the treatment significantly - leading to an efficient and fast process with a high chitosan yield of…https://www.hielscher.com/ultrasonic-deacetylation-of-chitin-to-chitosan.htm
Research has shown that ultrasonic milling can be successfully used for fabrication of thermoelectric nanoparticles and has the potential to manipulate the surfaces of the particles. Ultrasonically milled particles (e.g. Bi2Te3-based alloy) showed a significant size reduction and fabricated…https://www.hielscher.com/ultrasonic-milling-of-thermoelectrical-nano-powders.htm
Ultrasonic terpene extraction has been proven to give high yields of terpene caryophyllene oxide, e.g. from cannabis and hops. Caryophyllene oxide is a terpene found in cannabis, hops, pepper, basil and rosemary. As an active compound, extracted terpene caryophyllene…https://www.hielscher.com/ultrasonic-terpene-extraction.htm
Curcumin is a pharmacological and nutritional phytochemical present in the rhizomes of Curcuma longa. For high extraction yield, sonication is the most efficient technique. Ultrasonic extraction results in high quality, high yield and requires only short processing time. Ultrasonic…https://www.hielscher.com/ultrasonic-cucurmin-extraction.htm