Utrasonic topic: "Ultrasonic Cavitation and its Applications"
When high-power ultrasound is coupled into liquid, acoustic cavitation occurs. Acoustic cavitation creates extreme conditions, including very high temperature and pressure differentials, turbulences, shear forces and liquid jets. These intense forces of ultrasonic cavitation are used for various applications such as homogenization, emulsification, dispersing & wet-milling, extraction, disintegration and sonochemical reactions.
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Sonochemistry is the field of chemistry where high-intensity ultrasound is used to induce, accelerate and modify chemical reactions (synthesis, catalysis, degradation, polymerization, hydrolysis etc.). Ultrasonically generated cavitation is characterized by unique energy-dense conditions, which promote and intensify chemical reactions.…https://www.hielscher.com/sonochemistry-and-sonochemical-reactors.htm
Electrolysis of dilute sulfuric acid produces hydrogen gas and oxygen gas. Ultrasonication reduces the diffusion layer thickness at the electrode surface and improves mass transfer during electrolysis. Ultrasonication can increase hydrogen gas production rates in the electrolytic cell, significantly.…https://www.hielscher.com/hydrogen-production-electrolysis.htm
High-shear ultrasonicators for inline mixing processes offer various advantages when compared to conventional colloid homogenizers. Using high-power ultrasound for mixing enables Hielscher ultrasonic high-shear mixers to produce uniformly dispersed colloidal suspensions and emulsions in the nano-range. Ultrasonic inline homogenizers…https://www.hielscher.com/high-shear-inline-mixers.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
Sonoelectrochemistry combines the benefits of electrochemistry with sonochemistry. The biggest advantage in these techniques is their simplicity, low cost, reproducibility and scalability. Hielscher Ultrasonics offers complete sonoelectrochemical setup for batch and inline use. It consists of: an advanced ultrasonic…https://www.hielscher.com/sonoelectrochemistry-setup-2000-watts-ultrasound.htm
Electro-Sonication is the combination of the effects of electricity with the effects of sonication. Hielscher Ultrasonics developed a new and elegant method to use any sonotrode as electrode. This puts the power of ultrasound directly at the interface between…https://www.hielscher.com/electro-sonication-ultrasonic-electrodes.htm
Ultrasonic dismembrators are commonly used in the laboratory, bench-top and industry to prepare homogeneous colloidal suspensions such as emulsions and dispersions with droplet or particle sizes in the submicron- and nano-range. Furthermore, ultrasonic dismembrators are used for cell disruption,…https://www.hielscher.com/most-efficient-ultrasonic-dismembrators.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
Cavitation erosion occurs on material surfaces that are exposed to intense ultrasonic cavitation. Cavitation erosion testing is a fast method to measure erosion resistance of materials or coatings to intense stress and other erosion factors. It provides an easy…https://www.hielscher.com/cavitation-erosion-testing.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
Water-soluble polyhydroxylated C60 fullerene, called fullerenol or fullerol, is a strong free radical scavenger and is therefore used as an antioxidant in supplements and pharmaceuticals. Ultrasonic hydroxylation is a rapid and simple one-step reaction, which is used to produce…https://www.hielscher.com/ultrasonic-polyhydroxylated-c60-fullerenol.htm
Ultrasonic retting of fibrous materials such as hemp and flax fibers allows for a fast and efficient fiber modification. Ultrasonically processed bast fibers are fibrillated and show a significantly higher specific surface, increased tensile strength and flexibility. Ultrasonic fiber…https://www.hielscher.com/ultrasonic-hemp-fibre-processing.htm