Utrasonic topic: "What is Sonochemistry?"
Sonochemistry is the application of ultrasound to chemical reactions and processes. SOnication is used to intensify chemical reactions such as synthesis and catalysis. When intense ultrasound waves are couples into liquids, the phenomenon of acoustic cavitation occurs. Ultrasonic cavitation improves mass transfer between reactants, speeds up the reaction and/or allows to change the chemicals pathway.
Learn more about Hielscher ultrasonic laboratory and industrial devices and how they are used in manifold sonochemical processes!
12 pages about this topic are being shown:
MultiSonoReactor for High-Throughput Inline Sonication
The Hielscher MultiSonoReactor is an ultrasonic flow-through reactor for large scale processing of liquids and slurries. Depending on the configuration, the MultiSonoReactor can process liquids and slurries with up to 30kW ultrasound power. Optimized flow conditions within the reactor ensure…
https://www.hielscher.com/multisonoreactor-for-high-throughput-inline-sonication.htm
Polyol Synthesis via Ultrasonic Transesterification
Polyols are synthetic esters produced mainly via a transesterification of triglycerides from vegetable oils or animal fats. These polyols are raw material for the production of polyurethans, biolubricants and other cemicals. Ultrasonication is used to enhance transesterification reactions by applying…
https://www.hielscher.com/polyol-synthesis-via-ultrasonic-transesterification.htm
Sonication Improves Fenton Reactions
Fenton reactions are based on the generation of free radicals such as hydroxyl •OH radical and hydrogen peroxide (H2O2). The Fenton reaction can be significantly intensified when combined with ultrasonication. The simple, but highly efficacious combination of Fenton reaction with…
https://www.hielscher.com/sonication-improves-fenton-reactions.htm
Ultrasonic Borophene Synthesis on Industrial Scale
Borophene, a two-dimensional nanostructured derivative of boron, can be efficiently synthesized via a facile and low-cost ultrasonic exfoliation. Ultrasonic liquid-phase exfoliation can be used to produce large quantities of high-quality borophene nanosheets. The ultrasonic exfoliation technique is widely used to…
https://www.hielscher.com/ultrasonic-borophene-synthesis-on-industrial-scale.htm
Optimized Chemical Reactor Efficiency by High-Power Ultrasonication
Ultrasonication is well known to intensify and/or initiate chemical reactions. Therefore, the integration of high-performance ultrasound is considered as reliable tool to promote chemical reactors for improved reaction outcomes. Hielscher Ultrasonics offers various reactor solutions to tweak your chemical process.…
https://www.hielscher.com/optimized-chemical-reactor-efficiency-by-high-power-ultrasonication.htm
Organocatalytic Reactions Promoted by Sonication
In organic chemistry, organocatalysis is a form of catalysis in which the rate of a chemical reaction is increased by an organic catalyst. This "organocatalyst" consists of carbon, hydrogen, sulfur and other nonmetal elements found in organic compounds. The application…
https://www.hielscher.com/organocatalytic-reactions-promoted-by-sonication.htm
Ultrasonically Promoted Michael Addition Reaction
Asymmetric Michael reactions are a type of organocatalytic reactions, which can benefit heavily from sonication. The Michael reaction or Michael addition is widely used for chemical syntheses, where carbon-carbon bonds are formed under mild conditions. Ultrasonication and its sonochemical effects…
https://www.hielscher.com/ultrasonically-promoted-michael-addition-reaction.htm
Sonochemically Improved Diels-Alder Reactions
Diels-Alder reactions are widely used for chemical syntheses, where atomic carbon-carbon bonds must be formed. Ultrasonication and its sonochemical effects are highly efficacious in driving and promoting Diels-Alder reactions resulting in higher yields, significantly reduced reaction time and at the…
https://www.hielscher.com/sonochemically-improved-diels-alder-reactions.htm
Sonochemically Improved Mannich Reactions
Mannich reaction are important carbon–carbon bond forming reactions, which are widely used in industries such as the pharmaceutical production and the synthesis of natural products. Whilst most of one-pot Mannich reactions are very slow, the positive effects of ultrasonication on…
https://www.hielscher.com/sonochemically-improved-mannich-reactions.htm
Ultrasonic Preparation of Catalysts for Dimethyl Ether (DME) Conversion
Dimethyl ether (DME) is a favourable alternative fuel, which can be synthesised from methanol, CO2 or syngas through catalysis. For the catalytic conversion to DME, potent catalysts are required. Nano-sized mesoporous catalysts such as mesoporous acidic zeolites, decorated zeolites or…
https://www.hielscher.com/ultrasonic-preparation-of-catalysts-for-dimethyl-ether-dme-conversion.htm
Continuously Stirred-Tank Reactors Agitated with Ultrasound
Continuously stirred tank reactors (CSTR) are widely applied for various chemical reactions including catalysis, emulsion chemistry, polymerization, synthesis, extraction and crystallization. Slow reaction kinetics is a common problem in CSTR, which can easily be overcome by the application of power-ultrasonication.…
https://www.hielscher.com/continuously-stirred-tank-reactors-agitated-with-ultrasound.htm
Sonochemistry and Sonochemical Reactors
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. Faster…
https://www.hielscher.com/sonochemistry-and-sonochemical-reactors.htm