Utrasonic topic: "Chemical synthesis can be significantly improved by sonication"
Chemical synthesis is a chemical reaction with the aim of converting one or more reactants into one or multiple products.
Intense ultrasound waves can be applied to improve chemical reactions (i.e. synthesis and catalysis) – a field known as sonochemistry. The effect of ultrasound on chemical reactions are based on the generation of acoustic cavitation in liquids. Sonication introduces energy into the chemical mixture, produces locally extreme conditions due to cavitation and promotes mass transfer. Thereby, it can greatly enhance chemical reactions such as synthesis (sono-synthesis) and catalysis (sono-catalysis). Ultrasonic energy can induce and accelerate reactions, increase the conversion rate as well as establish alternative synthetic pathways. As a result of that, ultrasound can make synthesis reactions more efficient, faster and environmental-friendlier.
Ultrasonically-assisted synthesis reactions such as the sono-synthesis of hydroxyapatite, silver nanoparticles, Mn3O4nanoparticles and a large variety of core-shell particles have been extensively studied and successfully scaled to industrial sized production.
12 pages about this topic are being shown:
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
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
Flow Cells and Inline Reactors for Lab Ultrasonicators
Ultrasonic lab homogenizers can be used for batch and inline processing of liquids and slurries. Typical applications include homogenization, dispersing, emulsification, dissolving as well as sonochemical reactions. For the continuous inline sonication, flow cells and in-line reactors in various sizes…
https://www.hielscher.com/flow-cells-and-inline-reactors-for-lab-ultrasonicators.htm
Ramp-up Slow and Insufficient Manufacturing Processes
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 achieve…
https://www.hielscher.com/ramp-up-slow-and-insufficient-manufacturing-processes.htm
Sono-Electrochemical Synthesis of Nanoparticles
The ultrasonically promoted electrochemical synthesis of nanoparticles is a highly efficacious and cost-efficient route to produce high-quality nanoparticles on large scale. The sono-electrochemical synthesis, also known as sonoelectrodeposition, allows to prepare nanostructures of various materials and shapes. Sonoelectrochemical Synthesis and…
https://www.hielscher.com/sono-electrochemical-synthesis-of-nanoparticles.htm
Synthesizing Nano-Silver with Honey and Ultrasonics
Nano-silver is use for its anti-bacterial properties to reinforce materials in medicine and material science. Ultrasonication allows for a rapid, efficacious, safe, and environmental-friendly synthesis of spherical silver nanoparticles in water. Ultrasonic nanoparticle synthesis can be easily scaled from small…
https://www.hielscher.com/synthesizing-nano-silver-with-honey-and-ultrasonics.htm
Coronavirus (COVID-19, SARS-CoV-2) and Ultrasonics
Ultrasonication is a powerful tool used in biology, molecular chemistry and biochemistry as well as in the production of pharmaceuticals. Bio-sciences use ultrasonic homogenizers to lyse cells and extract proteins and other intracellular materials, the pharma industry applied ultrasonics to…
https://www.hielscher.com/coronavirus-covid-19-sars-cov-2-and-ultrasonics.htm
Improved Fischer-Tropsch Catalysts with Sonication
Improved Synthesis of Fischer-Tropsch Catalysts with Ultrasound: Ultrasonic treatment of catalyst particles is used for several purposes. Ultrasonic synthesis helps to create modified or functionalized nano-particles, which have a high catalytic activity. Spent and poisoned catalysts can be easily and…
https://www.hielscher.com/improved-fischer-tropsch-catalysts-with-sonication.htm
Perovskite Synthesis by Ultrasonication
Ultrasonically induced and intensified reactions offer a facile, precisely controllable and versatile synthesis method for the production of light-activated materials, which often cannot prepared by conventional techniques. The ultrasonic crystallization and precipitation of perovskite crystals is a highly effective and…
https://www.hielscher.com/perovskite-synthesis-by-ultrasonication.htm
Ultrasonic Phosphor Recovery from Sewage Sludge
The worldwide demand for phosphor is increasing, whilst the supply of natural phosphorus resources are getting scarce. Sewage sludge and sewage sludge ash are rich in phosphorus and can be therefore used as source to reclaim phosphorus. The ultrasonic wet-chemical…
https://www.hielscher.com/ultrasonic-phosphor-recovery-from-sewage-sludge.htm