Industry-Specific Ultrasonic Solutions
Hielscher ultrasonic devices are used in many industries, such as renewable fuels & biomass, food & beverage, paint & ink, coatings, wire and cable, or chemical processing.
Hielscher ultrasonic devices are applied to continuous algae reactors to remove algae film from the transparent surface. After the algae growth and thickening, ultrasonic cavitation is used for the extraction of algae oil and other valuable compounds.
Biodiesel is a renewable fuel – an alternative to diesel fuel made from petroleum. Biodiesel is made by transesterification from sources, such as vegetable oil, algae oil, animal fats or grease. The manufacturing of biodiesel involves the catalytic reaction with alcohol. Ultrasonic mixing of the oil, fat or grease with the alcohol improves the reaction speed and yield significantly. This reduces investment and operational costs.
Sonochemistry is the application of ultrasound to chemical reactions and processes. The mechanism causing sonochemical effects in liquids is the phenomenon of acoustic cavitation. The sonochemical effects to chemical reactions and processes include increase in reaction speed and/or output, more efficient energy usage, performance improvement of phase transfer catalysts, activation of metals and solids or increase in the reactivity of reagents or catalysts.
Hielscher ultrasonic devices are used in the synthesis of nanomaterials as well as in the formulation of compounds and composites containing nano-materials. This includes the use of ultrasonics during precipitation and the deagglomeration of nano-size materials, like metal oxides or carbon nanotubes.
The dispersing and size reduction of pigments in inkjet inks and printing inks is a typical application of Hielscher ultrasonic devices. The ultrasonic cavitation deagglomerates micro-size and nano-size materials to single-dispersed particles.
Ultrasound is used in the formulation of paints and coatings for:
Ultrasonic cleaning is an environmentally friendly alternative for the cleaning of continuous materials, such as wire and cable, tape or tubes. The effect of the cavitation generated by the ultrasonic power removes lubrication residues like oil or grease, soaps, stearates or dust.
Hielscher ultrasonic devices are used in fuel research facilities and processing plants for the ultrasonication of mineral and renewable fuels. This applications include NOx-reduction, the desulfurization of oil & diesel, biodiesel manufacturing, sludge disintegration and ethanol production.
The use of ultrasonics in the food industry is not limited to the disintegration of cells, the inactivation of enzymes and to the dispersing and emulsification of food ingredients and additives. Hielscher ultrasonic devices are also used in the leak testing of soda bottles and cans as well as in the degassing of liquids, such as chocolate. Ultrasonication is a non-thermal alternative to conventional heat-treatment for liquid food and drinks, such as sauces, honey or milk.
The formulation of new cosmetic products involves many processing challenges, such as the disintegration of cells and solids, or the dispersion and dissolving of powders into liquids. For such processes, as well as for the production of stable emulsions, degassing and homogenizing Hielscher offers ultrasonic mixing equipment for use in both, laboratory research and industrial production.
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Literature / References
- Abdullah, C. S. ; Baluch, N.; Mohtar S. (2015): Ascendancy of ultrasonic reactor for micro biodiesel production. Jurnal Teknologi (Sciences & Engineering) 77:5; 2015. 155-161.
- Carrillo-Lopez L.M., Garcia-Galicia I.A., Tirado-Gallegos J.M., Sanchez-Vega R., Huerta-Jimenez M., Ashokkumar M., Alarcon-Rojo A.D. (2021): Recent advances in the application of ultrasound in dairy products: Effect on functional, physical, chemical, microbiological and sensory properties. Ultrasonics Sonochemistry 2021 Jan 13;73.
- Petigny L., Périno-Issartier S., Wajsman J., Chemat F. (2013): Batch and Continuous Ultrasound Assisted Extraction of Boldo Leaves (Peumus boldus Mol.). International Journal of Molecular Science 14, 2013. 5750-5764.
- Seyed Mohammad Mohsen Modarres-Gheisari, Roghayeh Gavagsaz-Ghoachani, Massoud Malaki, Pedram Safarpour, Majid Zandi (2019): Ultrasonic nano-emulsification – A review. Ultrasonics Sonochemistry Vol. 52, 2019. 88-105.
- Aharon Gedanken (2003): Sonochemistry and its application to nanochemistry. Current Science Vol. 85, No. 12 (25 December 2003), pp. 1720-1722.
- Suslick, Kenneth S.; Hyeon, Taeghwan; Fang, Mingming; Cichowlas, Andrzej A. (1995): Sonochemical synthesis of nanostructured catalysts. Materials Science and Engineering: A. Proceedings of the Symposium on Engineering of Nanostructured Materials. ScienceDirect 204 (1–2): 186–192.
- Shah Purvin, Parameswara Rao Vuddanda, Sanjay Kumar Singh, Achint Jain, and Sanjay Singh (2014): Pharmacokinetic and Tissue Distribution Study of Solid Lipid Nanoparticles of Zidovudine in Rats. Journal of Nanotechnology, Volume 2014.