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•  Barbell Horn Ultrasonic Technology
•  Ultrasonic Horn Designs and Properties
•  Ultrasonic Transducers
•  Flow-Through Reactor Chambers (Flow Cells)

In this section, main components of ISM's ultrasonic processors are described. Please follow the above links for general background on our ultrasonic technology and detailed information on each component.

High ultrasonic amplitudes generating intense acoustic cavitation in liquids are known to be required for most ultrasound-assisted processes. Intense ultrasonic cavitation leads to the formation of high-speed micro-jets and strong mechanical shear forces, in addition to producing enormous localized temperatures (~5,000 K), pressures (~1,000 atm) and heating/cooling rates (1010 K/s). These extreme conditions can significantly promote a wide variety of useful physical and chemical processes, which has been demonstrated by a huge body of laboratory-scale research in the field of sonochemistry. High ultrasonic amplitudes of 70 – 100 microns can be achieved by laboratory processors available from many manufacturers. However, due to technological limitations, conventional industrial-scale ultrasonic processors are restricted to amplitudes below 25 microns, which is insufficient for most processes. Consequentially, despite its potential, the industrial implementation of liquid processing by high-power ultrasound is still very limited.

ISM is currently the only company able to directly scale up laboratory-optimized processes to industrial production, without reducing the ultrasonic amplitudes. This is made possible by our patented Barbell Horn Ultrasonic Technology (BHUT), which provides the following features:

  • ISM's BHUT-based ultrasonic horns can create extremely high amplitudes at any scale, from laboratory to industrial, guaranteeing reproducible results as a process is scaled up.
  • ISM’s processors incorporate water-cooled piezoelectric transducers, which are sealed from the outside environment and permit continuous operation at high power without overheating. These transducers are also immune to humidity and can be used with flammable solvents.
  • ISM’s processors incorporate patented flow-through sonochemical reactor chambers, which ensure that all of the liquid undergoes ultrasonic cavitation treatment of equally high intensity. None of the liquid is able to bypass the active zone in the reactor.
  • ISM's ultrasonic generators have rugged internal circuitry, ensure a continuous resonant frequency lock during operation and provide constant ultrasonic amplitude, adjustable from 20 to 100 %.

ISM also offers process consulting services, helping its clients determine the most efficient ultrasonic exposure conditions, formulations and production rates for their products. After conducting bench-scale optimization at ISM’s facility, our scientists remain available to assist with industrial implementation of the processes.