Ultrasonic Dispersion

Ultrasonic dispersion is transition into the dispersed state, i.e. fine or ultrafine ultrasonic grinding of solids or fluids due to ultrasonic vibrations effect. Due to specificity of the ultrasonic field created in the liquid medium, ultrasonic dispersion provides highly dispersed homogeneous, chemically pure suspensions (with the particle size below 1┬Ám).

Grinding of particles of solids suspended in liquid or simple destruction of solid and viscous substance of metal or stone type, submerged in the liquid, requires a mode, because destruction of strong substances requires shock waves that occur due to collapsing of cavitation bubbles.
For dispersion of amorphous substances of the rocks type, kaolin, graphite, gypsum etc., pre-cavitation mode is enough, which is provided by our «Acoustic-T» devices.

Of special interest is the action of ultrasonic field on solid particle suspensions in liquid or emulsion, i.e. suspension of two liquid substances in one another without mixing. Ultrasonic power of «Acoustic-T» devices is selected so that microflows of maximum intensity, but without upset to cavitation, are formed in the liquid. This leads to interesting effects. If a suspension consisting of solid particles of different sizes is sounded by such a field, they will be separated into fractions. Particles of the same size will uniformly distribute in the liquid volume and, the more so, adhere a property of staying suspended much longer, than they would do without ultrasonic treatment. As for emulsions, the ultrasonic treatment result strongly depends on its life period and duration of ultrasound action. This may cause either dispersion on one liquid into another or, vice versa, coagulation with subsequent separation of liquids.

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