Patent ID: 9011698
Filing Date: 2015-04-21
Classification: B01J,Y10S

Abstract:
1. A method for sonicating liquids with low-frequency high-energy ultrasound comprising a low-frequency high-energy ultrasound system comprising at least one sonotrode which projects into a reactor vessel through which the liquid passes via at least one inlet orifice and at least one outlet orifice, the method comprising: generating, in a first region adjacent to the oscillation-transducing sonotrode surface within the reactor vessel, a pressure resulting in a pressure/amplitude combination above a pressure-amplitude characteristic line, and maintaining, in a second region adjacent to the first region in the reactor vessel, a pressure resulting in a pressure/amplitude combination below the pressure-amplitude characteristic line, wherein for the pressure/amplitude combination above the pressure-amplitude characteristic line, cavitation is reduced compared to the pressure/amplitude combination below the pressure-amplitude characteristic line, or no cavitation occurs; the oscillation-transducing sonotrode surface oscillates in an angle between 5 degrees and 30 degrees to a cone inside the reactor vessel, the result of this being that the cross-sectional surface of the reactor vessel along a distance from the sonotrode surface in the direction of the flow of the liquid increases the vibration amplitude of the ultrasound injection.