Reduction of encrustation of crystallization processes
AssigneeBASF SE
InventorsUdo Setzer, Bernhard Otto, Siegfried Bechtel, Richard van Gelder, Thomas Fetzer, Joachim Borgwart, Matthias Rauls, Christoph Gahn
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Abstract
In a process and an apparatus for avoiding encrustations in reactors or crystallizers (13), such as industrial crystallizers for suspensions (11), points of incidence (4) for the excitation of ultrasonic oscillations by sonotrodes (3) which are connected to electromechanical converters (2) are provided on the walls (6, 21) and on the base (7) of the crystallizer (13). The ultrasonic frequency is generated at high-frequency generators (1).
Claims14
A process for avoiding encrustation in reactors or crystalizers, such as industrial crystallizers for solutions and suspensions, points of incidence for the excitation of ultrasonic oscillations by sonotrodes which are connected to electromechanical converters and whose ultrasonic frequency is generated at a high-frequency generator being provided on the walls and on the base of the containers, wherein ultrasonic oscillations are excited in a region around a liquid or a suspension level within a container.
An apparatus for avoiding encrustation on crystallizers, such as industrial crystallizers for suspensions, points of incidence for the excitation of ultrasonic oscillations by sonotrodes which are connected to electromechanical converters being provided on the walls and on the base of the container, and the ultrasonic frequency being predeterminable at high-frequency generators, wherein sonotrodes surrounding the crystallizer in an annular manner are arranged in a region between the suspension level in the crystallizer and the zone of influence of a cooling medium.
Dependencies are inferred from the claim text.