Patent ID: 6515030
Filing Date: 2003-02-04
Classification: B01F,B01J,Y10S

Abstract:
A method for determining process parameters of a production scale flow cell device, which comprises the steps of:a) effecting an emulsification to prepare a dispersed mixture by ultrasound using a device in a batchwise laboratory scale, and determining process parameters therefor; and b) effecting an emulsification to prepare a dispersed mixture by ultrasound in a continuous production scale with a flow cell by transferring directly there to the process parameters determined in step a), provided that a specific volume, dv/dt, is chosen for the flow cell which corresponds to an equivalent volume flow, dveq/dt=vt, where v is a volume of a reaction chamber of a device, on a laboratory scale, and t is a sonication period; wherein said device comprises: a) a housing; and b) a reaction chamber within the housing and at least one sonotrode having a free emitting surface which is directly in effective connection with the reaction chamber and whose end remote from the free emitting surface is coupled to an ultrasonic transducer, wherein the sonotrode is designed as a rod-shaped, axially emitting longitudinal oscillator with said emitting surface corresponding essentially to the surface of the reaction chamber, and wherein the reaction chamber depth which is essentially vertical with respect to the emitting surface is lower than a maximum effective depth of the sonotrode.