PROCESS PLATFORM FOR ACOUSTOPHORETIC MULTICOMPONENT SEPARATION Russian patent published in 2017 - IPC B01D43/00 B06B1/00 C02F1/36 

FIELD: chemistry.

SUBSTANCE: invention is intended for separation of impurities from fluid. Method of separating impurities from a host fluid includes steps of creating a flow chamber having a source of acoustic energy, and on opposite side of flow chamber an acoustic energy reflector, facilitating flow of host fluid through flow chamber, applying source of acoustic energy to host fluid in order to generate a three-dimensional ultrasound standing wave, wherein three-dimensional ultrasound standing wave leads to formation of acoustic radiation force, having an axial and a transverse component, having one order of magnitude. Device for separation of impurities from a host fluid comprises a flow chamber with an inlet and an outlet, through which flows mixture of host fluid and at least one of second fluid and particles, ultrasonic transducer or a plurality of ultrasonic transducers on wall of flow chamber, reflector arranged on wall on side of flow chamber, opposite transducer. Each transducer includes a ceramic crystal, which forms side of transducer. Transducer is excited by an oscillating, periodic or pulsed voltage signal at ultrasound resonance frequency. Crystal excites transducer for oscillation at irregular shift mode to generate a three-dimensional standing wave in flow chamber.

EFFECT: technical result is higher capture force for acoustophoresis.

27 cl, 30 dwg, 3 tbl