PLANT FOR GAS-AND-LIQUID EXTRACTION Russian patent published in 1999 - IPC

FIELD: extraction of biological raw materials by liquefied gases. SUBSTANCE: plant includes extractor, evaporator and condenser connected in closed loop, devices for supply of raw material and extractant, extractant and grist receivers and bubbler mounted in lower portion of extractor and provided with holes in form of nozzles. Bubbler is connected with evaporator through controllable check valve whose construction provides for pulsating delivery of gas phase of extractant. EFFECT: increased productivity due to increased specific power intensity of ultrasonic oscillations generated in extraction mixture. 3 dwg