Patent ID: 8252239

Claim:
A liquid-liquid extraction system comprising: a container adapted to contain a continuous phase and a dispersion phase that are mutually immiscible liquids, and a solute dissolved in at least one of the continuous phase and the dispersion phase; a water tank accommodating therein the container and containing water around the container; an emulsification ultrasonic oscillation source disposed outside the water tank, on a plane substantially parallel with an interface between the continuous phase and the dispersion phase; a separation ultrasonic oscillation source disposed outside the water tank; an ultrasonic-oscillation-source driving circuit configured to drive the emulsification ultrasonic oscillation source and the separation ultrasonic oscillation source; and a control unit configured to control the ultrasonic-oscillation-source driving circuit such that the ultrasonic-oscillation-source driving circuit sequentially drives the emulsification ultrasonic oscillation source and the separation ultrasonic oscillation source.