TWO-LIQUID COUNTERCURRENT EXTRACTOR AND EXTRACTION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a continuous countercurrent extractor having high efficiency. SOLUTION: A rotating member which can be rotated around a shaft disposed in the direction almost perpendicular to the interface between the fluid to be extracted and an extracting agent and produce a swirling current in the shaft direction by the rotation is arranged in the body of this two-liquid countercurrent extractor where the fluid to be extracted is brought into countercurrent contact with the extracting agent.