Liquid-liquid extraction apparatus and liquid-liquid extraction method

摘要

A liquid-liquid extraction apparatus and a liquid-liquid extraction method capable of processing a large amount of a solution to be extracted while having a simple structure that does not require a drive unit. A liquid-liquid extraction apparatus for extracting a substance from one liquid to another liquid by bringing two liquids that form an interface into contact with each other, and a plurality of liquids for passing two liquids S and E An extraction section 10 having an extraction flow path 10h, a liquid supply section 13 for supplying a liquid to the extraction section 10, and a liquid discharge section 14 for discharging the liquids S and E from the extraction section 10. The extraction unit 10 is formed so that the cross-sectional area of the extraction flow path 10h changes along the flow path direction. Since the cross-sectional area of the extraction flow path 10h is changed, the area of the interface between the two liquids flowing in the extraction flow path 10h can be changed, and convection CV can be generated in each liquid. For this reason, extraction efficiency between both can be improved only by letting 2 liquids S and E pass. [Selection] Figure 1