ქიმიის ტერმინთა განმარტებითი ლექსიკონი

Extraction in which a water-immiscible extraction solvent is continuously percolated through an aqueous solution and returned to the extraction solvent reservoir.

Note 1: Typically, a fixed volume of extraction solvent is recycled through the aqueous sample solution by distillation and condensation, and dripped into the sample solution. A siphon mechanism allows continuous recovery of the extraction solvent based on its relative density.

Note 2: A typical apparatus is shown in Figure below.

Note 3: Continuous liquid–liquid extraction techniques are used when the sample volume is large, the distribution constant is small, or the rate of extraction is slow