Method and system for reducing volume of raw material liquid

Abstract

A method for reducing the volume of a raw material liquid, the raw material liquid containing at least a valuable and a first solvent, wherein the raw material liquid further contains an accessory component other than the valuable and the first solvent, or contains a mixed solvent including the first solvent and a second solvent as a solvent, and the method for reducing the volume of the raw material liquid is performed by combining a first process in which the first solvent is removed from the raw material liquid and a second process in which the concentration of the second solvent or the accessory component is adjusted from the raw material liquid using a dialysis method with a dialysis membrane.

Dependencies are inferred from the claim text.