Electrolytic reduction recovery method of metal ions in organic solvent

摘要

PROBLEM TO BE SOLVED: To develop a method for separating and recovering only a target metal from an acid solution, simplifying the work by eliminating the back extraction solution to be used, and recovering metal ions in the organic phase as a metal having higher purity. thing. As an example, after extracting palladium in an organic solvent (acetophenone, dichloroethane, octanol) using MIDOA as an extractant into an organic phase, the supporting electrolyte is dissolved, electrolyzed at an overvoltage of -2.5 V, and applied to the electrode surface. Precipitate as metal and recover. [Selection diagram] Fig. 1