EXTRACTANT WITH HIGH SELECTIVITY OF GOLD, EXTRACTION METHOD OR RECOVERY METHOD OF GOLD USING THE EXTRACTANT

摘要

PROBLEM TO BE SOLVED: To provide an extraction method and a recovery method capable of extracting gold with one step and high selectivity and without needs for a specific post treatment process of a water phase using a back extraction.SOLUTION: The invention relates to an extractant of gold containing a compound represented by the formula (I): ROH, where Ris a linear or branched alkyl group or alkenyl group having 6 to 20 carbon atoms or a compound represented by the formula (II):ROH(OH), where Ris a linear or branched bivalent saturated hydrocarbon group having 4 to 13 carbon atoms as an essential component.SELECTED DRAWING: Figure 7