METHOD FOR RECOVERING RUTHENIUM

摘要

PROBLEM TO BE SOLVED: To achieve the recovery of ruthenium in a high recovery rate even from a mixture in which a ruthenium content is low.SOLUTION: A method for recovering ruthenium from a mixed solution including ruthenium of ≤1.0 g/L includes: a tellurium addition step of adding sodium tellurate to the ruthenium-including solution; and a ruthenium recovery step of subjecting the obtained mixed solution to reduction treatment and thereafter recovering Ru.