METHOD OF RECOVERING RUTHENIUM

摘要

PROBLEM TO BE SOLVED: To recover ruthenium at a high recovery rate even from a mixture low in ruthenium content.SOLUTION: A method of recovering ruthenium from a mixed solution containing ruthenium of not more than 1.0 g/l includes the tellurium addition process of adding a tellurium compound to a solution containing the ruthenium, and the ruthenium recovery process of recovering Ru after performing reduction treatment on the obtained mixed solution.