Method of eluting gold and silver absorbed on activated carbon and method of recovering gold and silver using the same

摘要

P1 035-AU2(PCT-JP2013-052265) Gold and silver adsorbed on activated carbon are efficiently eluted. The method of eluting gold and silver adsorbed on activated carbon, the method comprises: eluting gold and silver on activated carbon, on which at least the gold and silver are adsorbed, by using an aqueous thiosulfate solution that is maintained at less than pH 7.