To provide a method for economically recovering a noble metal from noble metal-containing waste or the like with high efficiency.
Disclosed is a method for recovering a noble metal where a noble metal-containing material is cleaned with molten metal tin, so as to form a tin-noble metal alloy, thus the tin-noble metal alloy is separated and recovered. Preferably, the remaining noble metal-containing material is heated together with a tin compound, a reducing agent and flux, the noble metal is eluted by the reduction melting, further, the noble metal is absorbed into the produced metal tin melted layer, the melted metal layer comprising the noble metal is separated from an oxide layer, so as to be recovered, the recovered tin-noble metal alloy is electrolytically refined, so as to recover the noble metal, and further, the reduction melting is performed in the two stages of strong reduction and weak reduction.
IWAMI KOJI
HARADA TAKESHI
ABE SHINJI
MITSUBISHI CORP
FURUYA KINZOKU KK
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