| 摘要 |
<p>PURPOSE:To provide a method for recovering a noble metal in which the noble metal is electrochemically eluted from catalysts, etc., contg. the noble metal and thereafter electrochemically recovered in a form of metal or solution. CONSTITUTION:This method for recovering a noble metal is performed as follows. The noble metal ingredient is eluted by electrolyzing granules such as catalysts contg. the noble metal in the anode chamber of the electrolytic cell using an acid as the anolyte. Thereafter the resulting solution is subjected to electrolysis in the cathode chamber of a fluidized bed electrolyzer contg. cathode particles to deposit the noble metal such as platinum, palladium, rhodium on the cathode particles and to recover the noble metal. This method enables the recovery of noble metals without using any oxidizing acid, the disposal of waste gas or solution of which is very complex.</p> |
