| 摘要 |
PROBLEM TO BE SOLVED: To provide a recovering method for separating electrode materials and titanium or a titanium compound mainly from a used or using insoluble metal electrode to recover the base metal to be recycled as it is and the electrode material as precipitate easily recovered with sufficient concentration. SOLUTION: The recovering method of the insoluble electrode is a method of separating and recovering the electrode material and a titanium base material from the insoluble metal electrode formed by covering the surface of the titanium base material with the electrode material containing iridium oxide and/or ruthenium oxide and includes a step [1] for cleaning the surface, a step [2] for applying caustic alkali solution at least on the coating surface of the electrode and spreading, a step [3] for heating and holding at about melting point of caustic alkali to cause reaction and a step [4] for dipping the insoluble metal electrode in an acid. COPYRIGHT: (C)2008,JPO&INPIT
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