| abstract |
Provided is a method for separating and recovering a metal constituent from a member comprising, as the metal constituent, at least tungsten, molybdenum, or vanadium, wherein the method comprises the following: a step in which the member, a first molten material that comprises an alkali metal hydroxide or an alkali earth metal hydroxide, and a second molten material that differs from the first molten material and comprises at least an alkali metal hydroxide, an alkali earth metal hydroxide, an alkali metal salt, or an alkali earth metal salt are mixed to produce a compound; a step in which the compound and water are mixed to produce an extraction liquid of the metal constituent; and a step in which the extraction liquid and solid components are separated. |