| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for recovering an inorganic iodide, by which the inorganic iodide can be easily recovered in a high concentration from a mixed inorganic salt aqueous solution containing the inorganic iodide without necessitating specific equipment, and to obtain an objective substance at a low cost by recycling the recovered inorganic iodide in an iodine ion-removing reaction. SOLUTION: The method for recovering the inorganic iodide is characterized by adding an organic solvent to the mixed inorganic salt aqueous solution containing the inorganic iodide and separating the inorganic iodide. Further, a provided method comprises subjecting a raw material (11) containing an iodinated compound to the iodine ion-removing reaction, separating a mixed inorganic salt (13) by an appropriate operation (12), adding an organic solvent, concentrating (17) an organic solvent layer (15), separating an inorganic iodide (18), reacting an oxidant and a reactant (24) to be reacted or directly reacting the reactant (24) to be reacted to obtain the iodinated compound (21), and using the obtained iodinated compound (21) as the iodinated compound in the raw material (11). COPYRIGHT: (C)2006,JPO&NCIPI
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