| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for refiningTc for reducing the residual amounts of a solvent to be used in a refining process, and for improving a yield.SOLUTION: A refining method ofTc includes: a dissolution process of dissolving and pH-adjustingMo/Tc target 10 to obtain an alkaline solution; an anion-exchange column absorption process of introducing the solution to an anion-exchange column 13 to absorbMo andTc; aMo removal process of removing the absorbedMo with the solution; aTc extraction process of extracting the absorbedTc with the solution; aTc solution preparation process of drying and solidifying extract, and adding water to obtain aTc solution; an acid alumina column absorption process of introducing the solution containingTc to an acid alumina column 15 to make the acid alumina column 15 absorbTc; and aTc recovery process of extracting and recoveringTc absorbed by the acid alumina column 15 with a saline solution. |
