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US 2019/0156964 A1Published application
Method for producing solidified radioactive waste
AssigneeNippon Chemical Industrial Co., Ltd.
InventorsYutaka Kinose, Shinsuke Miyabe
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AssigneeNippon Chemical Industrial Co., Ltd.
InventorsYutaka Kinose, Shinsuke Miyabe
Estimating the term…
The present invention provides solidified radioactive waste into which a titanium-containing adsorbent having a radioactive element adsorbed thereto is vitrified, the solidified radioactive waste being capable of confining a large amount of the titanium-containing adsorbent having a radioactive element adsorbed thereto, and furthermore elution of the radioactive element from the vitrified waste being suppressed. A method for producing solidified radioactive waste of the present invention is characterized by including heat-melting a mixture that includes a titanium-containing adsorbent having a radioactive element adsorbed thereto, a SiO2 source, and an M2O source (M represents an alkali metal element) to form vitrified waste, and the titanium-containing adsorbent is preferably one or two or more selected from silicotitanate, an alkali nonatitanate, and titanium hydroxide.
A method for producing solidified radioactive waste, comprising heat-melting a mixture that comprises a titanium-containing adsorbent having a radioactive element adsorbed thereto, a SiO2 source, and an M2O source (M represents an alkali metal element) to form vitrified waste.
Dependencies are inferred from the claim text.