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AssigneeNuclear Fuel Industries, Ltd.
InventorMasashi Takahashi
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The object of the present invention is to provide a feedstock liquid, from which fuel kernels with good quality can be produced, and a method of preparing the feedstock liquid. The present invention provides a feedstock liquid with a viscosity from 4.0×10−2 to 6.5×10−2 Pa·s at 15° C., for the production of ammonium diuranate particles. The present invention also provides a method of preparing a feedstock liquid used for the production of ammonium diuranate particles, which includes mixing a uranyl nitrate solution and tetrahydrofurfuryl alcohol to produce a uranyl nitrate mixture, dissolving polyvinyl alcohol in water to produce an aqueous polyvinyl alcohol solution, mixing the aqueous polyvinyl alcohol solution with tetrahydrofurfuryl alcohol to produce a polyvinyl alcohol solution, and mixing the uranyl nitrate mixture with the polyvinyl alcohol solution.
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A method of preparing a feedstock liquid used for production of ammonium diuranate particles, which comprises mixing a uranyl nitrate solution and tetrahydrofurfuryl alcohol to produce a uranyl nitrate mixture, dissolving polyvinyl alcohol in water to produce an aqueous polyvinyl alcohol solution, mixing the aqueous polyvinyl alcohol solution with tetrahydrofurfuryl alcohol to produce a polyvinyl alcohol solution, mixing the uranyl nitrate mixture with the polyvinyl alcohol solution, and adjusting a viscosity of the mixed so that the feedstock liquid has a viscosity from 4.0×10−2 to 6.5×10−2 Pa·s at 15° C.
A method of preparing a feedstock liquid for the production of ammonium diuranate particles, the feedstock liquid including uranyl nitrate, an aqueous polyvinyl alcohol solution, and tetrahydrofurfuryl alcohol, wherein the polyvinyl alcohol is weighed when it is dry.
A method of preparing a polyvinyl alcohol solution used in preparing a feedstock liquid for production of ammonium diuranate particles, which comprises mixing polyvinyl alcohol and water to prepare from 6 to 9 mass % of an aqueous polyvinyl alcohol solution, and mixing the aqueous polyvinyl alcohol solution with tetrahydrofurfuryl alcohol.
Dependencies are inferred from the claim text.