Ceramicrete stabilization of U-and Pu-bearing materials

Details Ceramicrete stabilization of U-and Pu-bearing materials Ceramicrete stabilization of U-and Pu-bearing materials

2007-11-13

2007-11-13

Langel, Wayne A. (Department: 1754)

Compositions

Radioactive compositions

C423S002000, C423S003000, C423S250000, C423S251000, C423S253000, C423S490000, C588S010000

Reexamination Certificate

active

10782278

ABSTRACT:
A method of stabilizing nuclear material is disclosed. Oxides or halides of actinides and/or transuranics (TRUs) and/or hydrocarbons and/or acids contaminated with actinides and/or TRUs are treated by adjusting the pH of the nuclear material to not less than about 5 and adding sufficient MgO to convert fluorides present to MgF2; alumina is added in an amount sufficient to absorb substantially all hydrocarbon liquid present, after which a binder including MgO and KH2PO4is added to the treated nuclear material to form a slurry. Additional MgO may be added. A crystalline radioactive material is also disclosed having a binder of the reaction product of calcined MgO and KH2PO4and a radioactive material of the oxides and/or halides of actinides and/or transuranics (TRUs). Acids contaminated with actinides and/or TRUs, and/or actinides and/or TRUs with or without oils and/or greases may be encapsulated and stabilized by the binder.

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