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Title: Ceramicrete stabilization of U-and Pu-bearing materials

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 MgF.sub.2; alumina is added in an amount sufficient to absorb substantially all hydrocarbon liquid present, after which a binder including MgO and KH.sub.2PO.sub.4 is 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 KH.sub.2PO.sub.4 and 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.

Inventors:
 [1];  [2];  [3]
  1. Naperville, IL
  2. Evergreen, CO
  3. Thornton, CO
Issue Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
919888
Patent Number(s):
7294291
Application Number:
10/782,278
Assignee:
UChicago Argonne, LLC (Chicago, IL)
Patent Classifications (CPCs):
C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
G - PHYSICS G21 - NUCLEAR PHYSICS G21F - PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

Wagh, Arun S, Maloney, M David, and Thompson, Gary H. Ceramicrete stabilization of U-and Pu-bearing materials. United States: N. p., 2007. Web.
Wagh, Arun S, Maloney, M David, & Thompson, Gary H. Ceramicrete stabilization of U-and Pu-bearing materials. United States.
Wagh, Arun S, Maloney, M David, and Thompson, Gary H. Tue . "Ceramicrete stabilization of U-and Pu-bearing materials". United States. https://www.osti.gov/servlets/purl/919888.
@article{osti_919888,
title = {Ceramicrete stabilization of U-and Pu-bearing materials},
author = {Wagh, Arun S and Maloney, M David and Thompson, Gary H},
abstractNote = {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 MgF.sub.2; alumina is added in an amount sufficient to absorb substantially all hydrocarbon liquid present, after which a binder including MgO and KH.sub.2PO.sub.4 is 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 KH.sub.2PO.sub.4 and 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2007},
month = {11}
}

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