Patent ID: 7915473
Filing Date: 2011-03-29
Classification: G21F

Abstract:
1. A radionuclide containment composition for containing a radioactive material, the radionuclide containment composition comprising a mixture of a clay mineral and water, the mixture being refined by filtering the mixture with sieves to remove coarse material prior to its application on the radioactive material, and the clay mineral including at least about 95% montmorillonite particles, with the remaining percentage including silica particles, wherein the montmorillonite particles comprise: a. about 50% to about 75% foliated lamellar aggregates; b. about 10% to about 30% subhedral platelets and compact subhedral lamellar aggregates; and c. about 5% to about 10% subhedral lamellar aggregates; and wherein an aperture size of the sieves ranges from 300 μm to <38 μm.