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US 2026/0094735 A1Published application
Magnesia cement for the solidification of aqueous waste
AssigneeBattelle Savannah River Alliance, LLC
InventorWILLIAM C. JOLIN
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Abstract
The present invention is directed to a solidified composition and a method of making such solidified composition. The solidified composition may have a lower leachate pH when compared to ordinary Portland cement. The solidified composition may be formed from a slurry comprising magnesium oxide, a salt, and water. Notably, the solidified composition may further comprise one or more actinides. The methods of the present invention are directed to making the aforementioned solidified compositions.
Claims20
A solidified composition comprising:
- magnesium oxide;
- and
- a salt;
- wherein the solidified composition is formed from a slurry, the slurry comprising a first solution, the first solution comprising water, the first solution further comprising one or more actinides, one or more nitrate salts, or both.
1 more element
A solidified composition comprising:
- magnesium oxide, wherein the solidified composition is formed from a slurry, the slurry comprising:
- magnesium oxide, the magnesium oxide being present in the slurry in an amount of about 5 wt. % or more;
- a salt, the salt being present in the slurry in an amount of about 1 wt. % or more;
- and
- water, the water being present in the slurry in an amount of about 10 wt. % or more;
- wherein the solidified composition has a leachate pH from about 7 to about 11.
3 more elements
A solidified composition comprising:
- magnesium oxide, wherein the solidified composition is formed from a slurry, the slurry comprising:
- light burned magnesium oxide;
- and
- dead burned magnesium oxide, the light burned magnesium oxide and the dead burned magnesium oxide being present in the slurry in a weight ratio from about 1:20 to about 10:1;
- wherein the solidified composition comprises magnesium hydroxide and has a density greater than about 0.5 g/mL.
2 more elements
Dependencies are inferred from the claim text.