发明名称 |
SUPERABSORBING GEL FOR ACTINIDE, LANTHANIDE, AND FISSION PRODUCT DECONTAMINATION |
摘要 |
The present invention provides an aqueous gel composition for removing actinide ions, lanthanide ions, fission product ions, or a combination thereof from a porous surface contaminated therewith. The composition comprises a polymer mixture comprising a gel forming cross-linked polymer and a linear polymer. The linear polymer is present at a concentration that is less than the concentration of the cross-linked polymer. The polymer mixture is at least about 95% hydrated with an aqueous solution comprising about 0.1 to about 3 percent by weight (wt %) of a multi-dentate organic acid chelating agent, and about 0.02 to about 0.6 molar (M) carbonate salt, to form a gel. When applied to a porous surface contaminated with actinide ions, lanthanide ions, and/or other fission product ions, the aqueous gel absorbs contaminating ions from the surface. |
申请公布号 |
US2015038387(A1) |
申请公布日期 |
2015.02.05 |
申请号 |
US201314380482 |
申请日期 |
2013.02.28 |
申请人 |
UCHICAGO ARGONNE, LLC |
发明人 |
Kaminski Michael D.;Mertz Carol J. |
分类号 |
C11D1/00 |
主分类号 |
C11D1/00 |
代理机构 |
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代理人 |
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主权项 |
1. An aqueous gel composition for removing actinide ions, lanthanide ions, fission product ions, or a combination thereof from a porous surface contaminated therewith; the composition comprising a polymer mixture comprising a gel-forming cross-linked polymer and a linear polymer; wherein the linear polymer is present at a concentration that is less than the concentration of the cross-linked polymer; the polymers are anionic, nonionic or a combination thereof, and the polymer mixture is at least about 95% hydrated with an aqueous solution to form a gel; the aqueous solution comprises a molar (M) concentration of about 0.01 M to about 0.5 M of a multi-dentate organic acid chelating agent, and about 0.02 to about 1 M carbonate salt; and the polymer mixture optionally includes at least one particulate sequestering agent. |
地址 |
Chicago IL US |