Superabsorbing gel for actinide, lanthanide, and fission product decontamination
    10.
    发明授权
    Superabsorbing gel for actinide, lanthanide, and fission product decontamination 有权
    超吸收凝胶用于锕系元素,镧系元素和裂变产物去污

    公开(公告)号:US09359582B2

    公开(公告)日:2016-06-07

    申请号:US14380482

    申请日:2013-02-28

    CPC classification number: C11D1/008 G21F9/002

    Abstract: 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.

    Abstract translation: 本发明提供一种用于从被污染的多孔表面除去锕系离子,镧系元素离子,裂变产物离子或其组合的水性凝胶组合物。 组合物包含包含凝胶形成交联聚合物和线性聚合物的聚合物混合物。 线性聚合物的存在浓度小于交联聚合物的浓度。 聚合物混合物与包含约0.1至约3重量%(wt%)多齿有机酸螯合剂和约0.02至约0.6摩尔(M)碳酸盐的水溶液至少约95%水合, 形成凝胶。 当应用于被锕系离子,镧系元素离子和/或其他裂变产物离子污染的多孔表面时,水性凝胶从表面吸收污染的离子。

Patent Agency Ranking