Scavenger supports and the use thereof in a process for the extraction of metals
    32.
    发明授权
    Scavenger supports and the use thereof in a process for the extraction of metals 失效
    清除剂支持及其在金属萃取过程中的应用

    公开(公告)号:US08652335B2

    公开(公告)日:2014-02-18

    申请号:US13462288

    申请日:2012-05-02

    Abstract: A scavenger support and a process for removing metal from solution by contacting the solution with the scavenger support, whereby the scavenger support binds to at least some of the metal in solution thereby decreasing the amount of metal in solution. The scavenger support is a functionalised support having pendant groups selected from 1,3-ketoesters or 1,3-ketoamides or mixtures thereof having a structure according to formula 1, wherein a number of the pendant groups are reacted with an amine: wherein R1 is an optionally substituted hydrocarbyl, perhalogenated hydrocarbyl or heterocyclyl group; X is O or NR2, wherein the free valence of O or NR2 is bonded to a support optionally via a linker; and R2 is hydrogen, an optionally substituted hydrocarbyl, or heterocyclyl group.

    Abstract translation: 清除剂载体和通过使溶液与清除剂载体接触来从溶液中除去金属的方法,由此清除剂载体与溶液中的至少一些金属结合,从而减少溶液中金属的量。 清除剂载体是具有选自1,3-酮酯或1,3-酮酰胺或其混合物的侧基的官能化载体,其具有根据式1的结构,其中多个侧基与胺反应:其中R1为 任选取代的烃基,全卤代烃基或杂环基; X是O或NR 2,其中O或NR 2的游离价可任意地通过连接基键合到支持物上; 和R 2是氢,任选取代的烃基或杂环基。

    Method for separating radioactive copper using chelating-ion exchange resin
    33.
    发明授权
    Method for separating radioactive copper using chelating-ion exchange resin 失效
    使用螯合离子交换树脂分离放射性铜的方法

    公开(公告)号:US08647595B2

    公开(公告)日:2014-02-11

    申请号:US13001861

    申请日:2009-06-17

    Abstract: Disclosed is a method for rapidly separating radioactive copper from nickel that contains radioactive copper and radioactive cobalt, which comprises dissolving nickel that contains radioactive copper and radioactive cobalt in an acid solution and leading it to pass through a chelating-ion exchange resin-filled column to thereby make nickel, radioactive copper and radioactive cobalt held by the chelating-ion exchange resin, and then leading an acid solution to pass through the chelating-ion exchange resin-filled column to elute nickel and radioactive cobalt, and thereafter leading an acid solution having a higher concentration than that of the previous acid solution to pass through the chelating-ion exchange resin-filled column after nickel and radioactive elution therefrom to thereby elute radioactive copper.

    Abstract translation: 公开了一种快速分离含有放射性铜和放射性钴的镍的放射性铜的方法,其包括将含有放射性铜和放射性钴的镍溶解在酸性溶液中,并使其通过螯合离子交换树脂填充柱 从而使镍,放射性铜和由螯合离子交换树脂保持的放射性钴,然后引导酸溶液通过螯合离子交换树脂填充柱以洗脱镍和放射性钴,然后引入具有 比以前的酸溶液的浓度高,在镍之后通过螯合离子交换树脂填充的柱,并从其中进行放射性洗脱,从而洗脱放射性铜。

    Chelating compound and the corresponding acid
    39.
    发明授权
    Chelating compound and the corresponding acid 有权
    螯合化合物和相应的酸

    公开(公告)号:US08420757B1

    公开(公告)日:2013-04-16

    申请号:US13065136

    申请日:2011-03-15

    Abstract: A polymer comprising a polymer backbone. The polymer backbone has a plurality of carbon atoms. There are two lipophobic carboxylate groups or carboxylic acid groups per repeating unit being coupled to separate carbon atoms of the backbone. The polymer may be used to recover metals by chelation and then burning away the polymer.

    Abstract translation: 包含聚合物主链的聚合物。 聚合物主链具有多个碳原子。 每个重复单元有两个疏油羧酸酯基团或羧酸基团与主链的分开的碳原子偶联。 聚合物可用于通过螯合回收金属,然后燃烧掉聚合物。

    FIBER-BASED ADSORBENTS HAVING HIGH ADSORPTION CAPACITIES FOR RECOVERING DISSOLVED METALS AND METHODS THEREOF
    40.
    发明申请
    FIBER-BASED ADSORBENTS HAVING HIGH ADSORPTION CAPACITIES FOR RECOVERING DISSOLVED METALS AND METHODS THEREOF 有权
    具有高吸附能力的基于纤维的吸附体,用于回收溶解的金属及其方法

    公开(公告)号:US20130071659A1

    公开(公告)日:2013-03-21

    申请号:US13553288

    申请日:2012-07-19

    Abstract: A fiber-based adsorbent and a related method of manufacture are provided. The fiber-based adsorbent includes polymer fibers with grafted side chains and an increased surface area per unit weight over known fibers to increase the adsorption of dissolved metals, for example uranium, from aqueous solutions. The polymer fibers include a circular morphology in some embodiments, having a mean diameter of less than 15 microns, optionally less than about 1 micron. In other embodiments, the polymer fibers include a non-circular morphology, optionally defining multiple gear-shaped, winged-shaped or lobe-shaped projections along the length of the polymer fibers. A method for forming the fiber-based adsorbents includes irradiating high surface area polymer fibers, grafting with polymerizable reactive monomers, reacting the grafted fibers with hydroxylamine, and conditioning with an alkaline solution. High surface area fiber-based adsorbents formed according to the present method demonstrated a significantly improved uranium adsorption capacity per unit weight over existing adsorbents.

    Abstract translation: 提供了一种纤维基吸附剂和相关的制造方法。 纤维基吸附剂包括具有接枝侧链的聚合物纤维,并且与已知纤维相比增加了每单位重量的表面积,以从水溶液中增加溶解金属例如铀的吸附。 聚合物纤维在一些实施方案中包括圆形形态,其平均直径小于15微米,任选地小于约1微米。 在其它实施方案中,聚合物纤维包括非圆形形态,任选地限定沿着聚合物纤维长度的多个齿轮形,翼状或凸起状的突起。 形成纤维类吸附剂的方法包括照射高表面积聚合物纤维,与可聚合反应性单体接枝,使接枝纤维与羟胺反应,并用碱性溶液调理。 根据本方法形成的高表面积纤维基吸附剂显示出比现有吸附剂显着提高每单位重量的铀吸附能力。

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