Treatment of organic materials
    1.
    发明授权
    Treatment of organic materials 失效
    有机材料的处理

    公开(公告)号:US06521809B1

    公开(公告)日:2003-02-18

    申请号:US09530810

    申请日:2001-02-05

    IPC分类号: G21F900

    CPC分类号: G21F9/10 G21F9/06

    摘要: Processes for the treatment of solutions used for the decontamination of radioactively contaminated surfaces wherein the solution contains radioactive metal ions and organic complexing agents are described herein. The processes include treating the solutions with a reagent suitable for the destruction of the complexing agent and contains a metal capable of existing in more than one oxidation state, and raising the pH of the resultant solution to a level at which the metal of the reagent precipitates or flocs out of the solution. Processes in which the contaminated solutions are treated with electromagnetic radiation, treated with UV or visible radiation, and treated at an ambient temperature are also described herein.

    摘要翻译: 本文描述了用于处理用于对放射性污染表面进行去污染的溶液的方法,其中溶液含有放射性金属离子和有机络合剂。 这些方法包括用适于破坏络合剂的试剂处理溶液,并含有能够存在于多于一种氧化态的金属,并将所得溶液的pH提高到试剂金属析出的水平 或从解决方案中絮凝。 在这里还描述了用电磁辐射处理污染的溶液,用UV或可见光辐射处理并在环境温度下处理的方法。

    Decontamination of metal
    2.
    发明授权
    Decontamination of metal 失效
    金属去污

    公开(公告)号:US06169221A

    公开(公告)日:2001-01-02

    申请号:US09194461

    申请日:1999-06-28

    IPC分类号: G21F900

    CPC分类号: G21F9/004

    摘要: A process for the decontamination of radioactively contaminated metal which comprises contacting the metal with a decontamination reagent solution containing an organic acid and an oxidising agent, allowing said solution to react with the contaminated metal at a pH of up to 4.5, treating the resulting solution to cause substantially complete precipitation of dissolved metal together with radionuclides and separating precipitated material, containing radioactive contaminants, from said solution.

    摘要翻译: 一种用于对放射性污染的金属进行去污染的方法,其包括使金属与含有机酸和氧化剂的去污试剂溶液接触,允许所述溶液在高达4.5的pH下与受污染的金属反应,将所得溶液处理 使溶解的金属与放射性核素完全沉淀,并从所述溶液中分离含有放射性污染物的沉淀物质。