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    Dehydration of plutonium or neptunium trichloride hydrate
    1.
    发明授权
    Dehydration of plutonium or neptunium trichloride hydrate 失效
    钚或钚三水合物脱水

    公开(公告)号：US5098682A

    公开(公告)日：1992-03-24

    申请号：US755280

    申请日：1991-09-05

    申请人： Jerry Foropoulos, Jr. ,  Larry R. Avens ,  Eddie A. Trujillo

    发明人： Jerry Foropoulos, Jr. ,  Larry R. Avens ,  Eddie A. Trujillo

    IPC分类号： C01G56/00

    CPC分类号： C01G56/006 ,  C01G56/008

    摘要： A process of preparing anhydrous actinide metal trichlorides of plutonium or neptunium by reacting an aqueous solution of an actinide metal trichloride selected from the group consisting of plutonium trichloride or neptunium trichloride with a reducing agent capable of converting the actinide metal from an oxidation state of +4 to +3 in a resultant solution, evaporating essentially all the solvent from the resultant solution to yield an actinide trichloride hydrate material, dehydrating the actinide trichloride hydrate material by heating the material in admixture with excess thionyl chloride, and recovering anhydrous actinide trichloride is provided.

    摘要翻译： 通过使选自三氯化钚或三氯化ium的锕系金属三氯化物的水溶液与能够将锕系金属从+4的氧化态转化的还原剂反应制备钚或ium的无水锕系金属三氯化物的方法 在所得溶液中+3，从所得溶液中蒸发基本上所有的溶剂，得到三氯化锕水合物材料，通过加热与过量的亚硫酰氯混合的材料，并回收无水三氯化锑，使三氯化锕水合物材料脱水。

    Method for purifying plutonium hexafluoride
    3.
    发明授权
    Method for purifying plutonium hexafluoride 失效
    净化六氟化钚的方法

    公开(公告)号：US4172114A

    公开(公告)日：1979-10-23

    申请号：US827257

    申请日：1977-08-24

    申请人： Takeshi Tsujino ,  Mitsuhiro Nishimura ,  Kazunobu Yamazaki ,  Susumu Sugikawa

    发明人： Takeshi Tsujino ,  Mitsuhiro Nishimura ,  Kazunobu Yamazaki ,  Susumu Sugikawa

    IPC分类号： B01D15/00 ,  B01D53/02 ,  B01J20/04 ,  C01G56/00 ,  G21C19/44

    CPC分类号： C01G56/006 ,  B01D53/02

    摘要： An effective method for purifying plutonium hexafluoride for the reprocessing of the spent nuclear fuel or for the recovery of fuel plutonium from the scrap by fluoride-volatility with high decontamination factors is presented using a selective adsorption of the fission products fluorides by letting the gas mixture flow through a layer of an adsorbent consisting of one or more of the specified compounds selected from hexafluoro sodium aluminate, zinc fluoride, nickel fluoride and ferric fluoride at an elevated temperature. The principle of the purification method is based on the fact that the fluorides of the fission products are easily adsorbed by the adsorbent but little plutonium hexafluoride is adsorbed. The fluorides of the fission products are easily removed from the adsorbent by heating and the recycling use of the adsorbent is possible.

    摘要翻译： 提出了一种用于净化六氟化钚用于废核燃料后处理或通过具有高去污因子的氟化物挥发性从废料中回收燃料钚的有效方法，其通过使气体混合物流动而选择性吸附裂变产物氟化物 通过在一个升高的温度下由一种或多种选自六氟铝酸钠，氟化锌，氟化镍和氟化铁的指定化合物组成的吸附剂层。 纯化方法的原理是基于裂变产物的氟化物容易被吸附剂吸附而吸附六氟化钚的事实。 裂变产物的氟化物通过加热容易地从吸附剂中除去，并且吸附剂的再循环利用是可能的。

    Method and apparatus for providing negative ions of actinide-metal hexafluorides
    4.
    发明授权
    Method and apparatus for providing negative ions of actinide-metal hexafluorides 失效
    提供锕系金属六氟化物负离子的方法和装置

    公开(公告)号：US4105746A

    公开(公告)日：1978-08-08

    申请号：US766278

    申请日：1977-02-07

    申请人： Robert N. Compton ,  Paul W. Reinhardt ,  William R. Garrett

    发明人： Robert N. Compton ,  Paul W. Reinhardt ,  William R. Garrett

    IPC分类号： C01G43/06 ,  C01G56/00

    CPC分类号： C01G56/008 ,  C01G43/06 ,  C01G56/006 ,  C01G56/009 ,  Y10S422/906

    摘要： This invention relates to a novel method and a novel generator, or source, for providing gaseous negative ions of selected metal hexafluorides. The method is summarized as follows: in an evacuated zone, reacting gaseous fluorine with an actinide-metal body selected from the group consisting of uranium, plutonium, neptunium, and americium to convert at least part of the metal to the hexafluoride state, thus producing gaseous negatively charged metal-hexafluoride ions in the evacuated zone, and applying an electric field to the zone to remove the ions therefrom. The ion source comprises a chamber defining a reaction zone; means for evacuating the zone; an actinide-metal body in the zone, the metal being uranium, plutonium, neptunium, or americium; means for contacting the body with gaseous fluorine to convert at least a part thereof to the hexafluoride state; and means for applying an electric field to the evacuated zone to extract gaseous, negatively charged metal-hexafluoride ions therefrom. The invention provides unique advantages over conventional surface-ionization techniques for producing such ions.

    摘要翻译： 本发明涉及一种用于提供所选择的六氟化金属的气体负离子的新颖方法和新型发生器或源。 该方法总结如下：在抽空区域中，使氟气与选自铀，钚，ium和amer的锕系金属体反应，将至少部分金属转化为六氟化物状态，从而产生 气体带负电荷的金属六氟化物离子，并且向该区域施加电场以除去其中的离子。 离子源包括限定反应区的室; 疏散区域的手段; 该区域中的锕系金属体，金属为铀，钚，ium或;; 用于使身体与气态氟接触以将其至少一部分转化为六氟化物状态的装置; 以及用于将电场施加到所述抽空区域以从其中提取带负电荷的金属六氟化物离子的装置。 本发明提供了与用于生产这种离子的常规表面电离技术相比的独特优点。

    Systems and methods for efficiently preparing plutonium-238 with high isotopic purity
    10.
    发明授权
    Systems and methods for efficiently preparing plutonium-238 with high isotopic purity 有权
    有效制备高同位素纯度的钚-238的系统和方法

    公开(公告)号：US09196389B2

    公开(公告)日：2015-11-24

    申请号：US13675850

    申请日：2012-11-13

    申请人： GENERAL ATOMICS

    发明人： Timothy Creston Bertch ,  Lloyd Chauncey Brown

    IPC分类号： G21G1/02 ,  C22B60/04 ,  G21G1/00 ,  C01G56/00

    CPC分类号： G21G1/001 ,  C01G56/006 ,  C22B60/04 ,  G21G1/02

    摘要： A method for preparing plutonium-238 (Pu-238) includes using a nuclear reactor in irradiating a liquid containing a neptunium-237 (Np-237) based compound with neutrons to convert a portion of the Np-237 based compound to a Np-238 based compound; retaining the liquid containing the resulting mixture for a sufficient amount of time for the Np-238 based compound to at least partially convert to a Pu-238 based compound; and separating the Pu-238 based compound from the neptunium based compounds using fractional distillation or a chemical separation method.

    摘要翻译： 制备钚-238（Pu-238）的方法包括使用核反应堆将含有ium -237（Np-237）的化合物的液体与中子照射，以将Np-237基化合物的一部分转化为Np- 基于238的化合物; 将含有所得混合物的液体保留足够的时间使Np-238基化合物至少部分转化为基于Pu-238的化合物; 并使用分馏或化学分离方法从基于ium的化合物中分离Pu-238基化合物。