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    Uranium Recovery From UF6 Cylinders
    3.
    发明申请
    Uranium Recovery From UF6 Cylinders 有权
    铀回收UF6气瓶

    公开(公告)号：US20160122199A1

    公开(公告)日：2016-05-05

    申请号：US13776785

    申请日：2013-02-26

    申请人： TRANSPORT LOGISTICS INT'L, INC

    发明人： Ronald O. Noe

    IPC分类号： C01G43/01

    CPC分类号： C01G43/01 ,  C01G43/00 ,  C22B60/023 ,  C23G1/02

    摘要： A process for recovering residual uranium from emptied uranium hexafluoride shipping cylinder during cleaning, including rinsing a uranium hexafluoride shipping cylinder with hydrofluoric acid to dissolve a heel of uranium hexafluoride therein to form a mixture of sediment, precipitates and a uranium solution; separating the uranium solution from the sediment and precipitates; mixing sodium hydroxide with the uranium solution to precipitate sodium diuranate; separating the solid sodium diuranate from the sodium fluoride solution formed; re-dissolving the sodium diuranate in sodium carbonate solution to form uranyl carbonate complex solution; and adjusting the pH of uranyl carbonate complex solution further to precipitate uranyl peroxide with the addition of hydrogen peroxide. Sodium fluoride solution produced is further treated to remove fluoride by percolating it through a calcite limestone bed to form calcium fluoride solid.

    摘要翻译： 包括在清洗过程中从排空的六氟化铀运输工具缸中回收残余铀的过程，包括用氢氟酸冲洗六氟化铀运输工具，以溶解其中的六氟化铀，以形成沉淀物，沉淀物和铀溶液的混合物; 从沉淀物中分离铀溶液并沉淀; 将氢氧化钠与铀溶液混合以沉淀二氢化钠; 从形成的氟化钠溶液中分离固体二异氰酸钠; 将溶解在碳酸钠溶液中的阿魏酸钠再溶解形成碳酸铀酰复合溶液; 并通过添加过氧化氢进一步调节碳酸铀酸酯配位体溶液的pH以进一步沉淀二氧化铀过氧化物。 进一步处理生产的氟化钠溶液以通过将其渗透通过方解石石灰石床除去氟化物以形成氟化钙固体。

    METHOD AND DEVICE FOR GENERATING DROPLETS OVER A VARIABLE SPECTRUM OF PARTICLE SIZES
    4.
    发明申请
    METHOD AND DEVICE FOR GENERATING DROPLETS OVER A VARIABLE SPECTRUM OF PARTICLE SIZES 有权
    用于产生粒子尺寸变化谱线的方法和装置

    公开(公告)号：US20140319237A1

    公开(公告)日：2014-10-30

    申请号：US13992605

    申请日：2011-11-29

    申请人： Méryl Brothier ,  Dominique Moulinier

    发明人： Méryl Brothier ,  Dominique Moulinier

    IPC分类号： B05B17/06

    CPC分类号： B05B17/0676 ,  B01J2/04 ,  B01J2/18 ,  B22F1/0096 ,  C01G43/00 ,  C01G43/01 ,  G21C3/62 ,  G21C3/623 ,  Y02E30/38

    摘要： A process for generating droplets with a modulatable droplet size distribution, comprises: making a stream of liquid strike a support with a given relative impact velocity; making said support vibrate at at least one vibration frequency; heating said support to a impact temperature such that the liquid film formed by the impact and made to vibrate is heated to a principal temperature to form in combination what are called principal droplets from said film; and transporting said droplets via a transfer/braking/sorting system to a liquid for precipitating the principal droplets, said transportation being carried out at a transportation temperature, all of these parameters, namely the relative impact velocity, the vibration frequency, the principal temperature and the transportation temperature allowing the droplet size of said formed principal droplets and the velocity of the latter to be modulated. A device allowing the process to be implemented is also provided.

    摘要翻译： 用于产生具有可调节液滴尺寸分布的液滴的方法包括：使液体流以给定的相对冲击速度撞击支撑件; 使所述支撑件以至少一个振动频率振动; 将所述支撑件加热到冲击温度，使得通过冲击形成并使其振动的液体膜被加热到主要温度，从而形成所述膜中称为主液滴的组合; 并通过转移/制动/分选系统将液滴输送到用于沉淀主液滴的液体，所述输送在运输温度下进行，所有这些参数，即相对冲击速度，振动频率，主要温度和 允许所述形成的主液滴的液滴尺寸和后者的速度被调制的运输温度。 还提供允许该过程被实现的设备。

    ADVANCED DRY HEAD-END REPROCESSING OF LIGHT WATER REACTOR SPENT NUCLEAR FUEL
    7.
    发明申请
    ADVANCED DRY HEAD-END REPROCESSING OF LIGHT WATER REACTOR SPENT NUCLEAR FUEL 有权
    轻水反应堆潜在核燃料的先进干燥头端替代

    公开(公告)号：US20130336855A1

    公开(公告)日：2013-12-19

    申请号：US13969088

    申请日：2013-08-16

    申请人： UT-BATTELLE, LLC

    发明人： Emory D. COLLINS ,  Guillermo D. DELCUL ,  Rodney D. HUNT ,  Jared A. JOHNSON ,  Barry B. SPENCER

    IPC分类号： G21C19/48

    CPC分类号： G21C19/48 ,  C01B21/36 ,  C01G43/01 ,  C01G56/00 ,  G21C19/42 ,  Y02W30/884

    摘要： A method for reprocessing spent nuclear fuel from a light water reactor includes the step of reacting spent nuclear fuel in a voloxidation vessel with an oxidizing gas having nitrogen dioxide and oxygen for a period sufficient to generate a solid oxidation product of the spent nuclear fuel. The reacting step includes the step of reacting, in a first zone of the voloxidation vessel, spent nuclear fuel with the oxidizing gas at a temperature ranging from 200-450° C. to form an oxidized reaction product, and regenerating nitrogen dioxide, in a second zone of the voloxidation vessel, by reacting oxidizing gas comprising nitrogen monoxide and oxygen at a temperature ranging from 0-80° C. The first zone and the second zone can be separate. A voloxidation system is also disclosed.

    摘要翻译： 用于从轻水反应器再处理废核燃料的方法包括将废核燃料在氧化剂容器中与具有二氧化氮和氧气的氧化气体反应足以产生废核燃料的固体氧化产物的步骤。 反应步骤包括在氧化容器的第一区域中将废核燃料与氧化气体在200-450℃范围内反应以形成氧化反应产物并再生二氧化氮的步骤 通过使包含一氧化氮和氧气的氧化气体在0-80℃的温度范围内使氧化气体的第二区域反应。第一区域和第二区域可以是分开的。 还公开了一种血液透析系统。

    METHOD FOR PREPARING URANIUM CONCENTRATES BY FLUIDIZED BED PRECIPITATION, AND PREPARATION OF UO3 AND U3O8 BY DRYING/CALCINING SAID CONCENTRATES
    10.
    发明申请
    METHOD FOR PREPARING URANIUM CONCENTRATES BY FLUIDIZED BED PRECIPITATION, AND PREPARATION OF UO3 AND U3O8 BY DRYING/CALCINING SAID CONCENTRATES 有权
    通过流化床沉淀制备铀浓缩物的方法，以及通过干燥/计算酸浓度制备UO3和U3O8

    公开(公告)号：US20110212005A1

    公开(公告)日：2011-09-01

    申请号：US13127942

    申请日：2008-11-07

    申请人： Bruno Courtaud ,  Frederic Auger ,  Jacques Thiry

    发明人： Bruno Courtaud ,  Frederic Auger ,  Jacques Thiry

    IPC分类号： C22B60/02 ,  C01G56/00

    CPC分类号： C01G43/00 ,  C01G43/01 ,  C01P2004/03 ,  C01P2004/61 ,  C01P2006/10

    摘要： Method for producing a uranium concentrate in the form of solid particles, by precipitation from a uranium-containing solution using a precipitating agent, in a vertical reactor comprising a base, a top, a central part, an upper part, and a lower part, the solid particles of the uranium concentrate forming a fluidized bed under the action of a rising liquid current which circulates from the base towards the top of the reactor successively passing through the lower part, the central part and the upper part of the reactor, and which is created by introducing a liquid recycling current (flow) at the base of the reactor, said liquid recycling current being tapped at a first determined level (A) in the upper part of the reactor and sent back without settling to the base of the reactor, excess liquid being also evacuated via an overflow located at a second determined level (B) in the upper part of the reactor; a method in which the upper limit (C) of the fluidized bed of solid particles is controlled so that it is positioned at a level below the first and second determined levels.

    摘要翻译： 在包含基底，顶部，中心部分，上部和下部的立式反应器中，通过使用沉淀剂从含铀溶液中沉淀制备固体颗粒形式的铀浓缩物的方法， 铀浓缩物的固体颗粒在上升液流的作用下形成流化床，其从基体朝向反应器的顶部循环，依次通过反应器的下部，中心部分和上部，并且其中 是通过在反应器的底部引入液体循环电流（流动）而产生的，所述液体循环电流在反应器上部的第一确定水平（A）上被敲击，并在不沉降到反应器的底部 过多的液体也通过位于反应器上部的第二确定水平（B）的溢流抽真空; 控制固体颗粒的流化床的上限（C）使其位于低于第一和第二确定水平的水平的方法。