Salt filtration system and method of removing a radioactive material from a gas using the same
    2.
    发明授权
    Salt filtration system and method of removing a radioactive material from a gas using the same 有权
    盐过滤系统及使用该过滤系统从气体中除去放射性物质的方法

    公开(公告)号:US09302226B2

    公开(公告)日:2016-04-05

    申请号:US14269505

    申请日:2014-05-05

    摘要: A method of removing a radioactive material from a gas includes directing the gas through a bed of salt, wherein the gas includes water vapor and the radioactive material. The salt constitutes more than 50 percent by weight of the bed. The method additionally includes condensing the water vapor in the bed and dissolving a portion of the salt to form a salt solution. The method further includes absorbing the radioactive material into the salt solution while a remainder of the gas passes through the bed. A salt filtration system configured to perform the method may be implemented as a pre-filter (or post-filter) to an existing filter unit or as a standalone filter.

    摘要翻译: 从气体中去除放射性物质的方法包括将气体引导通过盐床,其中气体包括水蒸气和放射性物质。 盐占床重量的50%以上。 该方法还包括冷凝床中的水蒸气并溶解一部分盐形成盐溶液。 该方法还包括将放射性物质吸收到盐溶液中,而剩余的气体通过床。 配置为执行该方法的盐过滤系统可以实现为对现有过滤器单元或独立过滤器的预过滤器(或后过滤器)。

    METHOD FOR OBTAINING LACTIC ACID WITH A HIGH DEGREE OF PURITY FROM FERMENTATIVE LIQUOR
    3.
    发明申请
    METHOD FOR OBTAINING LACTIC ACID WITH A HIGH DEGREE OF PURITY FROM FERMENTATIVE LIQUOR 有权
    从发酵液中获得高纯度柠檬酸的方法

    公开(公告)号:US20130245320A1

    公开(公告)日:2013-09-19

    申请号:US13817722

    申请日:2011-08-17

    申请人: Paulo Yoshida

    发明人: Paulo Yoshida

    IPC分类号: C07C51/42

    摘要: The present invention describes a process for obtaining lactic acid with a high degree of purity from a fermentative liquor (1) containing sodium lactate, with a view to the production of polylactic acid. The process comprises the unitary operations of centrifugation (101), centrifugal decantation (102), microfiltration (103), ultrafiltration (104), primary filtration in an activated charcoal bed (105), conventional electrodialysis (201), ion exchange columns in a chelating resin bed (202), bipolar electrodialysis (203), ion exchange columns (204), primary evaporation under vacuum (302), secondary filtration in an activated charcoal bed (304), liquid-liquid extraction from the aqueous phase to the organic phase (305), back extraction from the organic phase to the aqueous phase (306), and secondary, atmospheric evaporation (402).

    摘要翻译: 本发明描述了从含有乳酸钠的发酵液(1)获得具有高纯度的乳酸的方法,以生产聚乳酸。 该方法包括离心(101),离心倾析(102),微滤(103),超滤(104),活性炭床(105)中的初级过滤,常规电渗析(201),离子交换柱 螯合树脂床(202),双极电渗析(203),离子交换塔(204),真空初级蒸发(302),活性炭床(304)中的二次过滤,液 - 液从水相萃取到有机 阶段(305),从有机相回到水相(306)和次级大气蒸发(402)。

    Process for tritium removal from light water
    4.
    发明授权
    Process for tritium removal from light water 失效
    从轻水中除去氚的工艺

    公开(公告)号:US07470350B2

    公开(公告)日:2008-12-30

    申请号:US11737788

    申请日:2007-04-20

    摘要: A process for light water detritiation which includes the steps of water distillation for tritium stripping and enriching, followed by chemical conversion of tritium enriched water to elemental hydrogen, and finally by one or more thermal diffusion columns for final tritium enrichment. The combination of process steps takes advantage of water distillation large throughput capability at low tritium concentration with the simplicity of thermal diffusion for small throughput final tritium enrichment. The water distillation front-end and the thermal diffusion back end processes are compatible with any intermediate chemical conversion process such as electrolysis or water gas shift reaction to convert tritiated water to elemental hydrogen.

    摘要翻译: 一种淡水脱水方法,其中包括水蒸馏,用于氚汽提和富集,然后将富含氚的水化学转化成元素氢,最后通过一个或多个热扩散塔进行最终的氚富集。 工艺步骤的组合利用水蒸馏在低氚浓度下的大通量能力,而对于小通量最终氚浓缩,具有热扩散的简单性。 水蒸馏前端和热扩散后端方法与任何中间化学转化过程(如电解或水煤气变换反应)相结合,以将氚化水转化为元素氢。

    Process for production of isotopes
    5.
    发明授权
    Process for production of isotopes 失效
    同位素生产工艺

    公开(公告)号:US07302812B2

    公开(公告)日:2007-12-04

    申请号:US10654216

    申请日:2003-09-02

    IPC分类号: F25J3/00

    摘要: A process for producing an isotopically enriched compound of a desired isotope includes (a) providing a cryogenic reaction zone containing a catalyst adapted to catalyze an isotope exchange reaction at a cryogenic reaction temperature, (b) feeding to the cryogenic reaction zone an enriched mixture comprising at least a compound containing the desired isotope, wherein the enriched mixture is enriched in the desired isotope above a natural abundance of the desired isotope, (c) reacting the enriched mixture in the cryogenic reaction zone thereby forming a resulting mixture containing the isotopically enriched compound, and (d) separating the resulting mixture into an enriched product which is enriched in the isotopically enriched compound and a depleted product which is depleted in the isotopically enriched compound.

    摘要翻译: 一种用于产生所需同位素同位素富集的化合物的方法包括(a)提供含有适于在低温反应温度下催化同位素交换反应的催化剂的低温反应区,(b)向低温反应区提供富集的混合物, 至少含有所需同位素的化合物,其中富集的混合物富含所需同位素的天然丰度以上,(c)使富集的混合物在低温反应区中反应,从而形成含有同位素富集化合物的所得混合物 ,和(d)将所得混合物分离成富集的同位素富集的化合物的富集产物和富含同位素的化合物中耗尽的贫化产物。

    PROCESS FOR TRITIUM REMOVAL FROM LIGHT WATER
    6.
    发明申请
    PROCESS FOR TRITIUM REMOVAL FROM LIGHT WATER 失效
    从轻水中除去三氯乙烯的工艺

    公开(公告)号:US20070246344A1

    公开(公告)日:2007-10-25

    申请号:US11737788

    申请日:2007-04-20

    IPC分类号: C01B3/02 B01D3/34

    摘要: A process for light water detritiation comprised of water distillation for tritium stripping and enriching, followed by chemical conversion of tritium enriched water to elemental hydrogen, and finally by one or more thermal diffusion columns for final tritium enrichment. The combination of process steps takes advantage of water distillation large throughput capability at low tritium concentration with the simplicity of thermal diffusion for small throughput final tritium enrichment. The water distillation front-end and the thermal diffusion back end processes are compatible with any intermediate chemical conversion process such as electrolysis or water gas shift reaction to convert tritiated water to elemental hydrogen.

    摘要翻译: 一种用于轻水脱水的方法,包括用于氚汽提和富集的水蒸馏,然后将富含氚的水化学转化为元素氢,最后通过一个或多个热扩散塔进行最终的氚富集。 工艺步骤的组合利用水蒸馏在低氚浓度下的大通量能力,而对于小通量最终氚浓缩,具有热扩散的简单性。 水蒸馏前端和热扩散后端方法与任何中间化学转化过程(如电解或水煤气变换反应)相结合,以将氚化水转化为元素氢。

    Novel hybrid isotope separation scheme and apparatus
    7.
    发明授权
    Novel hybrid isotope separation scheme and apparatus 失效
    新型混合同位素分离方案和装置

    公开(公告)号:US5024739A

    公开(公告)日:1991-06-18

    申请号:US323920

    申请日:1989-03-15

    申请人: Jakob Maya

    发明人: Jakob Maya

    IPC分类号: B01D59/20 B01D59/34 B01D59/50

    CPC分类号: B01D59/50 Y10S494/902

    摘要: A method of yielding selectively a desired enrichment in a specific isotope including the steps of inputting into a spinning chamber a gas from which the specific isotope is to be isolated, radiating the gas with frequencies characteristic of the absorption of a particular isotope of the atomic or molecular gas, thereby inducing a photoionization reaction of the desired isotope, and collecting the specific isotope ion by suitable ion collection means.

    Laser-assisted isotope separation of tritium
    8.
    发明授权
    Laser-assisted isotope separation of tritium 失效
    激光辅助同位素分离氚

    公开(公告)号:US4411755A

    公开(公告)日:1983-10-25

    申请号:US210716

    申请日:1980-11-28

    CPC分类号: G21C19/307 B01D59/50

    摘要: Methods for laser-assisted isotope separation of tritium, using infrared multiple photon dissociation of tritium-bearing products in the gas phase. One such process involves the steps of (1) catalytic exchange of a deuterium-bearing molecule XYD with tritiated water DTO from sources such as a heavy water fission reactor, to produce the tritium-bearing working molecules XYT and (2) photoselective dissociation of XYT to form a tritium-rich product. By an analogous procedure, tritium is separated from tritium-bearing materials that contain predominately hydrogen such as a light water coolant from fission or fusion reactors.

    摘要翻译: 氚的激光辅助同位素分离方法,采用氚负离子产物在气相中的红外多光子解离。 一种这样的方法包括以下步骤:(1)从氚水裂解反应器等来源的氚化水DTO催化交换含氘分子XYD,以产生含氚的工作分子XYT和(2)XYT的光选离解 以形成富含氚的产物。 通过类似的方法,将氚与主要含有氢的氚承载材料分离,例如来自裂变或聚变反应堆的轻水冷却剂。

    High atomic weight isotope separator
    9.
    发明授权
    High atomic weight isotope separator 失效
    高原子量同位素分离器

    公开(公告)号:US4107524A

    公开(公告)日:1978-08-15

    申请号:US637562

    申请日:1975-12-04

    申请人: David L. Book

    发明人: David L. Book

    IPC分类号: B01D59/50 H01J49/00 H01J39/00

    CPC分类号: B01D59/50 H01J49/00

    摘要: A method of separating one isotopic species of a given element from a mixture. Collisionless plasma instabilities slow down the ions and oppositely charged electrodes separate the isotopes.

    摘要翻译: 从混合物中分离给定元素的一种同位素物种的方法。 无碰撞的等离子体不稳定性使离子减慢,反电荷电极分离同位素。

    Method for separating isotopes
    10.
    发明授权
    Method for separating isotopes 失效
    分离同位素的方法

    公开(公告)号:US4093427A

    公开(公告)日:1978-06-06

    申请号:US543232

    申请日:1975-01-23

    IPC分类号: B01D59/00 B01D59/50 B01D57/00

    CPC分类号: B01D59/50 B01D59/00

    摘要: The present invention utilizes a vortex tube for separating isotopes. A gas mixture containing the isotopic molecules enters the vortex tube under pressure and is separated into a hot discharge flow stream and a cold discharge flow stream. The hot discharge is enriched in lighter isotopic molecules whereas the cold discharge flow stream is enriched in the heavier isotopic molecules. The vortex tube can be used in a single stage or multistage isotope separation apparatus.

    摘要翻译: 本发明利用涡流管分离同位素。 包含同位素分子的气体混合物在压力下进入涡流管并分离成热排出流和冷排出流。 热放电富集较轻的同位素分子,而冷排出流则富集在较重的同位素分子中。 涡流管可用于单级或多级同位素分离装置。