Ion removal from particulate material using electrodeionization process and devices therefor
    212.
    发明申请
    Ion removal from particulate material using electrodeionization process and devices therefor 审中-公开
    使用电去离子处理从颗粒物质离子去除及其装置

    公开(公告)号:US20060042957A1

    公开(公告)日:2006-03-02

    申请号:US10928302

    申请日:2004-08-27

    Applicant: Chunzhi He

    Inventor: Chunzhi He

    CPC classification number: B01J47/08 B01J21/18 B01J23/42 C02F1/4695

    Abstract: Methods are disclosed for the electrodeionization and removal of at least some of at least one type of ion from an ion-containing particulate material comprising passing a direct current for a sufficient time between (a) an anode and (b) a cathode, wherein the anode and the cathode are both in electrical contact with an aqueous slurry of the particulate material, wherein the anode is in electrical contact with an anion exchange membrane and wherein the cathode is in electrical contact with a cation exchange membrane, thereby causing the removal of at least some of the at least one type of ion to be removed from the particulate material. Also disclosed are devices for the electrodeionization and removal of at least some of at least one type of ion from an ion-containing particulate material.

    Abstract translation: 公开了用于从含离子的颗粒材料去除和去除至少一种类型的离子的方法,包括在(a)阳极和(b)阴极之间传递直流电流足够的时间,其中 阳极和阴极都与颗粒材料的水性浆料电接触,其中阳极与阴离子交换膜电接触,并且其中阴极与阳离子交换膜电接触,从而导致在 要从颗粒材料中去除的至少一种类型的离子中的至少一种。 还公开了用于从含离子的颗粒材料去离子和去除至少一种类型的离子的至少一些的装置。

    Device for magnetically controlled electrodeionization
    213.
    发明授权
    Device for magnetically controlled electrodeionization 失效
    用于磁控电去离子的装置

    公开(公告)号:US06991716B2

    公开(公告)日:2006-01-31

    申请号:US10772569

    申请日:2004-02-05

    CPC classification number: B01D61/52 B01D61/48 B01J47/08 C02F1/469 C02F1/48

    Abstract: In a device for electro-deionization (EDI) in the demineralization of aqueous solutions, which device includes ion exchange membranes arranged alternately and in spaced relationship so that between the membranes compartments are formed of which at least some are filled with cation and anion resin exchange particle fractions forming a mixed bed ion exchanger, the ion exchange resin particles of one of the two fractions include a magnetic material and a magnetic field generator is provided for generating a field for orienting the magnetic resin particles and arranging them in parallel chains extending between the membranes.

    Abstract translation: 在用于水溶液脱矿质的电去离子(EDI)的装置中,该装置包括交替排列并且间隔开的关系的离子交换膜,使得形成膜隔室之间至少一些填充有阳离子和阴离子树脂交换 形成混合床离子交换剂的颗粒级分,两种级分中的一种的离子交换树脂颗粒包括磁性材料,并且提供磁场发生器用于产生用于使磁性树脂颗粒定向的场,并将它们布置成平行的链, 膜。

    Fractional deionization process
    214.
    发明授权
    Fractional deionization process 有权
    分数去离子过程

    公开(公告)号:US06896814B2

    公开(公告)日:2005-05-24

    申请号:US10325372

    申请日:2002-12-19

    Abstract: A liquid treatment process is described for sequential removal of ionic species of progressively decreasing ionic strength without precipitation or “scaling.” An aspect of the invention includes dual electrodeionization operations. The first electrodeionization operation is performed at a voltage calculated to remove strongly ionized species such as calcium and magnesium from the feed water without scaling. The product of the first electrodeionization operation is then subjected to a second electrodeionization operation. The second electrodeionization operation is performed at a voltage greater than the first electrodeionization operation, and is designed to remove more weakly ionized species such as silica and carbon dioxide, preventing scaling. More than two successive electrodeionization operations may be performed if desired. Multiple electrodeionization operations may occur in a single electrodeionization stack or in multiple electrodeionization stacks.

    Abstract translation: 描述了一种液体处理方法,用于顺序地去除逐渐降低的离子强度的离子物质,而没有沉淀或“结垢”。 本发明的一个方面包括双电解离子化操作。 第一电去电离操作以计算为从进料水中除去强烈离子化物质例如钙和镁的电压进行,而没有结垢。 然后对第一电去电离操作的产物进行第二电去离子化操作。 第二电去离子化操作以大于第一电去离子化操作的电压进行,并且被设计成去除更弱的电离物质如二氧化硅和二氧化碳,防止结垢。 如果需要,可以进行两次以上的电去离子化操作。 多个电去离子化操作可能发生在单个电去离子堆叠或多个电去离子堆叠中。

    Fluid purification devices and methods employing deionization followed by ionization followed by deionization
    217.
    发明授权
    Fluid purification devices and methods employing deionization followed by ionization followed by deionization 有权
    流体净化装置和方法采用去离子化,随后进行离子化,然后进行去离子

    公开(公告)号:US06780328B1

    公开(公告)日:2004-08-24

    申请号:US09446471

    申请日:2000-03-24

    Applicant: Li Zhang

    Inventor: Li Zhang

    Abstract: The invention provides the continuous, integrated methods and devices for substantially removing ionized and ionizable carbon compounds from an aqueous stream by first deionization step to produce a first product stream, ionizing nonionized and nonionizable carbon compounds in such stream to form further ionized and ionizable compounds, and removing the latter by a second deionization step. The method can be performed for example in an apparatus including an EDI unit (10), an ionizing unit (60), and EDI unit (100).

    Abstract translation: 本发明提供了连续的,综合的方法和装置,用于通过第一去离子步骤从水流中基本上去除离子化和可离子化的碳化合物,以产生第一产物流,在该流中离子化非离子和不可分解的碳化合物以形成另外的电离和可离子化的化合物, 并通过第二去离子步骤去除后者。 该方法可以例如在包括EDI单元(10),电离单元(60)和EDI单元(100)的设备中执行。

    ELECTROCHEMICAL PROCESS FOR DECONTAMINATION OF RADIOACTIVE MATERIALS
    219.
    发明申请
    ELECTROCHEMICAL PROCESS FOR DECONTAMINATION OF RADIOACTIVE MATERIALS 有权
    放射性物质去除电化学工艺

    公开(公告)号:US20030178308A1

    公开(公告)日:2003-09-25

    申请号:US10106481

    申请日:2002-03-25

    Abstract: A system for decontamination of radioactive components includes an acidic decontamination solution which is exposed to radioactive components to remove a layer of contaminated material and an ion exchange cell which removes the radioactive contamination from the decontamination solution. The ion exchange cell has cathode, anode and central compartments. The decontamination solution flows into the central compartment and the radioactive cations in the solution are drawn towards the cathode. The acidity in the cathode chamber is controlled so that small radioactive metal particles are deposited on the cathode. A cathode solution flows over the cathode which removes the deposited radioactive particles. The cathode solution and small particles flow into a waste collection container where the metal particles settle to the bottom of the container where they are easily separated from the solution. The only waste product produced by the system are the small radioactive metal particles which are easily disposed of. All liquids used in the decontamination process may be recycled.

    Abstract translation: 用于放射性成分去污的系统包括暴露于放射性组分以除去一层被污染物质的酸性去污溶液和从去污溶液中去除放射性污染物的离子交换池。 离子交换池具有阴极,阳极和中央隔室。 去污溶液流入中央隔室,溶液中的放射性阳离子被吸向阴极。 控制阴极室中的酸度使得小的放射性金属颗粒沉积在阴极上。 阴极溶液流过阴极,去除沉积的放射性粒子。 阴极溶液和小颗粒流入废物收集容器中,其中金属颗粒沉降到容器的底部,在容器的底部容易与溶液分离。 该系统产生的唯一废物是容易处理的小型放射性金属颗粒。 在去污过程中使用的所有液体都可以回收利用。

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