公开(公告)号：USRE35741E

公开(公告)日：1998-03-10

申请号：US778714

申请日：1996-12-27

Applicant: Yoram Oren ,  Anthony J. Giuffrida ,  Stephen M. Ciaccio ,  Gary C. Ganzi

Inventor： Yoram Oren ,  Anthony J. Giuffrida ,  Stephen M. Ciaccio ,  Gary C. Ganzi

IPC: B01D61/48 ,  B01J47/08 ,  C02F1/42 ,  C02F1/46 ,  C02F1/469

CPC classification number: C02F1/4695 ,  B01D61/48 ,  B01J47/08 ,  C02F1/42 ,  C02F1/4604 ,  C02F2201/46115 ,  C02F2201/4612 ,  C02F2201/4613 ,  C02F2209/05

Abstract: A process is provided for removing ions from water which is passed through an ion depletion compartment of an electrodeionization apparatus. The electrodeionization apparatus contains an ion depletion compartment containing mixed ion exchange resin beads and an ion concentration compartment which may contain ion exchange resin beads in a given separation stage having an anode and a cathode. The anion resin beads and cation resin beads utilized each comprise beams of substantially uniform size. A second liquid is passed through the ion concentration compartment to collect ions under the influence of DC potential which pass from the depletion compartments into the concentration compartments through ion permeable membranes. The electrodeionization apparatus can be operated continuously since resin regeneration is not required.

公开(公告)号：US5679229A

公开(公告)日：1997-10-21

申请号：US767532

申请日：1996-12-16

Applicant: Arthur L. Goldstein ,  Wayne A. McRae ,  Keith J. Sims

Inventor： Arthur L. Goldstein ,  Wayne A. McRae ,  Keith J. Sims

IPC: A23C9/144 ,  B01D61/44 ,  B01D61/46 ,  B01D61/48 ,  B01D61/58 ,  B01J47/08 ,  C01B11/04 ,  C01B11/06 ,  C02F1/42 ,  C02F1/44 ,  C02F1/467 ,  C02F1/469 ,  C02F9/00

CPC classification number: A23C9/144 ,  B01D61/44 ,  B01D61/48 ,  B01D61/58 ,  B01J47/08 ,  C01B11/04 ,  C01B11/06 ,  C02F1/441 ,  C02F1/469 ,  B01D61/025 ,  B01D61/027 ,  B01D61/145 ,  B01D61/147 ,  B01D61/422 ,  C02F1/42 ,  C02F1/44 ,  C02F1/4674 ,  C02F1/4693 ,  C02F1/4695 ,  C02F2101/163 ,  C02F2201/46115 ,  C02F9/00

Abstract: Improved electrodialysis (ED) stacks are disclosed having one or more components selected from the group: a) cation exchange membranes having ion exchange groups predominantly sulfonic acid groups and a minor amount of weakly acidic and/or weakly basic groups or membranes which are selective to monovalent cations and simultaneously therewith, cation exchange granules selective to monovalent cations as packing in the dilute compartments; b) anion exchange membranes having as ion exchange groups only quaternary ammonium and/or quaternary phosphonium groups and substantially no primary, secondary and/or tertiary amine and/or phosphine groups or membranes which are selective to monovalent anions simultaneously therewith, anion exchange granules selective to monovalent anions as packing in the dilute compartments; c) as packing in the dilute compartment, anion exchange granules which are selective to monovalent anions, or cation exchange granules which are selective to monovalent cations, or cation exchange granules having as exchange groups a predominant amount of sulfonic acid groups and a minor amount of weakly acidic and/or weakly basic groups, or anion exchange granules consisting of organic polymers having as anion exchange groups only quaternary ammonium and/or quaternary phosphonium groups and almost no primary, secondary and/or tertiary amine and/or phosphine groups.

公开(公告)号：US5644064A

公开(公告)日：1997-07-01

申请号：US274784

申请日：1994-07-14

Applicant: Olivier Leclerc

Inventor： Olivier Leclerc

IPC: C07D333/16 ,  B01J45/00 ,  B01J47/08 ,  C07D207/32 ,  C07D207/325 ,  C07D207/333 ,  C07D333/34 ,  C07D333/38 ,  C07D498/22 ,  C08G61/12 ,  C08G65/32 ,  C08G65/333 ,  C08L71/02 ,  C08L79/04 ,  C25B3/00 ,  C07D207/04 ,  C07D207/08

CPC classification number: C07D207/325 ,  B01J45/00 ,  B01J47/08 ,  C08G61/123 ,  C08G65/33317 ,  C08L71/02 ,  C08L79/04 ,  Y02P20/55 ,  Y10S210/912

Abstract: It concerns a monomer, a polymer obtained from the monomer and a process for obtaining the said polymer. The monomer consists of a polyether containing at least 3 ether units and pyrrole or thiophene units bonded to the ends of the chains of this polyether via, for each of these heterocycic compounds, either their carbon atoms in the 3,3'-positions of their heterocycles or, as regards more particularly the pyrrole groups, via their respective nitrogen atoms, the 2- and 2'-positions of these heterocycles being, however, free of all substitutions or, at the very most, substituted by easily removable groups (protective groups, for example).Application to the purification and recovery of metal ions such as radioactive silver.

公开(公告)号：US5605993A

公开(公告)日：1997-02-25

申请号：US473112

申请日：1995-06-07

Applicant: Olivier LeClerc

Inventor： Olivier LeClerc

IPC: C07D333/16 ,  B01J45/00 ,  B01J47/08 ,  C07D207/32 ,  C07D207/325 ,  C07D207/333 ,  C07D333/34 ,  C07D333/38 ,  C07D498/22 ,  C08G61/12 ,  C08G65/32 ,  C08G65/333 ,  C08L71/02 ,  C08L79/04 ,  C25B3/00 ,  C08F128/06 ,  B01D39/00 ,  C08F116/12 ,  C08F126/06 ,  C25D9/02

CPC classification number: C07D207/325 ,  B01J45/00 ,  B01J47/08 ,  C08G61/123 ,  C08G65/33317 ,  C08L71/02 ,  C08L79/04 ,  Y02P20/55 ,  Y10S210/912

Abstract: It concerns a monomer, a polymer obtained from the monomer and a process for obtaining the said polymer. The monomer consists of a polyether containing at least 3 ether units and pyrrole or thiophene units bonded to the ends of the chains of this polyether via, for each of these heterocycic compounds, either their carbon atoms in the 3,3'-positions of their heterocycles or, as regards more particularly the pyrrole groups, via their respective nitrogen atoms, the 2- and 2'-positions of these heterocycles being, however, free of all substitutions or, at the very most, substituted by easily removable groups (protective groups, for example).Application to the purification and recovery of metal ions such as radioactive silver.

Abstract translation: 它涉及单体，从单体获得的聚合物和获得所述聚合物的方法。 单体由含有至少3个醚单元的聚醚和与该聚醚的链末端键合的吡咯或噻吩单元组成，对于这些杂环化合物中的每一个，它们的3,3'位的碳原子 或者更具体地说是吡咯基团，通过它们各自的氮原子，这些杂环的2位和2位不过是全部取代，或者最多被易于除去的基团取代（保护性 组）。 应用于金属离子如放射性银的纯化和回收。

公开(公告)号：US5593554A

公开(公告)日：1997-01-14

申请号：US549647

申请日：1995-10-27

Applicant: Koji Yamanaka ,  Takashi Imaoka ,  Takashi Futatsuki ,  Yukinari Yamashita

Inventor： Koji Yamanaka ,  Takashi Imaoka ,  Takashi Futatsuki ,  Yukinari Yamashita

IPC: C25B1/04 ,  B01D61/44 ,  B01D61/48 ,  B01D61/58 ,  B01J47/08 ,  C02F1/44 ,  C02F1/461 ,  C02F1/469 ,  C02F9/00 ,  C25B9/00 ,  C25B9/08

CPC classification number: C02F1/4618 ,  B01D61/44 ,  B01D61/48 ,  B01D61/58 ,  B01J47/08 ,  C02F1/4695 ,  B01D61/025 ,  B01D61/145 ,  B01D61/147 ,  C02F1/44 ,  C02F2001/46133 ,  C02F2201/4611 ,  C02F2201/46115 ,  C02F2201/4618 ,  C02F2201/4619 ,  C02F2201/46195 ,  C02F2209/04 ,  C02F9/00 ,  Y02E60/366

Abstract: In an electrolytic ionized water (EIW) producing apparatus, a three-chamber electrolyzer includes an anode chamber, a cathode chamber and an intermediate chamber. An influent such as deionized water is supplied to these chamber via inlet lines. Further an electrolyte supplying units are connected to the inlet lines of the anode chamber and the inlet line of the cathode chamber.

Abstract translation: 在电解电离水（EIW）制造装置中，三室电解槽具有阳极室，阴极室和中间室。 诸如去离子水的流入物通过入口管线被供应到这些室。 此外，电解质供应单元连接到阳极室的入口管线和阴极室的入口管线。

公开(公告)号：US5536387A

公开(公告)日：1996-07-16

申请号：US428457

申请日：1995-04-27

Applicant: Michael R. H. Hill ,  Mark D. Neville ,  Andrew D. Turner

Inventor： Michael R. H. Hill ,  Mark D. Neville ,  Andrew D. Turner

IPC: G03C5/00 ,  B01D61/48 ,  B01J47/08 ,  C02F1/42 ,  C02F1/46 ,  C02F1/461 ,  C02F1/469 ,  C02F1/62 ,  C22B3/20 ,  C22B11/00 ,  C25C1/20 ,  C02F1/463

CPC classification number: B01J47/08 ,  B01D61/48 ,  C02F1/469 ,  C02F1/4691 ,  C02F1/62 ,  C02F1/42 ,  C02F1/4604 ,  C02F1/4695 ,  C02F2001/46133 ,  C02F2101/103 ,  C02F2101/163 ,  C02F2103/40 ,  C02F2201/46115 ,  C23F2201/02

Abstract: Effluent streams from photographic processes contain both silver and thiosulphate ions, and because of the formation of complex anions it is difficult to remove the silver. The silver may be removed using a cell (12) with a cathode (24) exposed to the effluent liquid, and an anode (25) separated from the liquid by a barrier (22) permeable at least to anions. Some silver sulphide is formed electrochemically at the cathode (24); at the anode (25) water is electrolysed and becomes acidic, so the complex anions migrating through the barrier (22) generate silver sulphide chemically. The resulting silver sulphide precipitate is separated from the liquid by a filter (14).

Abstract translation: 来自摄影过程的流出物流含有银和硫代硫酸根离子，并且由于形成复杂的阴离子，因此难以除去银。 银可以使用暴露于流出液体的阴极（24）的电池（12）和通过至少可阴离子渗透的屏障（22）与液体分离的阳极（25）来除去。 一些硫化银在阴极（24）处电化学形成; 在阳极（25），水被电解并变成酸性，所以通过阻挡层（22）迁移的复合阴离子化学地产生硫化银。 所得的硫化银沉淀物通过过滤器（14）与液体分离。

公开(公告)号：US5423965A

公开(公告)日：1995-06-13

申请号：US149837

申请日：1993-11-10

Applicant: Gerhard Kunz

Inventor： Gerhard Kunz

IPC: B01J47/08 ,  B01J49/00 ,  B01D61/44

CPC classification number: B01J49/0052 ,  B01J47/08

Abstract: An electrolytic process and apparatus are disclosed for regenerating separate bed ion exchange resins used to demineralize aqueous solutions, preferably softened water, without the use of additional chemicals. The cation exchanger is regenerated by applying a DC electric voltage between an anode and a cathode across the cation exchanger whereby hydrogen ions produced at the anode displace cations previously absorbed on the cation exchanger during the previous demineralization cycle. The displaced cations move towards the cathode under the influence of the electric voltage and there form a caustic solution with hydroxyl ions produced by the cathode. The cathodically generated caustic solution is then used to chemically regenerate the anion exchanger in a traditional manner. Two embodiments of the invention are disclosed, one of which is an intermittent system of demineralization and regeneration and the other is a continuously operating system.

Abstract translation: 公开了一种用于再生分离床离子交换树脂的电解方法和装置，其用于使水溶液，优选软化水软化，而不使用额外的化学品。 通过在阳极交换器之间施加阳极和阴极之间的直流电压来再生阳离子交换器，由此在阳极处产生的氢离子在先前的脱盐循环期间移动先前在阳离子交换器上吸收的阳离子。 置换的阳离子在电压的影响下向阴极移动，并且形成由阴极产生的羟基离子的苛性碱溶液。 然后将阴极生成的苛性碱溶液以传统方式化学再生阴离子交换剂。 公开了本发明的两个实施例，其中之一是脱盐和再生的间歇系统，另一个是连续操作的系统。

公开(公告)号：US5384017A

公开(公告)日：1995-01-24

申请号：US26745

申请日：1993-03-05

Applicant: Roger Lumbroso

Inventor： Roger Lumbroso

IPC: B01J47/08 ,  B01J47/12 ,  C01G9/02 ,  C01G11/00 ,  C01G37/00 ,  C01G43/01 ,  C01G51/04 ,  C01G53/04 ,  C01G56/00 ,  C25B1/00

CPC classification number: C25B1/00

Abstract: Metal hydroxides are produced in an easy-to-separate powder form from metal in solution, by passing an electric current through the solution to produce the formation of a preceipitated hydroxide against a solid ion-exchange membrane, which membrane separates the anode compartment from the cathode compartment. When the solution is acidic, the membrane is an anion exchange membrane. When the solution is basic, the membrane is a cation exchange membrane.

Abstract translation: 金属氢氧化物以易于分离的粉末形式从溶液中的金属生产，通过使电流通过溶液以产生对固体离子交换膜形成预先氢化的氢氧化物，该膜将阳极室与 阴极室。 当溶液呈酸性时，膜是阴离子交换膜。 当溶液是碱性时，膜是阳离子交换膜。

公开(公告)号：US5360540A

公开(公告)日：1994-11-01

申请号：US27699

申请日：1993-03-08

Applicant: Marc D. Andelman

Inventor： Marc D. Andelman

IPC: B01D15/00 ,  B01D15/08 ,  B01J47/08 ,  C02F1/00 ,  C02F1/469 ,  G01N30/02 ,  G01N30/38 ,  G01N30/50 ,  G01N30/60 ,  G01N30/80 ,  G01N30/96

CPC classification number: B01J47/08 ,  B01D15/08 ,  B01D15/3885 ,  C02F1/4691 ,  G01N30/50 ,  G01N30/6069 ,  G01N30/96 ,  C02F2301/024 ,  G01N2030/027 ,  G01N2030/965 ,  G01N30/02 ,  G01N30/38 ,  G01N30/6043 ,  G01N30/6091 ,  G01N30/80

Abstract: A controlled charge chromatography column for the purification of a fluid-containing material, which column comprises a chromatographic column having an inlet for the introduction of a fluid to be purified and an outlet for the discharge of the purified fluid, and one or more concentrated materials and a flow-through capacitor disposed within the column between the inlet and the outlet, the flow-through capacitor means comprising a plurality of spirally wound or stacked washer layers to include a first electrically conductive backing layer, such as of graphite, and a first high surface area conductive layer secured to the backing layer, such as composed of porous carbon fibers and a non-conductive, porous spacer layer to electrically insulate the backing and conductive layer and to permit the flow of material therethrough, the flow-through capacitor to be connected to a DC power source to charge the respective conductive layers with different polarities whereby a fluid containing material through the column is purified by the electrically conductive stationary phase and the retention thereof onto the high surface area layer and permitting for example the purification of solutions of liquids, such as salt, and providing for the recovery of a purified liquid.

Abstract translation: 一种用于纯化含液体材料的受控电荷色谱柱，该色谱柱包括具有用于引入待纯化流体的入口和用于排出纯化流体的出口的色谱柱，以及一种或多种浓缩物质 以及设置在入口和出口之间的柱内的流通电容器，所述流通电容器装置包括多个螺旋卷绕或堆叠的垫圈层，以包括第一导电背衬层，例如石墨，以及第一 固定到背衬层的高表面积导电层，例如由多孔碳纤维和非导电多孔间隔层组成，以使背衬和导电层电绝缘并允许材料流过其中，流过电容器 连接到DC电源以对具有不同极性的各个导电层​​充电，由此含有流体 通过该柱由导电固定相纯化，并将其保留在高表面积层上，并且允许例如净化诸如盐的液体溶液，并提供纯化液体的回收。

公开(公告)号：US5308467A

公开(公告)日：1994-05-03

申请号：US850263

申请日：1992-08-12

Applicant: Takanobu Sugo ,  Isao Ishigaki ,  Kunio Fujiwara ,  Hideaki Sekiguchi ,  Hideo Kawazu ,  Takayuki Saito

Inventor： Takanobu Sugo ,  Isao Ishigaki ,  Kunio Fujiwara ,  Hideaki Sekiguchi ,  Hideo Kawazu ,  Takayuki Saito

IPC: B01D61/48 ,  B01J43/00 ,  B01J47/08 ,  B01J49/00 ,  C02F1/46 ,  C02F1/469 ,  B01D61/44

CPC classification number: B01D61/48 ,  B01J43/00 ,  B01J47/08 ,  B01J49/0052 ,  C02F1/4604 ,  C02F1/469

Abstract: The improved electrically regenerable demineralizing apparatus uses ion exchangers that are produced by radiation-initiated graft polymerization and that are packed in the demineralizing compartment of an electrodialyzer. The apparatus may use a mosaic ion exchanger that consists of alternately arranged cation- and anion-exchange groups. Alternately, the apparatus may have an immobilized amino acid packed in the demineralizing compartment of an electrodialyzer. The apparatus maintains consistent water quality for a prolonged time, is capable of treating from small to large volumes of water and yet is easy to service and manage.

Abstract translation: 改进的电可再生脱盐装置使用通过辐射引发的接枝聚合制备并且包装在电渗析器的脱盐室中的离子交换剂。 该装置可以使用由交替布置的阳离子和阴离子交换基团组成的马赛克离子交换剂。 或者，该装置可以具有包装在电渗析器的去矿质室中的固定化氨基酸。 该设备长时间保持一致的水质，能够从小量到大量的水处理，但易于维护和管理。