Fluorine removal by ion exchange
    2.
    发明授权
    Fluorine removal by ion exchange 失效
    通过离子交换除氟

    公开(公告)号:US07470413B2

    公开(公告)日:2008-12-30

    申请号:US10759718

    申请日:2004-01-16

    Abstract: A method for removing fluorine gas from a selected environment comprises contacting the fluorine gas with water to generate a solution of hydrofluoric acid and contacting the solution of hydrofluoric acid with an ion exchange resin having an active state operative to exchange selected ions therein for fluoride ions in the solution. The apparatus (200) may include a dual resin setup (222, 223) such that one of the ion-exchange resin can be in the service cycle while the other of the ion-exchange resins undergoes the regeneration and rinse/refill cycles.

    Abstract translation: 从所选择的环境中除去氟气的方法包括使氟气与水接触以产生氢氟酸溶液,并使氢氟酸溶液与具有活性状态的离子交换树脂接触,以在其中交换选定的离子用于氟离子 解决方案。 装置(200)可以包括双重树脂装置(222,223),使得一个离子交换树脂可以处于使用循环中,而另一个离子交换树脂经历再生和冲洗/再填充循环。

    Selective fluoride and ammonia removal by chromatographic separation of wastewater
    6.
    发明申请
    Selective fluoride and ammonia removal by chromatographic separation of wastewater 审中-公开
    通过色谱分离废水选择性氟化物和氨

    公开(公告)号:US20060065602A1

    公开(公告)日:2006-03-30

    申请号:US11283080

    申请日:2005-11-18

    Abstract: A process for fluoride removal from wastewater streams produced during industrial operation for further industrial use or to comply with environmental regulations. The process segregates the removal of fluoride and fluorosilicate ions, from the totality of ions in the waste water stream, thus improving treatment efficiency and reducing costs. Ion-exchange chromatography is used to remove the fluoride and fluorosilicate ions by passing the wastewater stream through one or more columns that contain a charged resin which selectively binds cations/anions in the stream. The fluoride ions are washed from the column and then collected for removal or use in other processes.

    Abstract translation: 用于在工业运行期间产生的用于进一步工业用途或符合环境规定的废水流中氟化物除去的过程。 该方法从氟化物和氟硅酸盐离子的去除中排除了废水流中离子的总量,从而提高了处理效率并降低了成本。 离子交换色谱用于通过使废水流通过一个或多个含有带电树脂的柱,以选择性地结合物流中的阳离子/阴离子来除去氟化物和氟硅酸盐离子。 氟化物离子从柱中洗涤,然后收集用于除去或用于其它方法。

    Selective fluoride and ammonia removal by chromatographic separation of wastewater
    7.
    发明申请
    Selective fluoride and ammonia removal by chromatographic separation of wastewater 失效
    通过色谱分离废水选择性氟化物和氨

    公开(公告)号:US20050145572A1

    公开(公告)日:2005-07-07

    申请号:US10749954

    申请日:2003-12-31

    Abstract: A process for fluoride removal from wastewater streams produced during industrial operation for further industrial use or to comply with environmental regulations. The process segregates the removal of fluoride and fluorosilicate ions, from the totality of ions in the waste water stream, thus improving treatment efficiency and reducing costs. Ion-exchange chromatography is used to remove the fluoride and fluorosilicate ions by passing the wastewater stream through one or more columns that contain a charged resin which selectively binds cations/anions in the stream. The fluoride ions are washed from the column and then collected for removal or use in other processes.

    Abstract translation: 用于在工业运行期间产生的用于进一步工业用途或符合环境规定的废水流中氟化物除去的过程。 该方法从氟化物和氟硅酸盐离子的去除中排除了废水流中离子的总量,从而提高了处理效率并降低了成本。 离子交换色谱用于通过使废水流通过一个或多个含有带电树脂的柱,以选择性地结合物流中的阳离子/阴离子来除去氟化物和氟硅酸盐离子。 氟化物离子从柱中洗涤,然后收集用于除去或用于其它方法。

    Electrowinning cell incorporating metal ion filtration apparatus
    8.
    发明授权
    Electrowinning cell incorporating metal ion filtration apparatus 有权
    电泳细胞结合金属离子过滤装置

    公开(公告)号:US06733653B2

    公开(公告)日:2004-05-11

    申请号:US09916062

    申请日:2001-07-26

    CPC classification number: C25C7/06 C25C7/00

    Abstract: The present invention relates to an electrowinning cell adapted to recover metal ions from a solution as their corresponding elementary metals. The electrowinning cell includes a reservoir and a filter in fluid communication with the reservoir. The filter is operative to receive a solution containing metal ions from a location proximate to the cathode and to retain a first portion of the solution having a first concentration of metal ions and to remove a second portion of the solution having a second concentration of metal ions lower than the first concentration. The electrowinning cell additionally includes return means operative to return the first portion of the solution to the reservoir. The present invention also relates to a method of concentrating metal ions in a solution for use in an electrochemical cell and to a system for reducing metal ions in a solution to their corresponding elementary metals.

    Abstract translation: 本发明涉及一种适用于从溶液中回收金属离子作为其相应的基本金属的电解冶金池。 电解冶金池包括储存器和与储存器流体连通的过滤器。 该过滤器可操作以从靠近阴极的位置接收含有金属离子的溶液,并且保留溶液的第一部分具有第一浓度的金属离子,并除去具有第二浓度金属离子的溶液的第二部分 低于第一浓度。 电解冶金池还包括可操作地将溶液的第一部分返回到储存器的返回装置。 本发明还涉及将金属离子浓缩在用于电化学电池的溶液中的方法以及用于将溶液中的金属离子还原成其相应的基本金属的系统。

    Fischer-tropsch process using fibrous composite catalytic structures having at least three solid phases
    9.
    发明授权
    Fischer-tropsch process using fibrous composite catalytic structures having at least three solid phases 失效
    使用具有至少三个固相的纤维复合催化结构的费 - 托法

    公开(公告)号:US08598240B2

    公开(公告)日:2013-12-03

    申请号:US13680416

    申请日:2012-11-19

    Abstract: A Fischer-Tropsch process for converting a syngas to hydrocarbon products in the presence of a permeable composite fibrous catalytic sheet comprised of at least three distinct solid phases. A first solid phase is a 3-dimensional porous network of a non-conductive porous ceramic material. A second solid phase is an electrically conductive phase comprised of randomly oriented electrically conductive fibers. A third phase is comprised of catalytic particles dispersed on said 3-dimensional porous network, said conductive fibers, or both. A fourth phase can be present, which fourth phase is comprised one or more conductive species or one or more non-conductive species embedded in said first solid phase.

    Abstract translation: 在由至少三个不同固相组成的可渗透复合纤维催化片存在下,将合成气转化为烃产物的费 - 托法。 第一固相是非导电多孔陶瓷材料的三维多孔网络。 第二固相是由随机取向的导电纤维组成的导电相。 第三相包括分散在所述三维多孔网络,所述导电纤维或两者上的催化颗粒。 可以存在第四相,该第四相包含一种或多种导电种类或嵌入所述第一固相中的一种或多种非导电物质。

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