Electrolysis cell
    1.
    发明授权
    Electrolysis cell 失效
    电解池

    公开(公告)号:US06217728B1

    公开(公告)日:2001-04-17

    申请号:US09404536

    申请日:1999-10-05

    IPC分类号: C25B900

    摘要: An electrolysis cell for carrying out chemical reactions include an electrolyte chamber (2) with a fixed-bed electrode (2F), a gas chamber (1) filled with filling bodies (1F), a gas diffusion electrode with an ion-exchanging separator (3) applied on the electrolyte-chamber side. The ion-exchanging separator is applied onto the gas diffusion electrode by a method comprising a single or multiple application of a solution of an ion-exchanging material in a solvent onto the electrocatalytically active layer of the gas diffusion electrode and at least partial evaporation of the solvent after each coating. The electrolysis cell may be used for the oxidation and reduction of organic or inorganic components dissolved in the electrolyte.

    摘要翻译: 用于进行化学反应的电解池包括具有固定床电极(2F)的电解液室(2),填充有填充体(1F)的气室(1F),具有离子交换隔板的气体扩散电极 3)施加在电解质室侧。 离子交换分离器通过包括在溶剂中将离子交换材料的溶液单独或多次施加到气体扩散电极的电催化活性层上并将至少部分蒸发的方法施加到气体扩散电极上 每次涂布后的溶剂。 电解槽可用于氧化还原溶解在电解质中的有机或无机成分。

    Process for the production of alkali metal- and ammonium peroxodisulfate
    2.
    发明授权
    Process for the production of alkali metal- and ammonium peroxodisulfate 有权
    生产碱金属和二氧化硫酸铵的方法

    公开(公告)号:US06503386B2

    公开(公告)日:2003-01-07

    申请号:US09825352

    申请日:2001-04-04

    IPC分类号: C25B128

    CPC分类号: C25B1/285

    摘要: The invention relates to a process for the production of a peroxodisulfate, such as ammonium-, sodium- and potassium peroxodisulfate by anodic oxidation of an electrolyte containing a sulfate and/or hydrogen sulfate. The disadvantages of the conventional platinum anodes used for this hitherto can be avoided by using as the anode a diamond film mounted on a conductive carrier and made conductive by doping with a tri- or pentavalent element and by not adding a promoter to the anolyte.

    摘要翻译: 本发明涉及通过含有硫酸盐和/或硫酸氢盐的电解质的阳极氧化来生产过二硫酸盐如过硫酸铵,过硫酸钠和钾的方法。 迄今使用的常规铂阳极的缺点可以通过使用安装在导电载体上的金刚石膜作为阳极并通过掺杂三价或五价元素并通过不向阳极电解液添加助催化剂而导电来避免。

    Process for the electrochemical preparation of hydrogen peroxide
    3.
    发明授权
    Process for the electrochemical preparation of hydrogen peroxide 失效
    过氧化氢电化学制备工艺

    公开(公告)号:US06685818B2

    公开(公告)日:2004-02-03

    申请号:US09961401

    申请日:2001-09-25

    IPC分类号: C01B1501

    CPC分类号: C25B1/30

    摘要: A process for the electrochemical preparation of hydrogen peroxide, in particular an aqueous hydrogen peroxide solution, by the electrochemical reaction of oxygen and hydrogen in a fuel cell. By increasing the thickness of the membrane layer in a membrane electrode unit (MEU) in the fuel cell, it is possible to substantially increase the concentration of H2O2 in the aqueous hydrogen peroxide solution obtained at the cathode.

    摘要翻译: 通过氧气和氢气在燃料电池中的电化学反应来电化学制备过氧化氢,特别是过氧化氢水溶液的方法。 通过增加燃料电池中的膜电极单元(MEU)中的膜层的厚度,可以显着增加在阴极处获得的过氧化氢水溶液中的H 2 O 2的浓度。