Bleaching and delignifying cellulosic pulp using caroate/caro's acid solution
    3.
    发明授权
    Bleaching and delignifying cellulosic pulp using caroate/caro's acid solution 失效
    使用胡萝卜/卡罗酸溶液漂白和脱木质纤维素浆

    公开(公告)号:US06511578B2

    公开(公告)日:2003-01-28

    申请号:US09381288

    申请日:1999-09-21

    IPC分类号: D21C910

    CPC分类号: D21C9/166

    摘要: The invention relates to a method of bleaching and/or delignifying cellulose, in which (a) a sodium hydroxide solution and a peroxydisulphate solution are first of all produced by electrolysis of a sulphate, (b) the peroxydisulphate solution is converted by hydrolysis into a Caro's acid/caroate solution, (c) said Caro's acid/caroate solution is left to cool and (d) used immediately as a bleaching solution for bleaching and/or delignifying cellulose, the Caro's acid/caroate solution becoming neutralised upon introduction into the bleaching solution.

    摘要翻译: 本发明涉及一种漂白和/或脱木质纤维素的方法,其中(a)氢氧化钠溶液和过氧化二硫酸盐溶液首先通过电解硫酸盐产生,(b)过氧化二硫酸盐溶液通过水解转化成 Caro酸/胡萝卜素溶液,(c)Caro酸/胡萝卜素溶液冷却,(d)立即用作漂白和/或脱木素纤维素漂白溶液,Caro酸/胡萝卜素溶液在引入漂白后中和 解。

    Filter press electrolysis cell
    4.
    发明授权
    Filter press electrolysis cell 失效
    过滤器电解槽

    公开(公告)号:US5082543A

    公开(公告)日:1992-01-21

    申请号:US605650

    申请日:1990-10-30

    CPC分类号: C25B9/20

    摘要: The present invention provides an electrolysis cell of the filter press type for the production of peroxy and perhalogenate compounds comprising alternatingly arranged cathodes and anodes provided with electrolyte feeds, wherein the cathodes (1) and anodes (2) consist of right parallelpiped-shaped hollow bodies between which are present frame-shaped seals (3) and which, via these seals (3), are connected together in a liquid-tight manner and insulated from one another to give a cell pile, the cathode hollow bodies (1) are liquid- and gas-permeable, the anode hollow bodies (2) possess, above and below a platinum layer, openings for the introduction and removal of the anolyte and the effective anode surface is formed by the platinum metal layer of a composite anode comprising a valve metal substrate and a platinum layer present thereon which is obtainable by the hot isostatic pressing of a platinum foil on to a valve metal carrier.

    摘要翻译: 本发明提供了一种用于生产过氧和全卤酸盐化合物的压滤型电解槽,其包括交替布置的阴极和设有电解质进料的阳极,其中阴极(1)和阳极(2)由右平行琵琶形中空体 它们是现有的框状密封件(3),并且通过这些密封件(3)以液密方式连接在一起并彼此绝缘以产生电池堆,阴极中空体(1)是液体 - 和透气的,阳极中空体(2)在铂层的上方和下方具有用于引入和去除阳极电解液的开口,并且有效阳极表面由复合阳极的铂金属层形成,所述复合阳极包括阀 金属基板和存在于其上的铂层,其可通过将铂箔热等静压到阀金属载体上而获得。

    Valve metal/platinum composite electrode
    5.
    发明授权
    Valve metal/platinum composite electrode 失效
    阀门金属/铂金复合电极

    公开(公告)号:US4995550A

    公开(公告)日:1991-02-26

    申请号:US380155

    申请日:1989-07-13

    IPC分类号: C25B11/00 C25B11/04 C25B11/10

    CPC分类号: C25B11/0473 Y10T29/49115

    摘要: A composite electrode based on a valve metal with a layer of a platinum foil securely adhering thereto is produced by hot isostatic pressing of the valve metal base and platinum foil between separating sheets; the separating sheet which comes in contact with the platinum foil during hot isostatic pressing is a metal with a melting point of at least 100.degree. C. above the hot isostatic pressing temperature.

    摘要翻译: 通过在分离片材之间对阀金属基底和铂箔进行热等静压来制造基于具有牢固地附着在其上的铂箔层的阀金属的复合电极; 在热等静压过程中与铂箔接触的分离片是比等温压制温度高至少100℃的金属。

    CURRENT CONDUCTOR FOR A GALVANIC CELL
    7.
    发明申请
    CURRENT CONDUCTOR FOR A GALVANIC CELL 审中-公开
    电流细胞的电流导体

    公开(公告)号:US20100304211A1

    公开(公告)日:2010-12-02

    申请号:US12747764

    申请日:2008-12-08

    摘要: Plate-shaped current conductor (12) for a galvanic cell, with a first surface (16) and a second surface (17), which essentially face each other, and are connected with each other via a first side surface (18) and a second side surface (19), characterized in that the plate-shaped current conductor has, in the area of the first and/or second side surface (18, 19), a segment, which has a thickness (d), which is reduced in regard to its cross section vis-à-vis the thickness (D) as defined by first and second surface (16, 17) of the current conductor, which segment extends at least substantially over a sealing area (14) of the current conductor.

    摘要翻译: 具有第一表面(16)和第二表面(17)的原电池的板状电流导体(12),其基本上彼此相对,并且经由第一侧表面(18)和 第二侧表面(19),其特征在于,所述板状电流导体在所述第一和/或第二侧表面(18,19)的区域中具有减小的厚度(d)的段 关于其横截面相对于由当前导体的第一和第二表面(16,17)限定的厚度(D),该段至少基本上延伸到电流导体的密封区域(14)上方 。

    Bipolar multi-purpose electrolytic cell for high current loads
    8.
    发明授权
    Bipolar multi-purpose electrolytic cell for high current loads 有权
    用于高电流负载的双极多功能电解槽

    公开(公告)号:US07018516B2

    公开(公告)日:2006-03-28

    申请号:US10258386

    申请日:2001-05-09

    IPC分类号: C25B9/06 C25B1/28

    CPC分类号: C25B9/04 C25B9/206

    摘要: A bipolar multi-purpose electrolytic cell for high current loads has a frame, two electrode edge plates with metal electrode sheet, and power supply and of bipolar plates. Each includes a plastic electrode base body with electrode rear spaces and/or with coolings spaces that are incorporated on one or both sides: incorporated supply and discharge lines for the electrolyte solutions and the cooling medium, metal electrode sheets which are applied to both sides of the base body and are solid and/or perforated in the electrochemically active area: electrolyte sealing frames, which rest on the solid metal electrode sheets and which are made of flexible plastic, and: ion exchanger membranes, which rest on the perforated metal electrode sheets and/or on the electrolyte sheets and/or on the electrolyte sealing frames and which are provided for separating the electrode spaces.

    摘要翻译: 用于高电流负载的双极多功能电解槽具有框架,具有金属电极片的两个电极边缘板以及双极板的电源和电源。 每个都包括塑料电极基体,其具有电极后部空间和/或与一侧或两侧结合的冷却空间;用于电解质溶液和冷却介质的并入供应和排出管线,施加到两侧的金属电极片 基体在电化学活性区域中是固体和/或穿孔的:电解质密封框架,其位于固体金属电极片上,并且由柔性塑料制成;以及离子交换膜,其位于穿孔金属电极片上 和/或在电解质片和/或电解质密封框上,并且用于分离电极空间。

    Process for chemically oxidizing highly concentrated waste waters
    9.
    发明授权
    Process for chemically oxidizing highly concentrated waste waters 失效
    化学氧化高浓度废水的方法

    公开(公告)号:US5538636A

    公开(公告)日:1996-07-23

    申请号:US227326

    申请日:1994-04-14

    摘要: A process to purify waste waters using chemical oxidation and Fenton's reagent by the action in the acid range of hydrogen peroxide and iron(II) compounds and subsequent precipitation in the weakly acid to alkaline range of the iron(III) compounds, said process being characterized in that the sludge containing iron(III) accumulating in addition to the purified waste water is reduced electrolytically back into iron(II) compounds and in that the sludge so reduced is fed back into the process. The process of the invention allows extensive purification of highly concentrated waste waters and furthermore problems arising with the treatment and elimination of the Fenton sludge can be circumvented.

    摘要翻译: 通过在过氧化氢和铁(II)化合物的酸性范围内的作用,随后在铁(III)化合物的弱酸性至碱性范围内沉淀,使用化学氧化和芬顿试剂净化废水的方法,所述方法的特征 含有除纯化废水之外积累的铁(III)的污泥电解还原成铁(II)化合物,因此减少的污泥被反馈进入该过程。 本发明的方法允许高度浓缩的废水的大量纯化,此外可以避免在处理和消除芬顿污泥时产生的问题。