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    • 2. 发明专利
    • JPS4836957A
    • 1973-05-31
    • JP8914372
    • 1972-09-07
    • C25B9/00B01J19/08C02F1/46C02F1/461C02F1/463C02F1/465C02F1/467C02F1/469C02F1/76C25B1/26C25B9/06C01B7/06
    • 1396019 Electrolyzers ENGELHARD MINERALS & CHEMICALS CORP 7 Sept 1972 [8 Sept 1971 20 March 1972] 41666/72 Heading C7B An electrolytic cell for continuous electrolysis of sodium chloride to form sodium hypochlorite, e.g. for addition to water supplies, comprises a cylindrical bi-polar electrode 24 and coaxial cylindrical electrodes 22 and 23 to form a continuous annular passage between the bi-polar electrode and the mono polar electrodes. As shown the electrodes are supported by insulating members 4, 5, 6 (and 30) and 7 (and 31) which also provide electrolyte inlets 39, 40 and outlets 41, 42. Alternatively the cell may be arranged with the bi-polar electrode exterior to the anode and cathode. The electrodes may be of Ti; the anode and anodic part of the bi-polar electrode being coated with a platinum metal, e.g. Pt, Rh or Ir or with ruthenium oxide. A plurality of cells may be connected in series by bolts 18-21. The two halves of the series may be electrically connected in parallel so that electrolyte enters and leaves the series at zero potential, with the mid-point of the series being at the highest potential Fig. 3 (not shown).
    • 3. 发明授权
    • Electrolytic production of chlorine dioxide, chlorine, alkali metal hydroxide and hydrogen
    • 二氧化氯,氯,碱金属氢氧化物和氢气的电解生产
    • US3904496A
    • 1975-09-09
    • US42999774
    • 1974-01-02
    • HOOKER CHEMICALS PLASTICS CORP
    • HARKE CYRIL JENG JEFFREY D
    • C25B1/46B01D61/44B01D61/50B01D61/54C08J5/22C25B1/34C25B13/08C01D1/06C01B7/06
    • C25B1/34
    • Chlorine dioxide, chlorine, alkali metal hydroxide and hydrogen are produced from hydrogen chloride, alkali metal chlorate, alkali metal chloride and water in a three compartment electrolytic cell in which a buffer compartment between the anode and cathode compartments is separated from the anode compartment by an anion-active permselective membrane and from the cathode compartment by a cation-active permselective membrane. Hydrogen chloride is fed to the anode compartment, aqueous alkali metal chlorate and chloride are fed to the buffer compartment and water is fed to the cathode compartment, with chlorine dioxide and chlorine being taken off from the anode compartment while hydrogen and alkali metal hydroxide substantially free of alkali metal chloride are produced in and removed from the cathode compartment. The products of the process are obtained in a single vessel in forms suitable for use in pulping wood and bleaching wood pulp without production of undesirable byproducts that create disposal problems or require further processing for conversion to useful products.
    • 二氯二氧化物,氯气,碱金属氢氧化物和氢气由氯化氢,碱金属氯化物,碱金属氯化物和水在三室电解池中产生,其中阳极室和阴极室之间的缓冲室与阳极室分离, 阴离子活性渗透选择膜和阳离子活性渗透选择膜。 将氯化氢加入到阳极室中,将碱金属氯酸盐和氯化钠水溶液加入到缓冲室中,并将水送入阴极室,二氧化氯和氯从阳极室取出,而氢和碱金属氢氧化物基本上释放 的碱金属氯化物在阴极室中产生并从阴极室排出。
    • 8. 发明授权
    • Electrolytic manufacture of dithionites
    • 连二电极的电解制造
    • US3905879A
    • 1975-09-16
    • US41161373
    • 1973-11-01
    • HOOKER CHEMICALS PLASTICS CORP
    • ENG JEFFREY DHARKE CYRIL J
    • C25B1/14C25B1/46C01B7/06C01B17/66C01D1/06
    • C25B1/46C25B1/14
    • Dithionites are made by a process which begins with the production of high concentration, chloride-free sodium hydroxide solution and chlorine at a high current efficiency from a threecompartment electrolytic cell having membranes of a cation-active permselective membrane material separating anode and cathode compartments from a buffer compartment. Hydroxide ions migrating into the buffer compartment from the cathode compartment are converted to sulfite by reaction with sulfur dioxide, improving the current efficiency of the three-compartment cell, and the sulfite is removed. Subsequently, the sulfite resulting and additional sulfur dioxide are fed to the cathode compartment of a two-compartment electrolytic cell wherein the anode and cathode compartments are separated by a cation-active permselective membrane and in which chloride solution is being electrolyzed to chlorine at the anode and sulfite solution is being electrolyzed to dithionite at the cathode.
    • 连二亚硫酸盐通过一种方法制备,该方法开始于以高电流效率生产高浓度,无氯化氢的氢氧化钠溶液和氯,该电解槽具有分离阳极和阴极室的阳离子活性渗透选择膜材料膜的三室电解槽 从缓冲室。 通过与二氧化硫的反应将从阴极室迁移到缓冲室中的氢氧化物离子转化为亚硫酸盐,提高三室电池的电流效率,并除去亚硫酸盐。 随后,将产生的亚硫酸盐和另外的二氧化硫进料到两室电解池的阴极室中,其中阳极和阴极室由阳离子活性渗透选择膜分离,其中氯化物溶液在阳极被电解为氯 亚硫酸盐溶液在阴极被电解为连二亚硫酸盐。
    • 10. 发明授权
    • Electrochemical cells
    • 电化学细胞
    • US3856652A
    • 1974-12-24
    • US31846372
    • 1972-12-26
    • NAT RES DEV
    • FLEISCHMANN MPLIMLEY RTENNAKOON CKING COLDFIELD J
    • C25B3/02C25B9/00C25B9/06B01K3/04C01B7/06
    • C25B9/063
    • A multi-bipolar electrode type of electrochemical cell which is adapted for operation with flowing electrolyte, comprises a plurality of bipolar electrode units, which can be, for example, rods, such as hollow rods, preferably horizontal, in vertical column, or groups of bipolar electrode units, which can be of geometrical shape, such as cylinders or rings, such as Lessing rings, arranged in horizontal layers one below the other separated by openwork, electrically insulating, spacers, such as nylon net. It is arranged that the electrolyte flows to bridge the spaces between adjacent electrode units, or groups of electrode units, but that any electrolyte in contact with the remainder of each electrode unit surface is kept to a very thin film. In this way electronic continuity through the cell is maintained by means of the electrolyte bridges and each electrode unit functions as a bipolar electrode.
    • 适用于流动电解液操作的多极双极电极型电化学电池包括多个双极电极单元,其可以是例如棒,例如中空棒,优选水平的,垂直列的,或者 可以具有几何形状的双极电极单元,例如气缸或环,例如Lessing环,布置在水平层中,一个在另一个下方,由镂空,电绝​​缘,间隔物,如尼龙网隔开。 布置为电解质流动以桥接相邻电极单元或电极单元组之间的空间,但是与每个电极单元表面的其余部分接触的任何电解质保持为非常薄的膜。 以这种方式,通过电解质桥保持通过电池的电子连续性,并且每个电极单元用作双极电极。