• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1503799 Bi-polar electrolytic cells ASAHI KASEI KOGYO KK 24 Sept 1975 [9 Oct 1974] 39122/75 Heading C7B A bi-polar system electrolytic cell for producing Cl 2 , H 2 and NaOH has cell units arranged in series each comprising a partition wall 3 made of explosion-bonded Ti plate 1 and Fe plate 2 dividing the cell unit into anode and cathode chambers 6, 9 with an anode 4 of Ti substrate having a Pt group metal and/or one or more oxides thereof coated thereon electrically connected e.g. by Ti plate 5 to the Ti plate 1 and a cathode 7 of Fe electrically connected e.g. by Fe plate 8 to the Fe plate 2; cation exchange membranes 17 are interposed between the cathode and anode chambers of neighbouring cell units; and space is provided both between the anode and the cathode and preferably the partition wall. The anode or cathode may be a porous e.g. perforated plate, parallel rods, net or expanded plate. An Fe frame 10 and Ti lining 11 may be welded with respective Fe and Ti sides of the partition wall. The anode and cathode chambers may be provided with respective Ti and Fe supply and discharge nozzles 12, 14 and 13, 15. Ti includes Ti alloys; and Fe includes Fe alloys, e.g. containing Ni, Cr, Mo and C, and may be plated with Ni from a NiSO 4 / NiCl 2 /H 3 BO 3 bath containing ammonium thiocyanate. The Ti (alloy) anode may be coated with a eutectic mixture of the Pt group metal oxide with another metal oxide e.g. of Ti, Zr, Si, Al and/or B. Gases may be discharged backside of porous anodes and cathodes. The membranes 17 e.g. with ethylene-propylene rubber packing 18 may include F-containing resins having cation exchange groups e.g. sulphonic, carboxylic or phosphoric acid with styrene-divinyl benzene cross-linked substrate polymers. The analyte e.g. NaCl and catholyte e.g. NaOH may be separately recirculated.
    公开号:SU1291029A3
    申请号:SU752177557
    申请日:1975-10-08
    公开日:1987-02-15
    发明作者:Секо Маоми；Огава Синсаку；Адзики Нобуо；Есида Мунео
    申请人:Асахи Касеи Когио Кабусики Кайся (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to bipolar electrodes used in the construction of electrolyzers for the production of chlorine and alkali.
    The purpose of the invention is to increase the service life of the electrode due to the hydrogenation of titanium.
    Figure 1 shows a bipolar electrode, a cross section; figure 2 is the same, the General view, given by the anode,
    The base 1 of the bipolar electrode is made of titanium sheet 2 and iron sheet-3, connected by melody in an explosive manner with subsequent hot rolling. The base anode 5 of a titanium cut-through sheet j coated with a layer of oxides of metals of the platinum group is attached to the base 1 with a titanium bracket 4. There is a gap that forms during assembly; anode chamber b
    The external cathode 7 is made of a slotted iron sheet connected to the iron sheet of the base 1 by means of an iron bracket 8, the gap forms a cathode chamber 9. The circumference of the anode 6 and cathode 9 chambers is arranged by an iron frame 10. The surface 7e iron rag-at, which can in contact with the anolyte, lined with titanium. The iron frame 10 is welded with the iron portion of the base around its circumference. The titanium lining 11 is also welded to the titanium sheet 2 of the base around its circumference. Thus, the anode chamber is completely separated from the cathode chamber. In the anode chamber there are inlet 12 and outlet 13 holes for the supply and discharge of anolyte, made of titanium. The inlet chamber 14 contains inlet 14 and outlet 15 apertures for the supply and discharge of catholyte, made of iron. In frame III there can be an 0-shaped channel 16, which serves for liquid sealing. The cation-exchange membrane 17 is located as a partition between the cathode 7 and anode 5. The gasket 18, located between the iron frame 10 and the cation-exchange membrane 17, is used to adjust the interelectrode distance and / or for electrical insulation purposes. In the cathode and anode chambers, control plates (not shown) can be used, which serve to improve the mixing effect910292
    no electrolyte gas. At the top of the cathode and anode chambers can be located collectors (not shown), which serve to separate
    2 gas from the liquid.
    Several individual electrodes described above are connected in series, and the cation exchange membranes are located respectively
    0 between them. Along the edges there is an electrode having only an anode chamber and a terminal for current input, and an electrode having only a cathode chamber and a terminal for current input. So
    15, the individual electrodes are connected to each other, are waterproof., Do not leak and form a bipolar electrolyzer. For convenience of construction on the side
    On the 20 sides of the iron frame 10 of the electrolysis cell there are handles 19s which are mounted on the press with: Ende, which has a side bar.
    The cell can be used for various purposes. For example, it is particularly suitable for the production of gaseous chlorine, gaseous hydrogen, caustic soda when using as the anolyte a water solution of sodium chloride and, as a catholyte, an aqueous solution of caustic soda.
    At the ke, in the electrolyzer, the base 1, having 1.2 m in length and 2.4 m, is made of explosive iron sheet and titanium sheet subjected to hot rolling after the connection. The titanium sheet is 1 mm wide and the iron sheet 9 mm wide. The porous titanium sheet is made of 1.5 mm thick milled titanium plate with holes occupying 60% of the area and covered with. 5 (u over the thickness of a eutectic mixture containing, mole,%: ruthenium oxide 60, titanium oxide 30; zirconium oxide 10, and thus the anode was obtained. To obtain a gap 25 mm wide, which forms the anode chamber between the anode 5 and titanium base, titanium bracket 4; having a thickness of 4 mm, a width of 25 mm and a length of 1.2 m, is located with an interval of 10 cm. This titanium bracket is placed vertically, so that it does not interfere with gas mixing, and has 10 holes approximately in diameter 10 mm in order to provide a horizontal variable;, 5
    40
    45
    50
    S5
    fluid sewing. The titanium bracket 4, the base sheet 2 and the anode 5 are connected to each other by welding so as to reduce the electrical resistance as much as possible. As the cathode, a chute of a porous plate with holes occupying 60% of the area and made of an iron plate with a thickness of 1.6 mm is used. To provide a 45 mm gap, which forms the cathode chamber 9 between the cathode 7 and the partition, an upright iron bracket 8 is used, having a thickness of 6 mm, a width of 45 mm and a length of 1.2 m and having 10 holes with a diameter of approximately 10 mm. The cathode 7, the iron bracket 8 and the iron base sheet 3 are connected to each other by welding, whereby the electrical resistance is reduced as much as possible. An iron frame with a thickness of 16 mm is used, located around the base 1, and the surface of this frame, in contact with the anolyte, is lined with titanium plates 2 mm thick. The distance between the anode 5 and the cathode 7 is maintained at about 2 mm by using an ethylene-propylene rubber gasket 2 mm thick. As a cation-exchange resin, a sulphonic acid resin is used, made of a substrate of fluorine resin, reinforced with a coating of fluorine fiber.
    A bipolar electrolytic collector is obtained by connecting individual electrodes and placing them on the edges of an electrolytic cell having only a cathode chamber and an electrolytic cell having only an anode chamber, after which the press with a side rod is pressed.
    An aqueous solution of sodium chloride is supplied from the tank with the anolyte through parallel pipes of one another to the liquid inlets 12 of each anode chamber. The anolyte, containing a solution of sodium chloride and chlorine gas, leaves the passage through the liquid outlet 13 Hj, also parallel to one another, and returns to the reservoir with the anolyte.
    An aqueous solution of caustic soda is supplied from a tank with catholyte through parallel pipes of one another to the liquid inlets 14 of each cathode chamber, and 20% by weight of an aqueous solution of caustic soda and gaseous hydrogen are fed through liquid outlets 15 with catholyte.
    When passing a direct current of 14000 A through the described two-pole electrolyzer with an electrolyte temperature of 92 ° C, the voltage applied to each electrolyzer is only 3.6 V. The voltage drop between the anode 5 and cathode 7 on the partition wall is only a few millivolts, which clearly shows the advantages of the construction with a baffle made in an explosive way.
    The proposed design uses iron and titanium plates as the base 1, which are connected by an explosive method with subsequent hot rolling, compared to the known electrode there is no cold rolling after the hot one, due to which hydrogenation of the titanium base sheet goes to a lesser extent than when using and hot and cold rolling.
    Bipolar electrode bases were made of titanium and iron sheets, one base was processed by hot rolling and the other by hot rolling and then cold rolling. They were used as the basis of a bipolar electrode using a current of 5000 A and a temperature of 90 ° C.
    The amount of hydrogen contained in the titanium plate, which is part of the base, after 6000 hours was 140 and 970 million ppm, respectively, for hot rolled and hot rolled and cold rolled plates, respectively.
    In addition, the implementation of the remote electrodes also allows the process to be conducted on the remote electrode, and not on a titanium base, which also reduces hydrogen loading of the titanium base sheet.
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    Bipolar electrode including. a base made of iron and titanium sheets interconnected in an explosive manner followed by
    hot rolling, characterized in that with increasing electrode life by eliminating hydrogenation of titanium, the bipolar electrode is provided with a remote anode from a titanium slug sheet covered with a layer of platinum metal oxides connected with a titanium bracket to a titanium base sheet and with a portable cathode of iron notched sheet connected to the iron base sheet.
    nineteen
    Editor N. Kishtulints Order 7920/60
    Tehred. Khodanich Proofreader A. Obruchar
    Circulation 613 Subscription VNIIPI USSR State Committee
    for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5
    Production and printing company, Uzhgorod, st. Project, 4
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    同族专利:
    公开号 | 公开日
    BR7506536A|1976-08-17|
    DE2545339C2|1982-04-01|
    NL165511B|1980-11-17|
    NL7511876A|1976-04-13|
    CA1053177A|1979-04-24|
    SE7511257L|1976-04-12|
    DE2545339A1|1976-04-22|
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    GB1503799A|1978-03-15|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3441495A|1966-05-20|1969-04-29|Electric Reduction Co|Bipolar electrolytic cell|
    US3451914A|1966-08-31|1969-06-24|Electric Reduction Co|Bipolar electrolytic cell|
    GB1348785A|1970-05-26|1974-03-20|Ici Ltd|Bipolar cell|
    US3759813A|1970-07-17|1973-09-18|Ppg Industries Inc|Electrolytic cell|
    US3755108A|1971-08-12|1973-08-28|Ppg Industries Inc|Method of producing uniform anolyte heads in the individual cells of a bipolar electrolyzer|
    JPS509384B2|1971-09-30|1975-04-12|
    BE793045A|1971-12-21|1973-06-20|Rhone Progil|BIPOLAR ELECTRODES|
    BE793281A|1971-12-23|1973-06-22|Rhone Progil|FRAMES FOR ELECTROLYTIC CELLS OF THE FILTER-PRESS TYPE|
    BE781959A|1972-04-12|1972-07-31|Solvay|BIPOLAR CELL,|JPS5929677B2|1976-11-19|1984-07-21|Asahi Glass Co Ltd|
    JPS5421641U|1977-07-15|1979-02-13|
    DE2816440A1|1978-04-15|1979-10-25|Uhde Gmbh|ELECTROLYSIS CELL|
    JPS5848366Y2|1978-09-13|1983-11-04|
    GB2051870B|1979-06-07|1983-04-20|Asahi Chemical Ind|Method for electrolysis of aqueous alkali metal chloride solution|
    FR2484464B1|1980-02-04|1982-08-06|Electricite De France|
    JPS6340874B2|1981-02-19|1988-08-12|Tokuyama Soda Kk|
    JPS5732393A|1981-06-25|1982-02-22|Asahi Glass Co Ltd|Filter press type electrolytic cell|
    JPS59133384A|1983-01-19|1984-07-31|Toyo Soda Mfg Co Ltd|Electrolytic cell|
    DE3342449A1|1983-11-24|1985-06-05|Uhde Gmbh, 4600 Dortmund|ELECTROLYTIC CELL FOR THE ELECTROLYSIS OF AQUEOUS HALOGENIDE-CONTAINING ELECTROLYT|
    JPS6135277B2|1985-01-10|1986-08-12|Kanegafuchi Chemical Ind|
    JPH0674513B2|1985-10-23|1994-09-21|旭化成工業株式会社|Bipolar electrolytic cell unit|
    GB8530893D0|1985-12-16|1986-01-29|Ici Plc|Electrode|
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    GB8626629D0|1986-11-07|1986-12-10|Ici Plc|Electrolytic cell|
    JPH02130873U|1989-04-05|1990-10-30|
    US5225061A|1991-05-24|1993-07-06|Westerlund Goethe O|Bipolar electrode module|
    JP3696137B2|2000-09-08|2005-09-14|株式会社藤田ワークス|Method for producing electrolytic cell unit and electrolytic cell unit|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP49116695A|JPS5232866B2|1974-10-09|1974-10-09|
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