• 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:
    An electrode for use in electrolysis of an aqueous solution of a metal halide such as an alkali metal or alkaline earth metal halide comprising: (1) an electroconductive substrate, such as of titanium; and (2) a coating on the substrate, where the coating comprises: (a) 5 to 75 mole percent of iridium oxide; (b) 5 to 70 mole percent of at least one metal oxide selected from the group consisting of oxides of titanium, tantalum and niobium; and (c) 20 to 70 mole percent of at least one of a member selected from the group consisting of tin oxide and cobalt oxide, with the sum of the mole percent of the iridium oxide (a) plus the mole percent of the metal oxide (b) being at least 30 mole percent, and a method of making the same.
    公开号:SU1056911A3
    申请号:SU792740852
    申请日:1979-03-23
    公开日:1983-11-23
    发明作者:Сато Хидео；Симамуне Такаюки
    申请人:Пермелек Электроуд Лтд (Фирма)；
    IPC主号:
    专利说明:

    Bp
    Uh
    : o The invention relates to the electrodynamic production, to the electrodes used in the electrolysis process of the correct solutions of metal halides, and can be used in the chemical industry. The electrode for electrochemical processes is known, in particular for the electrolysis of aqueous solutions (ald genes of metals, containing a base of a valve metal with an active mass of oxide or a mixture deposited on it, metal oxides: platinum, iridium, rhodium, palladium, ruthenium, rhenium and osmium, as well as an oxide or a mixture of metal oxides: manganese, chromium, lead, cobalt, iron, titanium, tantalum, zirconium, silicon in quantities less than 50 wt.% based on the weight of oxide of a mixture of oxides of noble metal oxides ij. The disadvantage of the known electrode is its not Long service life, especially during the electrolysis of dilute solutions of metal halides at low temperature. The aim of the invention is to increase the service life of the electrode during the electrolysis of dilute solutions of metal halides, such as seawater. The goal is achieved by the fact that the electrode containing a base of valve metal coated on it the surface of the active mass containing iridium oxide, valve metal oxide and non-precious metal oxide contains oxide as non-precious metal oxide . L tin in the following ratios of components: mol%. Iridium oxide 5-75 Anticyl metal oxide 5-70 Tin oxide 20-70 The base can be made of titanium, tantalum, nocbi, zirconium or their alloy. The most preferred material is titanium,. It is also possible to use various known methods of forming a coating on an electrically conductive substrate. A preferred method of thermal decomposition, in accordance with which a solution containing thermally decomposable components of the coating is subjected to heat treatment in an oxidizing -. atmosphere to convert compounds to the oxide form. This electrode has a high corrosion resistance and the ability to maintain a sufficient difference between the chlorine and oxygen release potentials during the electrolysis of dilute solutions, even at temperatures below 20 ° C. These characteristics deteriorate if the amount of each component exceeds the specified interval. The table shows data on the electrodes within the intervals (examples 1-4), on the electrodes outside the interval (examples 5-9) and data on known electrodes (examples 10-11). , The process is carried out with anode overvoltage during electrolysis in a dilute solution (aqueous solution 30 g / l WaC) at 5 ° C and 15 A / dm, as follows from the presented data, the application of the invention significantly reduces the cost of electrolysis of dilute solution i. The ditch of metal chlorides increases the service life of the electrodes.
    18.7
    34.3 70.6 6.8 34.7
    9.2 25.2
    13.4 80.5
    9.3 70.5
    11.4 9.4
    10.5
    1500
    1200
    1700
    1250
    400
    420
    350
    6.5
    too
    45
    55
    Table continuation
    21.2
    1.50
    200 1.55
    , 150 1.54 170
    权利要求:
    Claims (1)
    [1]
    1. ELECTRODE FOR ELECTROLYSIS OF A METAL HALOGENIDE AQUEOUS SOLUTION, containing an electric drive base made of valve metal with an active mass deposited on its surface containing iridium oxide, valve metal oxide and base metal oxide) '' are also distinguished by the fact that, in order to increase the service life electrode during the electrolysis of dilute solutions of metal halides, as an oxide of a base metal, it contains tin oxide in the following ponents, mol.%:
    Iridium oxide
    Okyub valve
    5-75
    ΚΟΜ5-70
    Ого th metal
    Tin oxide 20-70 ( 2. Electrode pop. 1, they are distinguished by the fact that the base is made of titanium, tantalum, niobium, zirconium or their alloy.
    类似技术:
    公开号 | 公开日 | 专利标题
    US3948751A|1976-04-06|Valve metal electrode with valve metal oxide semi-conductive face
    US4070504A|1978-01-24|Method of producing a valve metal electrode with valve metal oxide semi-conductor face and methods of manufacture and use
    US4288302A|1981-09-08|Method for electrowinning metal
    US4626334A|1986-12-02|Electrode for electrolysis
    US3718551A|1973-02-27|Ruthenium coated titanium electrode
    CA1058563A|1979-07-17|Anode for electrolytic processes
    US4839007A|1989-06-13|Method for purifying industrial waste water by direct oxidation of the organic pollutants
    JP2713788B2|1998-02-16|Oxygen generating electrode and method for producing the same
    US4003817A|1977-01-18|Valve metal electrode with valve metal oxide semi-conductive coating having a chlorine discharge in said coating
    US4484999A|1984-11-27|Electrolytic electrodes having high durability
    SU1056911A3|1983-11-23|Electrode for electrolysis of aqueous solution of metal halogenide
    EP0004387B1|1981-07-15|Electrodes for electrolytic processes
    US3986942A|1976-10-19|Electrolytic process and apparatus
    US4443317A|1984-04-17|Electrode for electrolysis and process for its production
    JP2596807B2|1997-04-02|Anode for oxygen generation and its production method
    US6231731B1|2001-05-15|Electrolyzing electrode and process for the production thereof
    EP0004386B1|1982-11-24|Electrodes for electrolytic processes, especially metal electrowinning
    US4233340A|1980-11-11|Process for preparing insoluble electrode
    US3940323A|1976-02-24|Anode for electrolytic processes
    US4318795A|1982-03-09|Valve metal electrode with valve metal oxide semi-conductor face and methods of carrying out electrolysis reactions
    US4313814A|1982-02-02|Electrode for electrolysis and manufacture thereof
    US4049532A|1977-09-20|Electrodes for electrochemical processes
    JPH0633489B2|1994-05-02|Electrode for dilute salt water electrolysis
    US4072585A|1978-02-07|Valve metal electrode with valve metal oxide semi-conductive coating having a chlorine discharge catalyst in said coating
    US4107025A|1978-08-15|Stable electrode for electrochemical applications
    同族专利:
    公开号 | 公开日
    GB2017756B|1982-08-04|
    DE2909593A1|1979-09-27|
    FR2420579B1|1981-11-27|
    US4213843A|1980-07-22|
    NL181220B|1987-02-02|
    JPS54125197A|1979-09-28|
    SE433624B|1984-06-04|
    NL181220C|1987-07-01|
    CA1130759A|1982-08-31|
    IT7948452D0|1979-03-22|
    IN150661B|1982-11-20|
    DE2909593C2|1988-06-30|
    IT1115065B|1986-02-03|
    NL7902210A|1979-09-26|
    FR2420579A1|1979-10-19|
    GB2017756A|1979-10-10|
    SE7902664L|1979-09-25|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    NL128866C|1965-05-12|
    US4070504A|1968-10-29|1978-01-24|Diamond Shamrock Technologies, S.A.|Method of producing a valve metal electrode with valve metal oxide semi-conductor face and methods of manufacture and use|
    US3616445A|1967-12-14|1971-10-26|Electronor Corp|Titanium or tantalum base electrodes with applied titanium or tantalum oxide face activated with noble metals or noble metal oxides|
    US3711385A|1970-09-25|1973-01-16|Chemnor Corp|Electrode having platinum metal oxide coating thereon,and method of use thereof|
    US3684543A|1970-11-19|1972-08-15|Patricia J Barbato|Recoating of electrodes|
    GB1354897A|1971-03-22|1974-06-05|Ici Ltd|Electrodes for electrochemical processes|
    GB1402414A|1971-09-16|1975-08-06|Ici Ltd|Electrodes for electrochemical processes|
    US3926751A|1972-05-18|1975-12-16|Electronor Corp|Method of electrowinning metals|
    US3776834A|1972-05-30|1973-12-04|Leary K O|Partial replacement of ruthenium with tin in electrode coatings|
    US3793164A|1973-04-19|1974-02-19|Diamond Shamrock Corp|High current density brine electrolysis|
    US3875043A|1973-04-19|1975-04-01|Electronor Corp|Electrodes with multicomponent coatings|
    US3917518A|1973-04-19|1975-11-04|Diamond Shamrock Corp|Hypochlorite production|
    US3865703A|1973-04-19|1975-02-11|Diamond Shamrock Corp|Electrowinning with an anode having a multicomponent coating|
    IN143553B|1973-10-26|1977-12-24|Ici Ltd|
    US3969217A|1974-10-07|1976-07-13|Hooker Chemicals & Plastics Corporation|Electrolytic anode|
    JPH05258075A|1992-03-12|1993-10-08|Nec Software Kansai Ltd|Frame plotting method for three-dimensional plane for two-dimensional color display device|EP0121694B1|1983-03-11|1986-04-16|BBC Aktiengesellschaft Brown, Boveri & Cie.|Catalyst for the coating of anodes, and its manufacturing process|
    US4970094A|1983-05-31|1990-11-13|The Dow Chemical Company|Preparation and use of electrodes|
    US4584085A|1983-05-31|1986-04-22|The Dow Chemical Company|Preparation and use of electrodes|
    US4572770A|1983-05-31|1986-02-25|The Dow Chemical Company|Preparation and use of electrodes in the electrolysis of alkali halides|
    JPS6342715B2|1984-01-31|1988-08-25|Perumeretsuku Denkyoku Kk|
    JP2541530B2|1985-10-29|1996-10-09|コモンウェルス、サイエンティフィク、エンド、インダストリアル、リサ−チ、オ−ガナイゼ−ション|Solid electrolyte device and manufacturing method thereof|
    JP2713788B2|1989-12-22|1998-02-16|ティーディーケイ株式会社|Oxygen generating electrode and method for producing the same|
    US7258778B2|2003-03-24|2007-08-21|Eltech Systems Corporation|Electrocatalytic coating with lower platinum group metals and electrode made therefrom|
    BR112013010763B1|2010-11-22|2022-01-11|Mitsubishi Heavy Industries Environmental & Chemical Engineering Co., Ltd|SEA WATER ELECTROLYSIS SYSTEMS AND METHODS|
    ITMI20122035A1|2012-11-29|2014-05-30|Industrie De Nora Spa|ELECTRODE FOR EVOLUTION OF OXYGEN IN INDUSTRIAL ELECTROCHEMICAL PROCESSES|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP3300878A|JPS54125197A|1978-03-24|1978-03-24|Electrolytic electrode and its manufacture|
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