• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
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  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1513259 Electrolytic cell NATIONAL RESEARCH DEVELOPMENT CORP 7 Oct 1976 [10 Oct 1975] 41622/75 Heading C7B An electrolytic cell e.g. for electrowinning or electro-chemical synthesizing comprises an expanded mass particulate electrode e.g. the cathode with means for passing electrolyte therethrough and a counter-electrode e.g. the anode in direct electrical contact with at least some particles of the particulate electrode, the counter-electrode being electrically conducting but having a contact resistance in air between itself and a Cu test surface of at least 10 times that under the same conditions between the Cu test surface and another Cu surface. The surface of the counter-electrode (anode) may be of graphite or an electrically conducting oxide material, e.g. RuO 2 coated on Ti, PbO 2 coated on steel or Pb, iron oxide, MnO 2 coated on Ni, or a Ni or stainless steel rod anodized in Ni acetate or ferric sulphate solution to form oxide coating. The cell may be a cylindrical glass tube with glass frit base for distributing electrolyte flow evenly. The cathode may be Cu or Zn coated Cu beads of 500 micron diameter forming a circulating, fluidized or packed bed, with a Cu wire spiral along the inner wall of tube for current feeder. The electrolyte may contain Cu with H 2 SO 4 , ZnO with KOH or ZnSO 4 .
    公开号:SU1048997A3
    申请号:SU762413352
    申请日:1976-10-08
    公开日:1983-10-15
    发明作者:Флейшманн Мартин；Гудридж Фрэнсиз；Джон Ванс Кристофер
    申请人:Нэшнл Рисерч Дивелопмент Корпорейшн (Фирма)；
    IPC主号:
    专利说明:

    four
    00 QD
    The invention relates to a measuring technique, and more specifically to electrochemical converters. The most essential technical result and the achieved result is an electrochemical cell containing an electrolyte tank, a particle electrode located on the bottom of the tank, an electrolyte pump. and electrical conductive counter electrode {1}. In the known electrochemical cell, the anode must be separated from the cathode material by an ion-permeable membrane with a semipermeable diaphragm to prevent short-circuit between the electrodes. The presence of the diaphragm reduces the reliability of the electrochemical cell, since the diaphragm is prone to leakage, rupture. The purpose of the invention is to improve the reliability of the cell and simplify the construction. This goal is achieved by the fact that, in an electrochemical cell containing a capacitance electrolyte, the electrode is in the form of particles of a substance located at the bottom of the tank, a pump for pumping electrolyte and an electronically conducting counter electrode, the counter electrode is made of ruthenium oxide or lead oxide. The contact resistance between the surface of ruthenium oxide and lead oxide and the surface of copper, when tested, is at least 10 times greater than the contact resistance between two copper surfaces. Due to the performance of the counter-electrode from a material having the specified contact resistance, a short circuit does not occur if the cathode particles come into contact with the anode. The drawing shows the design of the electrochemical cell. In the tank 1, an electrode 2 is located in the form of particles of a substance surrounded by electrolyte 3. A pump 4 pumps electrolyte 3 to liquefy particles 2. Electroconductive counter-electrolyte. genus 5 is in direct contact with some of the particles 2. Example 1. When testing a cell with an anode made of lead wire coated with lead dioxide, the anode is dipped into the cell before direct contact with the copper igarica / grains / cathode. At current 0,0; 0.1; 0.2; 0.3; 0.4; 0.5 A, power supply anode, voltage 1.3; 2.2; 2.4; 2.6; 2.8 V respectively. Abundant gas evolution, discoloration of copper particles, and copper deposition are observed near the anode. In the absence of copper balls at a current of 0.1; 0.2; 0.3; 0.4; And the power is anode, voltage, 1,3; 2.9; 3.6; 3.8; 4.1 V respectively. The test shows that the cell has no direct closure between the electrodes. PRI mme R 2. When testing a cell with a titanium anode coated with ruthenium oxide, the anode is lowered to direct contact with the copper balls. Current 0; 0.1; 0.2; 0.3; 0.4; 0.5; 0.6 A, anodic power supply 0.09; 1.6; 2.0; 2.4; 2.0; 3.1; 3.5 V respectively. In the absence of copper balls, current 0; 0.1; 0.2; 0.3; 0.4; 0.5; 0.6 A, anodic power 0.2; 2.6; 2.9; 3.3; 3.6; 3.9; 4.3 V respectively. The invention simplifies cell construction, since such an electrochemical cell does not need a diaphragm to prevent short circuits. The absence of a diaphragm increases the “reliability of the electrochemical cell.
    权利要求:
    Claims (1)
    [1]
    An electrochemical cell containing a container with an electrolyte, an electrode in the form of particles of a substance located at the bottom of the tank, an electrolyte pump for pumping and an electrically conductive counter electrode, characterized in that, in order to increase the reliability of the cell and simplify the design, the counter electrode is made of ruthenium oxide or lead oxide .
    >
    1 1048997
    类似技术:
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    US2368688A|1945-02-06|Electrolytic device
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    US3239444A|1966-03-08|Oxygen sensing polarographic cell
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    KR880003354A|1988-05-16|Long Life Capacitor and Manufacturing Method
    US2616953A|1952-11-04|Electrolytic condenser
    US2710369A|1955-06-07|Electrolytic condenser
    US3564347A|1971-02-16|Electrochemical timer
    GB1144732A|1969-03-05|Electrolytic coulometer cell
    SU694107A3|1979-10-25|Chemical current source
    US3720869A|1973-03-13|Battery cell structure and method of determining state of charge
    US3644145A|1972-02-22|Incorporation of valve metals into current-producing cell constructions
    US2834926A|1958-05-13|Tantalum electrolytic capacitor with iron chloride depolarizer
    US3926673A|1975-12-16|Method and apparatus for charging zinc electrodes in galvanic cells
    US2572017A|1951-10-23|Dry battery cell
    US3485673A|1969-12-23|Nickel-zinc battery system having an aqueous electrolyte consisting of potassium hydroxide and potassium carbonate
    US3548265A|1970-12-15|Porous anode capacitor
    US4408257A|1983-10-04|Cathode electrode for an electrical device
    US3601665A|1971-08-24|Capacitors having a self-depolarizing electrolyte
    US4133738A|1979-01-09|Electrode with a graded electrical resistance substrate
    CN2703316Y|2005-06-01|High-energy tantalum mixed capacitor
    US4470894A|1984-09-11|Nickel electrodes for water electrolyzers
    US4466841A|1984-08-21|Cathode electrode for an electrical device and method of making same
    US3682703A|1972-08-08|Metal bromide system
    US4159509A|1979-06-26|Cathode depolarizer
    同族专利:
    公开号 | 公开日
    DE2645554A1|1977-04-21|
    DE2645554C2|1985-01-31|
    NL7611185A|1977-04-13|
    IE43634B1|1981-04-22|
    GB1513259A|1978-06-07|
    IE43634L|1977-04-10|
    LU75971A1|1977-05-09|
    FR2327538B1|1982-05-07|
    JPS5247576A|1977-04-15|
    FR2327538A1|1977-05-06|
    US4073702A|1978-02-14|
    ZA766051B|1977-09-28|
    BR7606802A|1977-08-30|
    DK453976A|1977-04-11|
    BE847003A|1977-01-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB1232582A|1967-05-09|1971-05-19|
    US3616356A|1967-09-18|1971-10-26|Clarence H Roy|Electrolysis in a particulate carbon packing|
    US3703446A|1968-02-08|1972-11-21|Shell Oil Co|Method of carrying out electrochemical processes in a fluidized-bed electrolytic cell|
    US3699014A|1970-12-29|1972-10-17|Norton Co|Vibratory process|
    CA1001986A|1973-08-13|1976-12-21|Nanabhai R. Bharucha|Fluidized-bed electrode system|US4268363A|1977-10-11|1981-05-19|Coughlin Robert W|Method for electrowinning metals|
    US4240886A|1979-02-16|1980-12-23|Amax Inc.|Electrowinning using fluidized bed apparatus|
    US4243498A|1979-02-16|1981-01-06|Amax Inc.|Nickel electrowinning using reduced nickel oxide as a fluidized cathode|
    JPS5654397B2|1979-12-14|1981-12-25|
    AU568388B2|1983-08-10|1987-12-24|National Research Development Corp.|Purifying a mixed cation electrolyte|
    BR8505481A|1984-02-27|1986-02-18|Porters Grove Metal Recovery C|METAL RECOVERY PROCESS|
    GB8623069D0|1986-09-25|1986-10-29|Shell Int Research|Fluid bed electrolysis cell|
    GB9318794D0|1993-09-10|1993-10-27|Ea Tech Ltd|A high surface area cell for the recovery of metals from dilute solutions|
    US5628887A|1996-04-15|1997-05-13|Patterson; James A.|Electrolytic system and cell|
    US8202411B2|2008-03-19|2012-06-19|Eltron Research & Development, Inc.|Electrowinning apparatus and process|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    GB41622/75A|GB1513259A|1975-10-10|1975-10-10|Diaphragmless electrochemical cell|
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