• 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:
    1434334 Electrowinning metals ELECTRONOR CORP 29 Jan 1974 [29 Jan 1973] 04165/74 Heading C7B In a process and cell for metal electrowinning, the active anode area is 1À5-20 times less than the active cathode area, whereby the anode/cathode current density ratio is 1À5-20:1. The anode may comprise a series of parallel coplanar rods 34 arranged parallel to and spaced 20-150 mm from a steel sheet cathode. The rod axial spacing may be 10-100 mm, with closer spacing at the ends, and the rod diameter may be 2-16 mm. The rods which may taper at their ends may be round, square or rectangular in section, or may be replaced by strips or mesh. Alternative configurations are given Figs. 3-5, (not shown). The rods may be of a valve metal e.g. Ti, optionally on a Cu core, and have an electrocatalytic conductive coating of one or more oxides, nitrides, carbides or sulphides of Au, Pt, Ag, Pd, Ir, Ru, Os, Rh, Fe, Ni or Cr with or without one or more oxides of a valve metal (e.g. TiO 2 , Ta 2 O 5 ), Fe, Ni, Sn, Al, Co or Cr. A cell with an e.g. asbestos diaphragm may be used. Current density ranges specified are 1000-2000 A/m<SP>2</SP> anodic for a cathode c.d. of 300 A/m<SP>2</SP>. Metals electro-deposited are Cu, Zn, Co (from acid sulphate baths) or Ni (from an acid sulphate or H 3 BO 3 buffered chloride bath).
    公开号:SU795506A3
    申请号:SU741994295
    申请日:1974-01-28
    公开日:1981-01-07
    发明作者:Де Нора Оронзио；Траини Карло
    申请人:Даймонд Шамрок Тэкнолоджис С.А.(Фирма)；
    IPC主号:
    专利说明:

    walking along bus 3, goes through anode contact tires and anodes 5, in each direction from the anodes through electrolyte 10 to cathodes b and through cathode holders 9, contact tires 8 and tires 4 to contact anodic tires 7 of the adjacent electrolytic cell. The contact tires 7 and 8 are supported at opposite ends by non-conductive supports 11 and 12, respectively, to ensure the horizontal position of the electrodes and the desired parallel circuit of the electric current.
    Between the anode and cathode spaces there may be a diaphragm.
    The anodes 5 are made in the form of horizontal rods 13 of a transition metal with a surface of oxides of a transition or platinum metal, located with an increase in the distance between them from the edge to the center by 0.6-1.5 times the distance between the cathode and the anode, and the surface the anode is 1.5-20 less than the surface of the cathode 6.
    The anode of FIG. 2 is made up of vertical rods 13 connected by a horizontal plate 14, which supports them and distributes electrical current between them. A horizontal plate 14 is connected to the contact bus 7. A horizontal rod 15 is fixed at the lower ends of the rods, which serves to maintain a predetermined distance between the rods and equalize possible potential fluctuations.
    According to the embodiment of FIG. 3. the horizontal plate 14 is located n in the middle of the vertical rods 13,
    Current conductors 16 are made from materials such as copper or aluminum, and are isolated from the electrolyte by a protective sheath 17 resistant to the corrosive environment in the electrolytic cell. The current conductors 16 distribute the electrolytic current at several points along the length of the plate 14, minimizing the ohmic voltage drop.
    According to the embodiment of FIG. 4 rods 13 are arranged horizontally, and the current conductor 16 with an insulating sheath. 17 is vertically located in
    the middle of the rods, with the ends of the rods attached to the conductor 16.
    As a result of such a constructive solution, a cathode is obtained.
    dense uniform metal sediment, for example, nickel, 6 mm thick, without dendrites,
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    An electrolytic cell for metal extraction, containing an electrolyte tank, a cathode and an anode made in the form of transition metal rods with a surface of transition or platinum metal oxides, the cathode and the anode located at a distance from each other, and characterized in that, in order to increase the uniformity of the coating on the cathode, the rods are located with an increase in the distance between them from the edge to the center by 0.6-1.5 times the distance between the cathode and the anode, and the surface the anode is 1.5–20 times smaller than the cathode surface.
    Sources of information taken into account in the examination
    l 1, UK Patent
     1147442, cl. C 7 B, 1969 (prototype).
    sixteen
    (rig 2
    lPffe.J
    类似技术:
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    同族专利:
    公开号 | 公开日
    DE2404167A1|1974-08-01|
    JPS49105701A|1974-10-07|
    GB1434335A|1976-05-05|
    FR2215483B1|1978-06-09|
    SE405988B|1979-01-15|
    NO740049L|1974-07-30|
    IT978581B|1974-09-20|
    NO141373C|1980-02-27|
    ZA74135B|1975-08-27|
    AU6491274A|1975-07-31|
    FR2215483A1|1974-08-23|
    NO141373B|1979-11-19|
    GB1434334A|1976-05-05|
    DE2404167C2|1985-08-14|
    BE810315A|1974-05-16|
    CA1063061A|1979-09-25|
    JPS5720393B2|1982-04-28|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2766198A|1953-03-05|1956-10-09|Union Carbide & Carbon Corp|Anodes for electrowinning of manganese|
    GB1195871A|1967-02-10|1970-06-24|Chemnor Ag|Improvements in or relating to the Manufacture of Electrodes.|
    US3616302A|1967-02-27|1971-10-26|Furerkawa Electric Co Ltd The|Insoluble anode for electrolysis and a method for its production|IT1082437B|1977-08-03|1985-05-21|Ammi Spa|ANODE FOR ELECTROLYTIC CELLS|
    JPS5639397B2|1977-10-21|1981-09-12|
    DE3005795C2|1980-02-15|1984-12-06|Conradty GmbH & Co Metallelektroden KG, 8505 Röthenbach|Coated metal anode for the electrolytic extraction of metals|
    CA1147034A|1980-11-28|1983-05-24|Daniel P. Young|Electrical connection between copper conductor andtitanium conductor|
    CA1232227A|1982-02-18|1988-02-02|Christopher Vance|Manufacturing electrode by immersing substrate inaluminium halide and other metal solution andelectroplating|
    IT1152776B|1982-05-27|1987-01-14|Snam Progetti|INSOLUBLE ANODES FOR THE EXTRACTION OF THE LEAD FROM THE ELECTROLYTE IN THE ELECTROCHEMICAL PROCESSES FOR THE RECOVERY OF THE METALS CONTAINED IN THE EXHAUSTED ACCUMULATORS|
    DE3406797C2|1984-02-24|1985-12-19|Conradty GmbH & Co Metallelektroden KG, 8505 Röthenbach|Coated valve metal anode for the electrolytic extraction of metals or metal oxides|
    DE3406823C2|1984-02-24|1985-12-19|Conradty GmbH & Co Metallelektroden KG, 8505 Röthenbach|Coated valve metal anode for the electrolytic extraction of metals or metal oxides|
    DE3406777C2|1984-02-24|1985-12-19|Conradty GmbH & Co Metallelektroden KG, 8505 Röthenbach|Coated valve metal anode for the electrolytic extraction of metals or metal oxides|
    EP3004427B1|2013-06-04|2020-05-06|Pultrusion Technique Inc.|Configurations and positioning of contact bar segments on a capping board for enhanced current density homogeneity and/or short circuit reduction|
    WO2015054801A1|2013-10-18|2015-04-23|New Tech Copper Spa.|Reusable anode for refining metals by electrolysis, method for reusing the recycled anode|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    IT19738/73A|IT978581B|1973-01-29|1973-01-29|METALLIC ANODES WITH REDUCED ANODIC SURFACE FOR ELECTROLYSIS PROCESSES USING LOW DENSITY OF CATHODIC CURRENT|
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