• 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:
    A wettable cathode for an electrolytic cell for the electrolysis of a molten charge, in particular for the production of aluminum, where the said cathode comprises individual, exchangeable elements each with a component part for the supply of electrical power. The elements are connected electrically, via a supporting element, by molten metal which has separated out in the process. The interpolar distance between the anodes and the vertically movable cathode elements is at most 2 cm.
    公开号:SU1056912A3
    申请号:SU792786307
    申请日:1979-07-03
    公开日:1983-11-23
    发明作者:Куглер Тибор
    申请人:Швайцерише Алюминиум Аг (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to the metallurgy of light metals, in particular, to devices for electrolytic production of aluminum, namely, to a cathode. The cathode of an aluminum electrolyzer, made in the form of plates fixed on the bottom of an electrolyzer at an angle to the horizontal toward the center of the electrolyzer, is known. The center of the electrolyzer using this cathode should be recessed to collect the cathode metal C. However, the need to have a recess in the center of the electrolyzer significantly increases its dimensions and material consumption (due to the need for enhanced thermal insulation of the bottom of the electrolyzer), and the difficulty in the circulation of the electrolyte causes the anodic effects, i.e. decrease in current output. The closest in technical essence and the achieved result to the invention is a cathode of an aluminum electrolyzer consisting of separate replaceable parts fastened together and equipped with a current lead. This cathode is the bottom of the cell 2. The disadvantages of the known cathode are that it does not provide for the intensive circulation of electrolyte, and this leads to the depletion of aluminum electrolyte layers adjacent to the cathode, which in turn increases the frequency of anode effects and reduces the current output. In addition, the design of the known cathode does not allow to reduce the distance between it and the anode, which increases the power consumption during electrolysis. The aim of the invention is to increase the current efficiency due to the cathodic polarization of the deposited metal and the organization of electrolyte movement and to reduce the power consumption during electrolysis by reducing the spacing between the electrodes. This goal is achieved by the fact that in the cathode of an aluminum electrolyzer consisting of separate interchangeable parts interconnected and equipped with a current lead, the interchangeable parts are made of a rod or plates and have at least one hole for electrolyte flow, and the current lead is vertical . The rods in cross section are square. FIG. 1 shows a cathode assembled from plates; a general view of FIG. This is the same, but from rods; in fig. 3 electrolyzer with cathodes, general view; longitudinal section in FIG. 4 - the same cross section. The cathode is assembled from separate replaceable parts — plates 1 or rods 2, vertical current leads 3, and supporting elements 4, with holes b in the plates 1 for circulating electrolyte and draining the resulting metal. Holes 5 can also be obtained by using a special shape of the rods 2 (figure 2), from which the cathode is assembled. The cathode is mounted on the bottom-6 of the electrolysis cell, equipped, for example, with baked anodes 7, connected to the busbar 8, an alumina hopper 9, cathode tires 10 to overlap 11. The cathode operates in the following way. When current is passed between the cathodes and the anodes 7, aluminum is depleted on the cathode, and through the holes 5 it flows to the bottom of the electrolyzer. When current flows, an electromagnetic effect also occurs, causing a directional movement of the electrolyte (shown in Fig. 3 with arrows). This leads to the fact that the electrolyte depleted in the electrolysis process is constantly replaced by a new one. At the same time, from the bunker 9, alumina is charged into the depleted electrolyte, which, when dissolved, enriches the electrolyte with aluminum and simultaneously cools it. Since liquid aluminum is collected on the bottom 6, the influence of electromagnetic forces on it is insignificant, and since the supporting elements 4 of the cathode are immersed in it, it is polarized cathodically. and dissolving it does not occur. Making the cathode in the form of interchangeable plates or rods equipped with supporting elements reduces the distance between the electrodes, which leads to a reduction in the loss of electricity for heating the electrolyte, while providing the possibility of continuous electrolyte circulation increases the current output.
    权利要求:
    Claims (2)
    [1]
    1. Cathode | ALUMINUM ELECTRIC; TROLIZER, consisting of separate interconnected interchangeable parts and equipped with <current lead, characterized in that, in order to increase current efficiency and reduce energy consumption by reducing the distance between the electrodes, the interchangeable parts are made of rods or plates and have at least , one hole for the flow of electrolyte, and the current lead is made vertical.
    [2]
    2. The cathode in π. 1, characterized in that. the rods in cross section are square in shape.
    Figure 1
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1056912A3|1983-11-23|Cathode for aluminium electrolytic cell
    US7077945B2|2006-07-18|Cu—Ni—Fe anode for use in aluminum producing electrolytic cell
    RU93039970A|1996-12-27|MULTIMONOPOLAR ELEMENT AND METHOD FOR PRODUCING ALUMINUM BY ELECTROLYSIS, ASSEMBLY OF ANODES IN THIS ELEMENT, INDEXPRESSIBLE ANODE AND METHOD OF CONVERTING AN ELECTROLYTIC ELEMENT TO A MULTIMELOMENTOL
    US6558525B1|2003-05-06|Anode for use in aluminum producing electrolytic cell
    CN203065598U|2013-07-17|Smelting equipment
    US4707239A|1987-11-17|Electrode assembly for molten metal production from molten electrolytes
    US3839179A|1974-10-01|Electrolysis cell
    PL90063B1|1976-12-31|
    US3067124A|1962-12-04|Furnace for fused-bath electrolysis, particularly for aluminum production from alo
    US2970095A|1961-01-31|Method and apparatus for electrolytic decomposition of amalgams
    RU2001127744A|2003-06-20|ELECTROLYZERS FOR ELECTROLYTIC PRODUCTION OF ALUMINUM WITH ANODES OXIDATING OXYGEN
    US3515661A|1970-06-02|Electrolytic cells having detachable anodes secured to current distributors
    SU910858A1|1982-03-07|Electrolyzer
    RU2282680C1|2006-08-27|Electrolyzer for production of aluminum
    US4196067A|1980-04-01|Absorption of magnetic field lines in electrolytic reduction cells
    USRE28829E|1976-05-25|Fused salt electrolyzer for magnesium production
    US1486546A|1924-03-11|Electrolytic separation
    US3736244A|1973-05-29|Electrolytic cells for the production of aluminum
    US1092369A|1914-04-07|Process of making chlorates and apparatus therefor.
    RU2187581C2|2002-08-20|Aluminum electrolyzer
    US3767556A|1973-10-23|Electrolyzers for the production of magnesium
    SU883192A1|1981-11-23|Filter-press type monopolar electrolyzer
    KR880000709B1|1988-04-25|Electrolytic cell for mg chloride
    CA1219836A|1987-03-31|Electrolytic cell sections separated by shieldsproviding zigzag circulation
    SU889746A1|1981-12-15|Electrolyzer for producing ferric or cobalt hydroxide
    同族专利:
    公开号 | 公开日
    ZA792603B|1980-08-27|
    BR7904215A|1980-03-18|
    CA1140494A|1983-02-01|
    DD144796A5|1980-11-05|
    IT7923922D0|1979-06-27|
    ATA463479A|1983-08-15|
    US4243502A|1981-01-06|
    FR2430464A1|1980-02-01|
    IT1125375B|1986-05-14|
    JPS558498A|1980-01-22|
    GB2024864A|1980-01-16|
    NO151471B|1985-01-02|
    CH635132A5|1983-03-15|
    NO151471C|1985-04-17|
    SE7905820L|1980-01-05|
    AU528897B2|1983-05-19|
    NL7904719A|1980-01-08|
    NO792154L|1980-01-07|
    YU161579A|1983-01-21|
    DE2838965A1|1980-01-17|
    AU4833179A|1980-01-10|
    GB2024864B|1982-11-03|
    ES482148A1|1980-08-16|
    DE2838965C2|1983-06-01|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    BE433408A|1938-04-08|
    GB826634A|1955-03-10|1960-01-13|British Aluminium Co Ltd|Improvements in or relating to electrolytic reduction cells for the production of aluminium|
    US3151053A|1958-06-12|1964-09-29|Kaiser Aluminium Chem Corp|Metallurgy|
    US3321392A|1962-09-07|1967-05-23|Reynolds Metals Co|Alumina reduction cell and method for making refractory lining therefor|
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    US3475314A|1965-11-17|1969-10-28|Reynolds Metals Co|Alumina reduction cell|
    BE698705A|1967-05-19|1967-11-03|
    NO764014L|1975-12-31|1977-07-01|Aluminum Co Of America|
    US4071420A|1975-12-31|1978-01-31|Aluminum Company Of America|Electrolytic production of metal|
    NO139865C|1977-06-06|1979-05-23|Norsk Hydro As|REPLACABLE CATHOOD UNIT SUITABLE AS A MODULE FOR CONSTRUCTION OF STABLE, NON-DEFORMABLE CATHOOD SYSTEMS IN ELECTROLYSORS FOR THE MANUFACTURE OF MAGNESIUM AND ELECTROLYSOSES WITH INSTALLED CATHODE|
    US4177128A|1978-12-20|1979-12-04|Ppg Industries, Inc.|Cathode element for use in aluminum reduction cell|GB2069530B|1980-01-28|1984-05-16|Diamond Shamrock Corp|Packed cathode bed for electrowinning metals from fused salts|
    CH643885A5|1980-05-14|1984-06-29|Alusuisse|ELECTRODE ARRANGEMENT OF A MELTFLOW ELECTROLYSIS CELL FOR PRODUCING ALUMINUM.|
    AU543106B2|1980-05-23|1985-04-04|Swiss Aluminium Ltd.|Cathod for aluminium production|
    US4349427A|1980-06-23|1982-09-14|Kaiser Aluminum & Chemical Corporation|Aluminum reduction cell electrode|
    CH645675A5|1980-11-26|1984-10-15|Alusuisse|CATHOD FOR A MELTFLOW ELECTROLYSIS CELL FOR PRODUCING ALUMINUM.|
    US4341611A|1980-12-18|1982-07-27|Reynolds Metals Company|Alumina reduction cell|
    US4383910A|1981-05-21|1983-05-17|Reynolds Metals Company|Alumina reduction cell|
    ZA824256B|1981-06-25|1983-05-25|Alcan Int Ltd|Electrolytic reduction cells|
    ZA824254B|1981-06-25|1983-05-25|Alcan Int Ltd|Electrolytic reduction cells|
    FR2518124B1|1981-12-11|1984-02-17|Pechiney Aluminium|
    US4526669A|1982-06-03|1985-07-02|Great Lakes Carbon Corporation|Cathodic component for aluminum reduction cell|
    US4622111A|1983-04-26|1986-11-11|Aluminum Company Of America|Apparatus and method for electrolysis and inclined electrodes|
    US4596637A|1983-04-26|1986-06-24|Aluminum Company Of America|Apparatus and method for electrolysis and float|
    US4504366A|1983-04-26|1985-03-12|Aluminum Company Of America|Support member and electrolytic method|
    US4685514A|1985-12-23|1987-08-11|Aluminum Company Of America|Planar heat exchange insert and method|
    US4702312A|1986-06-19|1987-10-27|Aluminum Company Of America|Thin rod packing for heat exchangers|
    US4705106A|1986-06-27|1987-11-10|Aluminum Company Of America|Wire brush heat exchange insert and method|
    US4678548A|1986-07-21|1987-07-07|Aluminum Company Of America|Corrosion-resistant support apparatus and method of use for inert electrodes|
    US4795540A|1987-05-19|1989-01-03|Comalco Aluminum, Ltd.|Slotted cathode collector bar for electrolyte reduction cell|
    US5158655A|1989-01-09|1992-10-27|Townsend Douglas W|Coating of cathode substrate during aluminum smelting in drained cathode cells|
    US5472578A|1994-09-16|1995-12-05|Moltech Invent S.A.|Aluminium production cell and assembly|
    US5938914A|1997-09-19|1999-08-17|Aluminum Company Of America|Molten salt bath circulation design for an electrolytic cell|
    GB2371055A|2001-01-15|2002-07-17|Innovation And Technology Alum|Anode for electrolysis of aluminium|
    US6719889B2|2002-04-22|2004-04-13|Northwest Aluminum Technologies|Cathode for aluminum producing electrolytic cell|
    US6719890B2|2002-04-22|2004-04-13|Northwest Aluminum Technologies|Cathode for a hall-heroult type electrolytic cell for producing aluminum|
    US6866768B2|2002-07-16|2005-03-15|Donald R Bradford|Electrolytic cell for production of aluminum from alumina|
    US6811676B2|2002-07-16|2004-11-02|Northwest Aluminum Technologies|Electrolytic cell for production of aluminum from alumina|
    US6863788B2|2002-07-29|2005-03-08|Alcoa Inc.|Interlocking wettable ceramic tiles|
    ES2415235T3|2008-11-06|2013-07-24|Yeda Research And Development Co., Ltd.|Procedures and apparatus for electrochemical production of carbon monoxide, and uses thereof|
    RU2719823C1|2016-03-30|2020-04-23|АЛКОА ЮЭсЭй КОРП.|Devices and systems for vertical electrolyzers|
    WO2018009862A1|2016-07-08|2018-01-11|Alcoa Usa Corp.|Advanced aluminum electrolysis cell|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH725878A|CH635132A5|1978-07-04|1978-07-04|CATHOD FOR A MELTFLOW ELECTROLYSIS OVEN.|
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