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Apparatus For Copper Electrorefining

Apparatus For Copper Electrorefining

The treatment of copper scrap consisted of copper smelting and converting, copper electrorefining, anode slimes purification by H 2 SO 4 leach to remove Cu Ni, dor233 smelting and silver electrorefining in a Thum cell, gold mud leaching with aqua regia, gold reduction with SO 2, and selective precipitation of red and yellow salts.

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  • Electrorefining An Overview Sciencedirect Topics

    The treatment of copper scrap consisted of copper smelting and converting, copper electrorefining, anode slimes purification by H 2 SO 4 leach to remove Cu Ni, dor233 smelting and silver electrorefining in a Thum cell, gold mud leaching with aqua regia, gold reduction with SO 2, and selective precipitation of red and yellow salts.

  • Us3979275a Apparatus For Series Electrowinning And

    The present invention is related generally to an electrolytic process and apparatus for recovering copper and other metals. The process and apparatus of the present invention are useful in both electrowinning and electrorefining. The present invention is specifically directed to series electrowinning and electrorefining.

  • Electrorefining Of Copper

    Of course, the cell of the present invention can employ conventional bipolar electrodes such as copper slabs or sheets 12 and 16. Due to the electrochemical action within the cell, metal is etched away from the surface of sheets 12 and 16 facing the cathode and is deposited on the surface of sheets 12 and 16 facing the anode so that after operating for a period of time, the positions of sheets 12 and 16 shift to the locations shown by the dotted line pairs in FIG. 1.

  • Copper Anode Slimes Processing Equipment

    When a series electrodeposition cell is employed for electrorefining of a metal such as copper, the anode is a slab of that metal, and the bipolar electrodes can be sheets of the same metal or the novel composite structures described above. A series cell would normally include only one style of bipolar electrode.

  • Electrolysis Process Of Copper Henan Fumine Heavy

    There are many advantages in utilizing series electrodeposition cells for both electrowinning and electrorefining. Principal among them are the use of much lower cell currents than in the parallel system of electrodeposition and the elimination of electrical contacts to all but the end electrodes of a cell. The advantages of the series system become even greater at very high current densitites, where in the parallel system low-resistance clamps are required for every electrode, thus complicating the operation and rendering the attainment of the desired close spacing very difficult.

  • Wo2012020243a1 Apparatus For Use In Electrorefining And

    One of the problems associated with prior art electrodeposition series cells is the phenomenon known as 34current bypass34. When current bypass occurs, a portion of the current does not pass through the bipolar electrodes but passes under or around the bipolar electrodes from the anode to the cathode as is shown by arrow 50. Of course, any current that passes from the anode to the cathode bypassing the bipolar electrodes will not contribute toward plating metal on the bipolar electrodes. Accordingly, any efficient series cell must have some means in it for reducing current bypass.

  • Copper Electrolysis Cathode Making Equipment Buy

    The most significant problem associated with the prior art means for blocking out current bypass is that the means for blocking out the current bypass do not allow for sufficient convection of the electrolyte. In connection with the foregoing, convection is necessary to prevent stagnation of the electrolyte, which results in depletion of the depositing metal ions at cathodic surfaces and may result in passivation of soluble anode surfaces.

  • Copper Electrowinning Theoretical And Practical Design

    The present invention is a method and apparatus for series electrowinning and electrorefining which employs shields to block current bypass but which also includes an air agitation system to provide the necessary convection to prevent stagnation of the electrolyte.

  • Copper Purification Process Electrolytic Copper Refining

    Accordingly, it is an object of the present invention to provide a series electrodeposition method and apparatus which enable the electrodeposition of metal at current densities which are high in relation to the metal concentration, while producing metal of acceptable purity and mechanical integrity.

  • Copper Electrorefining Anodic Slimes Treatment Processes

    A further object of the present invention is to provide a novel method and apparatus for effecting vigorous electrolyte convection in a series electrodeposition process.

  • Electrowinning An Overview Sciencedirect Topics

    Electrowinning is the plating of metallic copper from the CuSO 4 H 2 SO 4 H 2 O electrolyte produced by solvent extraction. It consists of passing direct current between inert but conductive anodes usually PbSnCa alloy and stainless steel sometimes copper cathodes. The cathodic copper deposit is similar to that from electrorefining.

  • Us4207153a Electrorefining Cell With Bipolar Electrode

    An electrorefining cell includes a bipolar electrode that is comprised of a sheet of acid resistant metal and a basket of the same or similar material attached directly to one side of the sheet, the basket being lined with an acid-resistant filter cloth. A method for electrorefining copper cement in slurry form by piping the slurry into the basket is also shown.

  • Electrowinning Equipment Products Amp Suppliers

    Mark E. Schlesinger, ... William G. Davenport, in Extractive Metallurgy of Copper Fifth Edition, 2011

  • Copper Electrorefining Anodic Slimes Treatment Processes

    Electrowinning produces pure metallic copper from leachSX electrolytes. In 2010, about 4.5 million tonnes of pure copper were electrowon.

  • Apparatus For Series Electrowinning And Electrorefining Of

    Electrowinning entails applying an electrical potential between inert Pb-alloy anodes and stainless steel occasionally copper cathodes in CuSO4H2SO4 electrolyte. Pure copper electroplates on the cathodes. O2 and H2SO4 are generated at the anodes.

  • Gold Electrorefining Purifying Machine

    The copper is stripped from the cathode and sold. The O2 joins the atmosphere. The Cu2-depleted electrolyte is returned to SX as the spent electrolyte for stripping Cu2 from the loaded organic phase and replenishment of Cu2 in the advance electrolyte.

  • Recycling Free Fulltext Primary Copper Smelter And

    Electrowon copper is as pure as or purer than electrorefined copper. Its only significant impurities are S 4 or 5 ppm and Pb and Fe 1 or 2 ppm each. Careful control and attention to detail in housekeeping and tankhouse management can decrease these impurity concentrations to the low end of these ranges.

  • Electrowinning Gekko

    Modern trends in copper EW include a increasing current densities above 450 Am2, b reducing energy consumption, c increasing automation and robotic control and monitoring of the process, and d the use of a new generation of anodes.

  • Electrowinning 101 What Is Electrowinning

    Electrowinning is a widely used technology in modern metal recovery, mining, refining and waste water treatment applications. Electrowinning is one of the oldest electrolytic processes known and was first introduced in 1807 by English chemist Humphry Davy.After 66 long years the first commercial refinery Balbach and Sons Refining and Smelting Company adopted the electrowinning technology and ...

  • How Much The Cost Of Grinding Mill

    The electrowinning of cobalt from aqueous chloride solutions is similar to the electrowinning of nickel from chloride solutions. The process produces cobalt with a purity greater than 99.95 Co. Current efficiency is 90 with cell voltages of 3.7V. Current density is 200250Am2. A problem encountered during the electrowinning of cobalt in chloride solutions is the formation of CoOOH on the rutheniummetal oxide-coated titanium anode. The formation of this product appears to corrode the oxide coating and shorten anode service life.

  • Cost Of Copper Electrorefining Anode Slime Processing

    Cost Of Electrorefining Equipment - Magic-Shrooms.Nl. Electrorefining of copper, process crusher, mining equipment electrorefining of copper 90 views the zenith is the professional mining equipments manufacturer in the world, loed in china,india, along with other asian marketplaces to develop and develop, now we supply in. more info cost of ...

  • Michael H Barker Group Expert Hydrometallurgy

    Equipment for de-copperising an electrorefining process and way of operating the process Toegekend 9 november 2017 Europa WO2017191458 A1 The invention relates to an electrorefining cell and its use in a method of electrorefining of copper.

  • Copper Electrorefining Plant Design Amp Configurationcopper

    The thicker the piece, the more oxygen will have to remain in the metal, if a flat surface is to be obtained. A third degree of pitch aimed at is that required by very thin castings, such as electrodes 0.5 in. in thickness. As this pitch lies beyond that of wire-bar copper and differs from it more than to permit its being designated merely a shading, it may be called plate-pitch.

  • Frp Electrolytic Cell For Electrorefining Amp Eletrowining

    Finally, Fig. 8 represents the same sample as shown in Fig. 2, viz., copper with 1.16 per cent Cu2O. In the first case, the specimen has been heated to 1100 C. and then quenched in water of 10 C. in the second, it has been allowed to cool slowly. The disconnected points in the photo-micrograph of the quenched specimen show how the free development of the inner structure has been arrested in contrast, Fig. 2 illustrates clearly how the eutectic, if given sufficient time, forms a connected network.

  • High Current Density Copper Electrorefining And

    Button-samples for this investigation were kindly furnished by Mr. W. T. Burns, of the Boston amp Montana Consolidated Copper and Silver Mining Co., Great Falls, Mont. by Mr. M. B. Patch, of the Buffalo Smelting Works, of the Calumet amp Hecla Mining Co., Buffalo, N. Y. and by Mr. G. M. Luther, of the Nichols Chemical Co., Laurel Hill, N. Y.

  • Copper Refining Explained Stepbystep

    Sample No. 1 of the Boston amp Montana Co. represents cathode copper after it has been melted down in the reverberatory furnace and skimmed, but not rabbled No. 2 was taken after the rabbling had been completed and the stage of set-copper reached No. 8 is the sample after the poling has been finished, and the copper is ready to be ladled into wire-bars. The tests made at the works give silver, 0.8 oz. per ton arsenic and antimony, 0.0035 per cent conductivity hard-drawn 97.5 per cent tensile strength, 64,200 lb. per sq. in. elongation, 1 per cent torsion-twists in 6 in., 89.

  • Copper Electrorefining Anodic Slimes Treatment Processes

    Sample No. 0 of the Buffalo Smelting Works represents set- copper the remaining six of the set, Nos. 1, 2, 3, 4, 5 and 6, were taken at intervals of 15 minutes during the poling-period No. 1 was cast after the poles had been in the furnace for 15 minutes No. 6 is finished refined copper brought to a pitch at which ingots or cakes are cast. Samples Nos. A and B, from another charge, represent copper brought to ingot-pitch and wire-bar pitch respectively, special care having been taken to allow the samples to cool slowly.

  • Copper Electrowinning Theoretical And J Practical Design

    The sample of the Nichols Chemical Co. represents plate- pitch, that is, the pitch desired for casting thin electrodes.

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