Milica Gvozdenovic - Behaviour of non-standard composition copper bearing anodes from the copper refining process

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  Publication Details (including relevant citation   information):

  Journal of Hazardous   Materials
    Volume 182, Issues 1-3,    15 October   2010,   Pages 55-63


  This paper addresses on investigation the possibility of   electrolytic treatment the sulphur acidic waste solution,   obtained in the conventional electrolytic copper refining   process. Beside the high copper concentration, the high   concentration of other metals, in this case nickel, is the main   characteristic of these waste solutions. Due to this fact, the   copper bearing anodes with non-standard nickel, lead, tin and   antimony content were specially prepared for the refining   process. Nickel content of all anodes was approximately 7.5   mass%, and the content of lead, tin and antimony was varied. The   preliminary results, obtained using the standard electrochemical   techniques, have indicated that the copper bearing anodes could   be used under the same conditions as well as in the conventional   copper refining process. The measurements in constant   galvanostatic pulse have pointed out that the all chemical   elements from copper bearing anodes were dissolved and only   copper was deposited onto the cathode. It was also pointed out   that Ni concentration in the base working electrolyte (sulphur   acidic waste solution), after 72 h of process, increased to 102   mass% at T1 = 63 ± 2 °C and up to 122 mass%   at T1 = 73 ± 2 °C, while arsenic   concentration decreased to a minimum value.

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