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Optimization and application of desorption electrolysis equipment

  • English Author:
  • Miao Tengfei

  • Unit:
  • (Inner Mongolia Pacific Mining Co., Ltd.)
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Abstract:

 The cyanide leaching is a representative method in gold production, with the desorption electrolysis stage being crucial as it directly affects gold output. Inner Mongolia Pacific Mining Co.., Ltd. employs a beneficiation process of crushing-heap leaching-activated carbon adsorption-desorption electrolysis-smelting. However, during pro-duction, excessive carbon powder frequently clogs the desorption electrolysis equipment, reducing production efficiencyand gold yield. This study examines the application of desorption electrolysis equipment in the gold production processand its associated challenges. By analyzing the effects of process parameters such as temperature, pressure, and sodium hydroxide concentration on desorption electrolysis performance, and addressing issues observed during equipment operation, a series of targeted optimization measures were proposed. These include adjusting desorption solution dosage, reducing circulation flow, enlarging the carbon rod mesh openings, and increasing the filtration area and meshes of filters. These measures effectively solved clogging and efficiency limitations, providing valuable insights for optimizing similar equipment.

Keywords:

desorption electrolysis; sodium hydroxide; filter; optimization measures; carbon powder; clogging