Journal of the Korean Society of Mineral and Energy Resources Engineers ISSN:2288-0291(Print) 2288-2790(Online) 한국자원공학회지

The electrochemical behavior of gold in thiourea solution was investigated using a rotating disc electrode system and a modified electrochemical cyclone cell at 25℃. Electrochemical polarization data showed that the limiting current density for gold deposition was observed around -0.55 V (vs. SCE), and the diffusion coefficient of gold estimated using Levich equation was 1.63×10-6 cm2/sec. The effects of several variables such as applied voltage, initial gold concentration and electrolyte flow rate were examined using a cyclone cell in order to obtain the optimum condition for electrowinning of platinum. More than 90% of the platinum in solution was recovered within a 80 min. under the optimum conditions.