Electrogenerative gold recovery from cyanide solutions using a flow-through cell with activated reticulated vitreous carbon |
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Authors: | Yap Chin Yean Mohamed Norita |
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Institution: | School of Chemical Sciences, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia. |
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Abstract: | An electrogenerative flow-through reactor with an activated reticulated vitreous carbon cathode was developed. The influence of palladium-tin activation of the cathode towards gold deposition was studied by cyclic voltammetry. The reactor proved to be efficient in recovering more than 99% of gold within 4 h of operation. The performance of the reactor was evaluated with initial gold concentrations of 10, 100 and 500 mg L-1 and various electrolyte flow rates. Gold recovery was found to be strongly dependent on electrolyte flow rate and initial gold concentration in the cyanide solution under the experimental conditions used. |
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