Electrogenerative gold recovery from cyanide solutions using a flow-through cell with activated reticulated vitreous carbon.
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.
Yap
Chin Yean
CY
School of Chemical Sciences, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia.
Mohamed
Norita
N
D002244:Carbon / Q000737:chemistry*; D003486:Cyanides / Q000737:chemistry*; D004563:Electrochemistry / Q000295:instrumentation / Q000379:methods*; D006046:Gold / Q000302:isolation & purification*; D012996:Solutions / Q000737:chemistry
D003486:Cyanides; D012996:Solutions; D002244:Carbon; D006046:Gold