PROCESS FOR THE RECOVERY OF GOLD AND SILVER FROM CONCENTRATED AURIFEROUS ORE

摘要

The invention relates to a process for the electrochemical recovery of gold and silver from ore and products. According to the invention, the process consists in adding crushed gold or silver ore in an alkaline solution of sodium or potassium cyanide, subjecting the resulting pulp to electrolysis by mixing the pulp in an electrolyser which has anodes made of inoxidable metals and cathodes of copper, supplied with direct current at a density of 10 ... 20 Amp/ square m, a gold cyanide complex and also free granules such as slurry being deposited onto the cathode, at preset intervals, further the slurry from the electrodes being collected and treated in a known manner for the recovery of gold and silver.