WO2015171010A1 Process of extracting gold and silver from ores .
The invention relates to a process for the extraction of gold and silver from ores and mining by products. The process according to invention consists in treating ores and mining residues having a content of 0.5. 12 ppm Au with a solution of ammonium thiosulphate, recycled at a temperature of 15 25°C; the filtrate resulting.
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