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1. Cyanidation

   Linked via "agitated tank leaching"

   Agitation (Tank) Leaching
   For higher-grade ores, agitated tank leaching is used. The finely ground ore slurry is mixed vigorously with the cyanide solution in large tanks, allowing for precise control over parameters like oxygen input and $\text{pH}$. Residence times are considerably shorter, often 24 to 48 hours. To ensure adequate oxygen supply, advanced methods involving [pressurized air injection](/…