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Activated carbon gold extraction: the king of gold loading and efficiency Core parameters: Gold loading ≥300g/ton (coconut shell carbon micropore adsorption of gold cyanide complex) Compressive strength ≥95% (reduce powder loss) Desorption rate ≥99.9% (NaOH+sodium cyanide high temperature desorption) Case: A gold mine in South Africa uses 8×30 mesh coconut shell carbon, and the recovery rate is increased to 94.5%, with an annual revenue of $72 million. Advantages: low cost (processing fee of ￥200 per ton), wear resistance, and can be regenerated 5 times.