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The so-called heap leaching cyanide method for gold extraction is to stack the low-grade ore containing gold on the anti-reference pad and spray it on the heap with a low concentration of alkaline cyanide solution to dissolve the gold in the ore. The gold-containing precious liquid is leached from the heap, collected and flowed into the liquid storage tank, and then the gold is recovered from the noble liquid by the activated carbon method, the metal zinc replacement method or the direct electrolytic precipitation method, and the lean liquid after the recovery of the gold is returned to the leaching. After the operation, the tailings after gold extraction are discharged after being disinfected.
At present, the industry uses activated carbon adsorption to recover gold from the precious liquid.
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