Recovery of gold and silver from gold tailings by carbon slurry method
Recovered by CIP tailings gold from gold silver, gold Yindongpo put into operation 100t / d beneficiation plant in 1981, 1985 after the beneficiation process of CIP process, to improve the production capacity of 250t / d. In Before the completion of the new tailings pond in 1992, the old tailings pond stocked about 900,000 tons of recoverable tailings with high gold content, containing about 1665 Kg of gold and 25 tons of silver. In 1996, the ore dressing plant began to use the original 250t/d carbon slurry plant for industrial practice of tailings treatment. The whole mud cyanide carbon slurry gold extraction process was used to recover gold and silver from old tailings. The tailings process is as follows: the mining of tailings utilizes a simple chain bucket sand mining vessel with a capacity of 250t/d. The tailings are transferred from the sand pump to the 250t/d carbon slurry plant after being adjusted on the ship. * A closed-circuit grinding consisting of a 3000mm ball mill and a spiral classifier. The overflow is fed into a 250mm cyclone, which forms a two-stage closed-circuit grinding with the No. 2 ball mill. The cascade overflows to a 18m concentration tank, which is leached and adsorbed after concentration. In order to expand the processing capacity during the leaching adsorption process. Further improve the index, use the negative oxygen machine instead of the vacuum pump to supply oxygen, adopt the side immersion and side suction process, produce the loaded gold charcoal, send the desorption point solution, and produce the finished gold. 
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