LEACHING OF LOW GRADE GOLD ORES BY ALTERNATIVE ROUTE TO CARBON IN LEACHING
DOI:
https://doi.org/10.18540/jcecvl2iss2pp029-041Keywords:
Gold, Leaching, Cyanide, Hidrometallurgy, Gold ores.Abstract
This research work was carried out with the aim of obtaining an alternative route for the leaching of low grade gold ores for an industrial plant which currently employs the Carbon in Leaching process in Uruguay. Bottle roll tests were performed in bottlers of 20 liters and columns of 3 meters to set some parameters, operating criteria and design that enables up the implementation of an industrial plant of leaching using dynamic stacks of up to 4 meters high to treat about 1,000,000 tons of low grade gold ore per year with an average gold content of 0.65 grams per ton of ore and operating with a particle size of 80 percent less than 12.67 mm. The operation time is 3 years reaching an annual output of 455 kilograms of gold.