Studying the Process of Gold Leaching after the Oxidative Roasting of a Refractory Gold-Bearing Concentrate
Karimova L.M. Korabaev A.S. Oleinikova T.O. Terent’eva I.V. Magaz A.M.
April 2024Pleiades Publishing
Theoretical Foundations of Chemical Engineering
2024#58Issue 2444 - 449 pp.
Studies of gold leaching from a roasted gravity concentrate derived from a refractory gold-bearing ore from the Akzhal deposit (Republic of Kazakhstan) are carried out. The gravity concentrate obtained has a yield of 7.47%, a gold content of 21.3 g/t, and a recovery of 65.15% from the –0.071 mm class ore ground to 70%. The major minerals in the concentrate sample are quartz, albite, muscovite, arsenopyrite, pyrite, organic matter, and calcium oxides. In the process of oxidative roasting, the sulfides are completely oxidized. Partial functions are derived for the Jin Chan and NaCN reagent concentration, leaching time, and grinding fineness, along with the generalized equation used to calculate the rate of gold leaching from the roasted concentrate.
centrifugal dressing , gold-bearing ore , gravity concentrate , Jin Chan reagent , roasting
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KazHidroMed’ LLC, Karaganda, 100000, Kazakhstan
KazHidroMed’ LLC
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