L. M. Karimova, A. S. Korabaev, T. O. Oleinikova, I. V. Terent’eva, A. M. Magaz
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引用次数: 0
Abstract
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.
期刊介绍：
Theoretical Foundations of Chemical Engineering is a comprehensive journal covering all aspects of theoretical and applied research in chemical engineering, including transport phenomena; surface phenomena; processes of mixture separation; theory and methods of chemical reactor design; combined processes and multifunctional reactors; hydromechanic, thermal, diffusion, and chemical processes and apparatus, membrane processes and reactors; biotechnology; dispersed systems; nanotechnologies; process intensification; information modeling and analysis; energy- and resource-saving processes; environmentally clean processes and technologies.
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