Hydrochemical Investigation of Dissolving Sulfide Gold-Bearing Raw Material of Uderey Deposit

Abstract:

This article describes a method for the hydrochemical dissolution of a sulfide gold-bearing raw material from the Uderey’s deposit using nitric acid. The chemical and phase compositions of the studied material, mainly represented by compounds of silicon, sodium, arsenic, iron and sulfur, are investigated. Phase composition: pyrite, arsenopyrite, quartz, thenardite. The dependences of the influence of temperature, time, and the liquid to solid ratio on extracting the main components in the solution were determined by methods of mathematical experiment planning. The calculated values ​​of the determination coefficients testify to the adequacy of the chosen two-level model. The optimum parameters of the process were obtained: L/S ratio = 8; the nitric acid concentration was 6 M; experiment duration was 75 minutes.

• Periodical: Materials Science Forum (Volume 946)
• Pages: 535-540
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.946.535
• Online since: February 2019
• Authors: Oleg A. Dizer*, Denis A. Rogozhnikov, Stanislav S. Naboichenko
• Keywords: Experiment Planning, Gold-Bearing Raw Materials, Mathematical Model, Nitric Acid Leaching, Refractory Ores

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