ISSN (print) 1995-2732
ISSN (online) 2412-9003

 

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Abstract

Problem Statement (Relevance): This article describes the results of a study that looked at copper leaching from the flotation tailings of the gold and copper ore of the Kumbel deposit. Relationships of such parameters as sulfuric acid consumption, duration, temperature, solid-to-liquid ratio, were looked at to identify the best conditions for copper leaching. Use of a ferromagnetic powder catalyst is proposed to intensify the sulfuric acid leaching process. Such catalyst helps reduce the leaching kinetics and the solvent consumption. Objectives: The aim of the research is to identify optimal parameters of sulfuric acid leaching of copper from flotation tailings using a catalyst. Methods Applied: IR spectroscopic, X-ray phase, spectral, chemical (using certified methods) analyses. Originality: For sulfuric acid leaching, a ferromagnetic catalyst was used, which helped increase the leaching rate and reduce the consumption of the solvent. Findings: It was found that leaching the flotation tailings of copper-bearing ores by sulfuric acid solutions in the presence of a ferromagnetic catalyst leads to increased copper recovery. Practical Relevance: The results of this research can be useful for mining enterprises striving to utilize man-made waste with the purpose of expanding their raw material base.

Keywords

Copper, leaching, sulfuric acid, temperature, slurry, intensification, ferromagnetic catalyst, recovery.

Mira S. Molmakova – PhD (Eng.), Associate Professor

Asanaliev Institute of Mining and mining technology at the Razzakov Kyrgyz State Technical University, Bishkek, Kyrgyz Republic. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Almaz K. Kozhonov – PhD (Eng.), General Director

Geotechservice Technology, Bishkek, Kyrgyz Republic.Е-mail This email address is being protected from spambots. You need JavaScript enabled to view it.

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