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Scientific, Technological and Production Journal
ISSN 2079–3332 (print)
ISSN 3034-6835 (online)
founded in 2001

Determination of conditions for direct cyanidation of flotation concentrates with different quality characteristics

Original articles: 2024 No 6

Determination of conditions for direct cyanidation of flotation concentrates with different quality characteristics

DOI: 10.56195/20793332_2024_6_125_131

Read in pdf K. A. Nogaeva1, B. M. Myrzaliev2, M. S. Molmakova1, A. Turarbek1
  1. Kyrgyz State Technical University named after. I. Razzakov, Kyrgyz Mining and Metallurgical Institute named after. Academician U. Asanaliyev, Bishkek, Kyrgyz Republic
  2. «Alliance Altyn» Kyrgyz Republic, Bishkek, Kyrgyz Republic
p. 125-131, No.6/2024
Abstract:
The study has established that flotation concentrates with different gold content obtained by processing iron-oxidized low-sulfide gold-copper ore have an almost identical chemical composition with the rock-forming elements. Changes in gold content correlate with changes in the concentrations of Cu, Pb, Zn, S, As, C – there is an increase in the content of these components from a flotation concentrate poor in gold to a flotation concentrate with a higher gold content. The main minerals of copper and iron have been determined, the main part of which is oxidized. Phase analysis showed that the main part of gold in concentrates is in free form, and intergrown with copper minerals as well. Laboratory studies determined equal optimum time for leaching gold with cyanide for all flotation concentrates, regardless of gold content. At the same time, the extraction of copper into the solution is about 13-20%. Optimum concentrations of sodium cyanide have been determined. It is recommended to continue research for reducing the consumption of sodium cyanide and releasing by-products in the form of high-quality copper concentrate.
Keywords:
flotation concentrate, extraction, cyanidation, concentration, leaching, kinetics
For citation:
Nogaeva K. A., Myrzaliev B. M., Molmakova M. S., Turarbek A. Determination of conditions for direct cyanidation of flotation concentrates with different quality characteristics. Mine Surveying and Subsurface Use. 2024;(6):125-131. (In Russ.). https://doi.org/10.56195/20793332_2024_6_125_131.
Information about the authors:
  1. Kulzhamal A. Nogaeva - Dr. Sc. (Eng.), Professor of the Department of Mineral Processing and Metallurgical Processes of the Kyrgyz Mining and Metallurgical Institute named after Academician U. Asanaliev, Kyrgyz State Technical University after I. Razzakov, 720044, Bishkek, Kyrgyz Republic, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
  2. Bakyt M. Myrzaliev – senior technologist of a gold recovery plant “Alliance Altyn”, 720040, Bishkek, Kyrgyz Republic, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
  3. Molmakova Mira Saparovna – Cand. Sci. (Eng.), Associate Professor of the Department of Mineral Processing and Metallurgical Processes of the Kyrgyz Mining and Metallurgical Institute named after. Academician U. Asanaliev, Kyrgyz State Technical University after I. Razzakova, 720044, Bishkek, Kyrgyz Republic, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
  4. Turarbek kyzy Aizhan – teacher of the “Department of Mineral Processing and Metallurgical Processes” of the Kyrgyz Mining and Metallurgical Institute named after. Academician U. Asanaliev, Kyrgyz State Technical University named after. I. Razzakov, 720044, Bishkek, Kyrgyz Republic, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
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