Technology for complex processing of pyrite concentrate in a nitric acid autoclave

Isokov, Y.Kh, Ziyoyev, B.T., Toshpo'latova, M.J., Xudoyberdiyeva, F., Junaydullayeva, J.J., Normurodova, R.R., Rayimova, Z.A.

Қўқон ДПИ. Илмий хабарлар · 2026-yil

Annotatsiya

This paper presents the scientific principles and experimental results of a nitric acid autoclave oxidative leaching technology for pyrite polymetallic concentrate produced during copper production at the Olmaliq Mining and Metallurgical Combine (OMMC). Thermodynamic and kinetic regularities were investigated within the Fe-S-N-H₂O system, and optimal process parameters were determined. Experiments demonstrated that under the conditions of 110–112°C, a HNO₃ concentration of 15–20%, a Solid-to-Liquid ratio (S:L) of 1:3–3.5, oxygen pressure of 0.9–1.0 MPa, and a process duration of 1.5–2.0 hours, the following results are achieved: elemental sulfur recovery reaches 83–85%, iron as Fe₂O₃ reaches 92–97%, and gold and silver are 100% concentrated in the leach cake. Copper and other non-ferrous metals pass into the solution at a rate of 98–99%. The technology has been tested under the industrial conditions of the OMMC research and production association and has been confirmed to be highly effective.

Maqola ma’lumotlari
MualliflarIsokov, Y.Kh, Ziyoyev, B.T., Toshpo'latova, M.J., Xudoyberdiyeva, F., Junaydullayeva, J.J., Normurodova, R.R., Rayimova, Z.A.
JurnalҚўқон ДПИ. Илмий хабарлар
NashriyotҚўқон давлат педагогика институти
ISSN3030-3958
Nashr sanasi2026-07-02
Jild8
Son5
Betlar238-244
TilIngliz
DOI10.70728/a.series.tab.v08.i05.033
Indeksga qo‘shilgan2026-08-27

DOI: 10.70728/a.series.tab.v08.i05.033 · Maqolaning asl sahifasi

Kalit so‘zlar

pyrite concentrate, nitric acid autoclave, hydrometallurgy, polymetallic ore, pH diagram, elemental sulfur, hematite, rare metals, kinetics, diffusion, OMMC (Olmaliq Mining and Metallurgical Complex), complex processing.

Iqtibos keltirish

APAIsokov, Y.Kh, Ziyoyev, B.T., Toshpo'latova, M.J., Xudoyberdiyeva, F., Junaydullayeva, J.J., Normurodova, R.R., & Rayimova, Z.A. (2026). TECHNOLOGY FOR COMPLEX PROCESSING OF PYRITE CONCENTRATE IN A NITRIC ACID AUTOCLAVE. Қўқон ДПИ. Илмий хабарлар, 8(5), 238-244. https://doi.org/10.70728/a.series.tab.v08.i05.033
GOST (OAK)Isokov, Y.Kh va b. TECHNOLOGY FOR COMPLEX PROCESSING OF PYRITE CONCENTRATE IN A NITRIC ACID AUTOCLAVE // Қўқон ДПИ. Илмий хабарлар. – 2026. – T. 8, № 5. – P. 238-244. – DOI: 10.70728/a.series.tab.v08.i05.033.
MLAIsokov, Y.Kh, Ziyoyev, B.T., Toshpo'latova, M.J., Xudoyberdiyeva, F., Junaydullayeva, J.J., Normurodova, R.R., and Rayimova, Z.A. “TECHNOLOGY FOR COMPLEX PROCESSING OF PYRITE CONCENTRATE IN A NITRIC ACID AUTOCLAVE.” Қўқон ДПИ. Илмий хабарлар, 8(5), 238-244, 2026. https://doi.org/10.70728/a.series.tab.v08.i05.033
ChicagoIsokov, Y.Kh, Ziyoyev, B.T., Toshpo'latova, M.J., Xudoyberdiyeva, F., Junaydullayeva, J.J., Normurodova, R.R., and Rayimova, Z.A. “TECHNOLOGY FOR COMPLEX PROCESSING OF PYRITE CONCENTRATE IN A NITRIC ACID AUTOCLAVE.” Қўқон ДПИ. Илмий хабарлар, 8(5), 238-244 (2026). https://doi.org/10.70728/a.series.tab.v08.i05.033
HarvardIsokov, Y.Kh, Ziyoyev, B.T., Toshpo'latova, M.J., Xudoyberdiyeva, F., Junaydullayeva, J.J., Normurodova, R.R., and Rayimova, Z.A (2026) ‘TECHNOLOGY FOR COMPLEX PROCESSING OF PYRITE CONCENTRATE IN A NITRIC ACID AUTOCLAVE’, Қўқон ДПИ. Илмий хабарлар, 8(5), 238-244. https://doi.org/10.70728/a.series.tab.v08.i05.033
BibTeX
@article{isokovykh2026,
  title = {TECHNOLOGY FOR COMPLEX PROCESSING OF PYRITE CONCENTRATE IN A NITRIC ACID AUTOCLAVE},
  author = {Isokov, Y.Kh and Ziyoyev, B.T. and Toshpo'latova, M.J. and Xudoyberdiyeva, F. and Junaydullayeva, J.J. and Normurodova, R.R. and Rayimova, Z.A.},
  journal = {Қўқон ДПИ. Илмий хабарлар},
  year = {2026},
  volume = {8},
  number = {5},
  pages = {238-244},
  doi = {10.70728/a.series.tab.v08.i05.033},
  url = {https://doi.org/10.70728/a.series.tab.v08.i05.033}
}

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