OLMALIQ KMK MIS SHLAKLARINI PIRIT BILAN SULFIDLAB MISDAN TOZALASH: TERMODINAMIK VA GIDRODINAMIK TAHLIL

Статьи

OLMALIQ KMK MIS SHLAKLARINI PIRIT BILAN SULFIDLAB MISDAN TOZALASH: TERMODINAMIK VA GIDRODINAMIK TAHLIL

Nuraliyev Oybek Ulug‘bek o‘g‘li

Islom Karimov nomidagi Toshkent davlat texnika universiteti, “Metallurgiya” kafedrasi

Matkarimov Soxibjon Turdaliyevich

Islom Karimov nomidagi Toshkent davlat texnika universiteti, “Metallurgiya” kafedrasi

Akramov O‘ral Akram o‘g‘li

Islom Karimov nomidagi Toshkent davlat texnika universiteti, “Metallurgiya” kafedrasi

Published October 21, 2026

Issue Vol. 4 No. 1 (2026): Journal of Global Scientific Innovations

Pages 62-77

DOI 10.66639/hs62jv75

Open Access

Abstract

Maqolada “Olmaliq KMK” AJ mis eritish shlaklarini shlak tozalovchi elektr pechda pirit (FeS₂) qo‘shib misdan tozalash jarayonining termodinamik va gidrodinamik asoslari o‘rganilgan. Tadqiqot maqsadi – shlakda erigan va mexanik ilashib qolgan misni ajratib olish shartlarini aniqlash hamda pirit sarfining maqbul miqdorini asoslash. Ulix yaqinlashuvida Cu₂O ning FeS bilan sulfidlanishi, piritning dissotsiatsiyasi, magnetitning FeS va uglerod bilan qaytarilishi reaksiyalari uchun Gibbs energiyalari hisoblangan. 1250 °C da Cu₂O + FeS = Cu₂S + FeO reaksiyasining muvozanat konstantasi 2,1·10⁴ ga teng, ya’ni erigan mis deyarli to‘liq sulfid shaklga o‘tadi; FeS magnetitni 896–958 °C dan yuqori haroratda qaytaradi. Shteyn tomchilarining cho‘kishi Stoks qonuni va tomchilar o‘lchamining log-normal taqsimoti asosida, qattiq magnetitning qovushqoqlikka ta’siri esa Roscoe tenglamasi bilan modellashtirilgan hamda 1 t shlak uchun moddiy balans tuzilgan. Natijalar misning shlakdagi yo‘qotilishini kimyoviy emas, asosan gidrodinamik omillar – tomchilar o‘lchami va shlak qovushqoqligi belgilashini ko‘rsatdi. d₅₀ = 100 μm, μ = 0,3 Pa·s va 4 soat tindirishda shlakdagi mis 0,90 % dan 0,41 % gacha kamayadi. Maqbul pirit sarfi 1 t shlakka 10–12 kg deb baholangan. Tozalangan shlak keyingi bosqichda temirni ajratib olish uchun qulay xomashyo hisoblanadi.

Keywords: mis shlaki, shlakni tozalash, pirit, sulfidlash, shteyn, magnetit, Stoks qonuni, Olmaliq KMK.

Maqolani onlayn o'qish

Maqola matni yuklanmoqda, iltimos kuting...

References

[1] M. E. Schlesinger, M. J. King, K. C. Sole, and W. G. Davenport, Extractive Metallurgy of Copper, 5th ed. Oxford, U.K.: Elsevier, 2011.
[2] A. V. Vanyukov and V. Ya. Zaitsev, Shlaki i shteiny tsvetnoi metallurgii [Slags and Mattes of Non-Ferrous Metallurgy]. Moscow, USSR: Metallurgiya, 1969 (in Russian).
[3] B. Gorai, R. K. Jana, and Premchand, “Characteristics and utilisation of copper slag – a review,” Resour. Conserv. Recycl., vol. 39, no. 4, pp. 299–313, 2003.
[4] Y. Li, S. H. Yang, C. B. Tang, Y. M. Chen, J. He, and M. T. Tang, “Reductive-sulfurizing smelting treatment of smelter slag for copper and cobalt recovery,” J. Min. Metall. Sect. B-Metall., vol. 54, no. 1, pp. 73–79, 2018, doi: 10.2298/JMMB160315049L.
[5] H. Zhang, B. Li, Y. Wei, and H. Wang, “The settling behavior of matte particles in copper slag and the new technology of copper slag cleaning,” J. Mater. Res. Technol., vol. 15, pp. 6216–6230, 2021, doi: 10.1016/j.jmrt.2021.11.061.
[6] A. Schmidt, V. Montenegro, and G. D. Wehinger, “Transient CFD modeling of matte settling behavior and coalescence in an industrial copper flash smelting furnace settler,” Metall. Mater. Trans. B, vol. 52, no. 1, pp. 405–413, 2021, doi: 10.1007/s11663-020-02026-0.
[7] J.-P. Jylhä and A. Jokilaakso, “CFD-DEM models for matte droplet settling in a flash smelting settler,” Heliyon, vol. 9, no. 11, Art. no. e21570, 2023.
[8] P. Sarfo, A. Das, G. Wyss, and C. Young, “Recovery of metal values from copper slag and reuse of residual secondary slag,” Waste Manag., vol. 70, pp. 272–281, 2017.
[9] A. Khasanov, T. Sirozhov, Sh. Utkirova, and M. Murtozaeva, “Hydrometallurgical and flotation methods of slag depletion,” Universum: Tekhnicheskie Nauki, no. 5(98), pp. 56–58, 2022.
[10] Sh. Mukhamedzhanova, O. Nuraliyev, Zh. Ismailov, B. Karimzhonov, and Q. Ochildiyev, “Improvement of the technology of copper production by involving in the processing of industrial waste JSC “Almalyk MMC” in Uzbekistan,” in XV Int. Sci. Conf. “INTERAGROMASH 2022”: Global Precision Ag Innovation 2022, vol. 2, A. Beskopylny, M. Shamtsyan, and V. Artiukh, Eds., Lecture Notes in Networks and Systems, vol. 575. Cham, Switzerland: Springer, 2023, pp. 2193–2199.
[11] S. Mukhamedzhanova and S. Matkarimov, “Development of resource-saving technology for copper production at “Almalyk MMC” JSC,” E3S Web Conf., vol. 525, Art. no. 04001, 2024, doi: 10.1051/e3sconf/202452504001.
[12] D. R. Lide, Ed., CRC Handbook of Chemistry and Physics, 85th ed. Boca Raton, FL, USA: CRC Press, 2004.
[13] R. A. Robie and B. S. Hemingway, “Thermodynamic properties of minerals and related substances at 298.15 K and 1 bar (105 pascals) pressure and at higher temperatures,” U.S. Geol. Surv., Washington, DC, USA, Bull. 2131, 1995.
[14] R. Roscoe, “The viscosity of suspensions of rigid spheres,” Br. J. Appl. Phys., vol. 3, no. 8, pp. 267–269, 1952.