Theoretical and experimental substantiation of obtaining an alloy from flotation tailings of lead-zinc sulfide ore

• Autorzy: Shevko Victor M. , Makhanbetova Baktygul A. , Aitkulov Dosmurat K.

Identyfikatory

DOI

10.37190/ppmp/161853

• Języki publikacji: EN

Abstrakty

EN

The article presents the results of thermodynamic and experimental research on the processing of cinders from the firing of Shalkiya deposit lead-zinc ore tailings with the production of siliceous ferroalloys. Thermodynamic modeling carried out using the HSC-6.0 complex based on the Gibbs energy minimization principle showed that the interaction occur with the formation of CaSiO₃, FeSiO₃, MgSiO₃, K2OˑSiO₂, FeSi, Fe₅Si₃, SiC, Fe₃Si, Si, SiO_g, FeSi_2.33, FeSi₂, CaSi, Zn, Zn_g, Pb, Pb_g; an increase in the iron amount in the system allows increasing the silicon extraction degree into the alloy at 1800°C to 76%, to reduce the silicon concentration in the alloy from 41 to 24%; FS25 grade ferrosilicon formed at 1752-1867°C in the presence of 88-100% iron, and FS45 grade ferrosilicon – at 1863-1900°C and 20-22.4% iron. Electric melting of a charge containing 63.83% calcined cinder of tailings, 19.15% coke, and 17.02% steel chips allows to obtain FS45 grade ferrosilicon (44.1-43.9% Si) with the extraction of 69.7% silicon and sublimates with the content of 32-38% zinc and lead. The results obtained allow complex processing of lead-zinc sulfide ore tailings with the extraction of not only non-ferrous metals, but also silicon in the ferroalloy.

Słowa kluczowe

EN

lead-zinc ore; cinder; enrichment tailings; thermodynamic modeling; electric melting; ferrosilicon; lead-zinc sublimates

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2023
• Tom: Vol. 59, iss. 1
• Strony: art. no. 161853
• Opis fizyczny: Bibliogr. 45 poz., rys., tab., wykr.

Twórcy

autor

Shevko Victor M.

• Auezov South Kazakhstan University, Kazakhstan, 160002, Shymkent, Tauke Khan, 5

• https://orcid.org/0000-0002-9814-6248

autor

Makhanbetova Baktygul A.

• Auezov South Kazakhstan University, Kazakhstan, 160002, Shymkent, Tauke Khan, 5

• https://orcid.org/0000-0002-4761-5251

autor

Aitkulov Dosmurat K.

• National Center on complex processing of mineral raw materials of the Republic of Kazakhstan, Kazakhstan, 050036, Almaty, Jandossov, 67

• https://orcid.org/0000-0003-2571-6710

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