Complex processing of oxidized copper and zinc oxide ores with simultaneous production of several products

Shevko, Viktor; Zharmenov, A. A.; Aitkulov, Dosmurat; Терликбаева, А. Ж.

doi:10.37190/ppmp/131091

Cited by 3 publications

(2 citation statements)

References 2 publications

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“…Zinc is obtained by pyro-or hydrometallurgical methods, involving preliminary enrichment (Sousa et al, 2017;Mütevellioğlu and Yekeler, 2019;Jian et al, 2019;Onukwuli and Nnanwube, 2022;Omarova et al, 2022). When enriching lead-zinc sulfide ores, only up to one tenth of the ore passes into a concentrate (Turkebaev and Sadykov, 1988;Shevko et al, 2021a). The rest (most) is stored in dumps, is used to fill the worked-out area (Feigl et al, 2010;Behera et al, 2020;Akkaya et al, 2021) or, at best, is used in the construction industry (for example, as an aggregate in concrete (Evdokimov et al, 2016;Peng et al, 2021;Onukwuli and Nnanwube, 2022;Ibrahim and Atmaca, 2022), the production of silicate and ceramic wall materials (Liu et al, 2019;Zhou et al, 2021;Zou et al, 2022), cement and concrete (Liang et al, 2017;Saedi et al, 2022)).…”

Section: Introductionmentioning

confidence: 99%

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

Shevko¹,

Makhanbetova²,

Aitkulov³

2023

Physicochem. Probl. Miner. Process.

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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, SiOg, FeSi2.33, FeSi2, CaSi, Zn, Zng, Pb, Pbg; 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.

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Section: Introductionmentioning

confidence: 99%

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

Shevko¹,

Makhanbetova²,

Aitkulov³

2023

Physicochem. Probl. Miner. Process.

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“…To comprehensively process this type of a raw material, we have proposed a technology for processing of the tailings formed at the leaching the BalaSauyskandyk vanadium-containing quartzites (black shales) and producing various grades of ferrosilicon from them. A similar technology was developed by us for processing of some siliceous ores and industrial wastes [19,20].…”

Section: Introductionmentioning

confidence: 99%

Comprehensive Processing of Vanadium-Containing Black Shale Tailings

Shevko

Aitkulov

Badikova

2022

Period. Polytech. Chem. Eng.

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This article examines results of the thermodynamic modeling of interaction of the briquetted tailings obtained at hydrometallurgical leaching of the vanadium-containing quartzites (black shales) with carbon and iron, determination of Si, V, Fe, C equilibrium distribution and optimal conditions for the formation of various grades of ferrosilicon, as well as the electric melting to produce silicon alloys. The research techniques were the method of thermodynamic modeling using the HSC-6.0 software package (Outokumpu), the second-order rotatable designs (Box-Hunter plans) and electrofusion in an arc furnace. It was established that an increase in the amount of iron from 11 to 39% makes it possible to increase the extraction degree of silicon into an alloy up to 72–73% in the temperature of 1800–2000 °C, in the process the silicon concentration in the alloy decreases from 57–65.7 to 40.5–40.9%; FS45-grade ferrosilicon at the extraction degree of silicon in the alloy of 70–72.6% can be formed in the temperature of 1750–2000 °C in the presence of 29–39% Fe, FS50 ferrosilicon is formed at 25.5–35.0% Fe and 1870–2000 °C, and FS65 ferrosilicon – in the temperature of 1895–2000 °C in the presence of 11–12.7% Fe. The FS45-grade ferrosilicon was formed during electric smelting of a charge containing 57% of the briquettes, 21% of coke, 22% of steel chips, and the FS50-grade ferrosilicon – using a charge consisting of 61% of the briquettes, 22% of coke and 17% of steel chips; the silicon extraction degree into the alloys is 73–79%.

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