The Shalkiya deposit finely disseminated lead-zinc ore processing technology improvement

Semushkina, L. V.; Turysbekov, D. K.; Tusupbaev, N. K.; Bekturganov, N. S.; Mukhanova, A. A.

doi:10.17580/or.2015.02.02

Cited by 3 publications

(1 citation statement)

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“…Nevertheless, the project for the expansion of Shalkiya mine was completed, which also provided for low extraction rates of metals into concentrates: zinc -70%, lead -49% with tailings -91.2% (O'Beirne et al, 2015). Recently, several new options for the enrichment of Shalkiya ore were developed (Telkov et al, 2019;Seksenova et al, 2021), which allowed to increase the extraction of Zn from 41.9 to 57.9%, Pb to 51.3% (Mukhanova et al, 2015;Semushkina et al, 2015). Nevertheless, losses with metal tailings were significant (Zn up to 16-25%, Pb up to 46%).…”

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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Optimization of pyroprocessing of zinc sulfide ore to produce ferroalloy and zinc

Makhanbetova,

Shevko,

Aitkulov

et al. 2024

E3S Web of Conf.

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The article presents the results of thermodynamic analysis and experiments on the electric smelting of Shalkiya ore (5.2% of ZnS, 1.0% of PbS, 50% of SiO2) with the joint producing a silicon-containing ferroalloy and extracting zinc and lead into sublimates. The studies included the thermodynamic modeling using the HSC-6.0 software package and electric smelting in an arc furnace. It was established that the interaction in a ZnS-Fe3O4-2C system under equilibrium conditions is of a stepwise nature with the initial reduction of Fe3O4 to Fe and FeO at 600-1000 °C, then the interaction of ZnS with Fe at 1100-1800 °C with the formation of gaseous zinc, and the interaction of ZnS with FeO with the predominant formation of zinc at temperatures above 1600 °C. The electric smelting a charge containing the Shalkiya ore, coke, magnetite concentrate (85.9% of Fe3O4) and steel shavings allowed us to establish that FeSi45 grade ferrosilicon (41.8-44.6% of Si), with the extraction of 80-85.4% of Si, can be produced in the presence of 24.9-30% of coke with the replacement of magnetite’s iron by steel shavings’ iron from 20.9 to 91.8%. A lower degree of this replacement is associated with intensive development of foaming and a decrease in the extraction of silicon into the alloy. At least 98% of zinc and 96% of lead are extracted into the resulting sublimates containing 29.4% of zinc and 15.1% of lead.

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Substantiation of Gravity Concentration to the Shalkiya Deposit Lead-Zinc Ore

et al. 2019

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The Shalkiya deposit finely disseminated lead-zinc ore processing technology improvement

Cited by 3 publications

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

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

Optimization of pyroprocessing of zinc sulfide ore to produce ferroalloy and zinc

Substantiation of Gravity Concentration to the Shalkiya Deposit Lead-Zinc Ore

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