从硫化铅锌矿浮选尾矿中获得合金的理论和实验证明

IF 1.3 4区工程技术 Q4 CHEMISTRY, PHYSICAL

Physicochemical Problems of Mineral Processing Pub Date : 2023-03-03 DOI:10.37190/ppmp/161853

V. Shevko, Baktygul Makhanbetova, D. Aitkulov

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引用次数: 1

摘要

本文介绍了Shalkiya矿床铅锌矿尾矿烧成炉渣生产硅质铁合金的热力学和实验研究结果。基于吉布斯能最小化原理使用HSC-6.0配合物进行的热力学建模表明，相互作用发生在CaSiO3、FeSiO3、MgSiO3、K2O、SiO2、FeSi、Fe5Si3、SiC、Fe3Si、Si、SiOg、FeSi2.33、FeSi2、CaSi、Zn、Zng、Pb、Pbg的形成过程中；系统中铁含量的增加允许在1800°C时将硅提取到合金中的程度提高到76%，从而将合金中的硅浓度从41%降低到24%；FS25级硅铁在1752-1867°C下形成，铁含量为88-100%，FS45级硅铁在1863-1900°C下和铁含量为20-22.4%。将含有63.83%煅烧尾矿渣、19.15%焦炭和17.02%钢屑的炉料电熔融，可以获得FS45级硅铁（44.1-43.9%Si），提取硅69.7%，升华锌和铅含量为32-38%。所获得的结果允许对硫化铅锌尾矿进行复杂处理，不仅提取有色金属，还提取铁合金中的硅。

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

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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来源期刊

Physicochemical Problems of Mineral Processing CHEMISTRY, PHYSICAL-MINING & MINERAL PROCESSING

自引率

6.70%

发文量

期刊介绍： Physicochemical Problems of Mineral Processing is an international, open access journal which covers theoretical approaches and their practical applications in all aspects of mineral processing and extractive metallurgy. Criteria for publication in the Physicochemical Problems of Mineral Processing journal are novelty, quality and current interest. Manuscripts which only make routine use of minor extensions to well established methodologies are not appropriate for the journal. Topics of interest Analytical techniques and applied mineralogy Computer applications Comminution, classification and sorting Froth flotation Solid-liquid separation Gravity concentration Magnetic and electric separation Hydro and biohydrometallurgy Extractive metallurgy Recycling and mineral wastes Environmental aspects of mineral processing and other mineral processing related subjects.