Evaluation of metallurgical value of manganese raw materials

Authors

  • V.V. Krivenko Technological institute of the State university of economics and technology, Kryvyi Rih, Ukraine
  • V.P. Lyalyuk Technological institute of the State university of economics and technology, Kryvyi Rih, Ukraine https://orcid.org/0000-0001-7258-2079
  • E.V. Chuprinov Technological institute of the State university of economics and technology, Kryvyi Rih, Ukraine https://orcid.org/0000-0001-8605-3434
  • I.M. Trus National Technical University of Ukraine “ Igor Sikorsky Kyiv polytechnic institute ”, Kyiv, Ukraine https://orcid.org/0000-0001-6368-6933
  • A.M. Ovcharuk The National Metallurgical Academy of Ukraine, Dnipro, Ukraine

DOI:

https://doi.org/10.31498/2225-6733.42.2021.240571

Keywords:

manganese concentrate, ferroalloys, dissociation, reduction, value of raw materials

Abstract

Samples of manganese ores of various chemical and fractional compositions, which are widely used nowadays in the production of manganese ferroalloys at domestic enterprises have been investigated. These include samples of manganese ores from the deposits in Georgia, Brazil, Australia and Ghana. Comprehensive studies of the physical and chemical properties and metallurgical value of manganese raw materials from various deposits, used in the production of ferroalloys in ore-reducing furnaces of uprated power, have been carried out. Return to production of concentrate products of raw materials and wastes of ferroalloy production, the use of which in metallurgical processing without preparation and agglomeration is impossible, have been considered. The results of comparative analytical studies of domestic and foreign manganese ore raw materials are presented. The requirements for quality indicators of manganese ores and concentrates according to the regulatory documents of different countries have been compared. Metallurgical properties and kinetic regularities of recovery of the samples of manganese raw materials from various deposits have been investigated. The optimal share of the use of imported raw materials in the charge mixture for the production of manganese ferroalloys in relation to the required phosphorus content in them has been estimated. In accordance with the standard methods in generator gas atmosphere, studies have been carried out to determine the reducibility and temperature of the onset of manganese ores softening. The recoverability has been determined by the weight loss of the sample by the gravimetric method and controlled by chemical analysis

Author Biographies

V.V. Krivenko, Technological institute of the State university of economics and technology, Kryvyi Rih

Кандидат технічних наук, доцент

V.P. Lyalyuk, Technological institute of the State university of economics and technology, Kryvyi Rih

Доктор технічних наук, професор

E.V. Chuprinov, Technological institute of the State university of economics and technology, Kryvyi Rih

Кандидат технічних наук, доцент

I.M. Trus, National Technical University of Ukraine “ Igor Sikorsky Kyiv polytechnic institute ”, Kyiv

Кандидат технічних наук, доцент

A.M. Ovcharuk, The National Metallurgical Academy of Ukraine, Dnipro

Доктор технічних наук, професор

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Published

2021-05-27

How to Cite

Krivenko, V. ., Lyalyuk, V. ., Chuprinov, E. ., Trus, I. ., & Ovcharuk, A. . (2021). Evaluation of metallurgical value of manganese raw materials. Reporter of the Priazovskyi State Technical University. Section: Technical Sciences, (42), 43–50. https://doi.org/10.31498/2225-6733.42.2021.240571

Issue

No. 42 (2021): Reporter of the Priazovskyi State Technical University. Section: Technical sciences

Section

136 Metallurgy

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