ANALYSIS AND USE OF Mn ORE FINES

Semanova, Z.; Legemza, Jaroslav

doi:10.12776/ams.v20i4.435

Cited by 5 publications

(3 citation statements)

References 14 publications

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“…Проведено сравнение различных образцов мелкозернистой марганцевой руды для последующего производства агломератов способом спекания [26]. Анализ физико-химических свойств образцов марганцевой руды из Боснии (1) и Герцеговины (2) показали, что гранулометрия образцов влияет на их химический состав.…”

Section: способы агломерации марганцевой мелочиunclassified

Processing of low-quality manganese-containing raw materials to obtain pellets for production ferromanganese alloys. Review

Tastanova,

Kuldeyev,

Temirova

et al. 2023

EJSU

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Substandard ores and technogenic wastes can be considered as an additional source of raw materials due to the limited resources of mineral raw materials with a high content of manganese. The article presents an overview of studies intended to process low-quality manganese-containing raw materials by beneficiation of them with the production of manganese concentrates, agglomeration of manganese fines with the formation of pellets, and smelting of agglomerates into ferromanganese alloys. The main raw material sources of manganese are characterized. Manganese ores are divided into three main typesoxide, siliceous and carbonate ones. The method to beneficiate the raw material is chosen depending on the raw material type. The application areas of manganese alloys are described -they are used in the form of ferromanganese and ferrosilicomanganese to produce steel and cast iron in ferrous metallurgy; as an alloying metal in bronze, brass, most aluminum and magnesium alloys in non-ferrous metallurgy. The beneficiation processes for low-quality manganese-containing raw materials -substandard ores and technogenic wastes are considered. A promising direction in the beneficiation of ferromanganese ores is magnetic separation. The extraction of manganese from technogenic sources -ore fines, sludge tailings of processing plants is of great ecological and practical importance. Methods for agglomeration of manganese fines with the production of pellets, briquettes, the influence of the content of acidic and basic oxides, the composition of binder materials on the properties of pellets are described. Data on the influence of various factors on the manganese ferroalloy smelting process, the reduction of manganese ore pellets, and the phase transformations occurring during the process are specified.

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Section: способы агломерации марганцевой мелочиunclassified

Processing of low-quality manganese-containing raw materials to obtain pellets for production ferromanganese alloys. Review

Tastanova,

Kuldeyev,

Temirova

et al. 2023

EJSU

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“…Further decrease in mass of the sample, which is evident from the TG curve and another less pronounced coherence peak of the DTG curve is attributed to the decomposition of manganese oxides. On the basis of the 5) [21]. (Fig.…”

Section: Fig 2 Granulometric Composition Of Mn Ore Samplesmentioning

confidence: 99%

STUDY OF PROPERTIES OF Mn ORE FINES AND POSSIBILITIES THEIR UTILIZATION IN THE PRODUCTION OF FeSiMn

Semanova¹,

Legemza²

2015

Acta Metall Slovaca

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This article deals with the analysis of the physical and chemical properties of undersize samples of Mn ore from the mine Buzim in Bosnia and Herzegovina, comparing individual samples, followed by the production of Mn sinter and analysis of the Mn sinter. Mn ore fines are formed in different steps of Mn ores processing. These fines can not be directly put into the ferroalloy furnace. The most suitable way of Mn ore fines processing is sintering and the article deals with this method of processing. On each sample of Mn ore from Bosnia and Herzegovina marked Mn ore 1, Mn ore 2 and Mn ore 3 have been performed the analysis of physical and chemical properties. The results showed that the granulometry of the samples affects their chemical composition. On the sample of Mn ore 1 was performed an experimental laboratory sintering, in which succeeded to produce an Mn sinter. The Mn sinter is suitable for further use in the production of FeSiMn, in terms of low phosphorus content and suitable phase composition, but the Mn sinter had also a high content of SiO 2 , which adversely affect the granulometry and strenght of the sinter.

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“…Additionally, the fine part of the blend is blown out from the furnace and actually rotates in the technological cycle, overloading gas treatment facilities. This leads to the consequences when a large number of ore with the small sizes is practically unsuitable for direct use in production processes and therefore requires special preparation, namely granulation [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Manganese Sinter Production with Wood Biomass Application

Kieush

Boyko

Koveria

et al. 2020

KEM

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A large amount of finely dispersed manganese ore left after benefication operations or blown out from the furnaces is unsuitable for direct use in electric furnaces and blast furnaces, therefore it is necessary to granulate it in order to have the efficient use of its fine ore particles in metallurgy. To make our research more of practical use, we found it is reasonable not only work over manganese fines sintering but also to attempt mitigating the negative effect on the environment produced by the further sintering and apply the biofuel within the total fuel mass. Under laboratory conditions, the studies have been carried out with the objective to obtain manganese sinter, in which wood biomass is applied, namely initial and pre-pyrolyzed, at temperatures of 673, 873, 1073 and 1273 K. The amount of biofuel in the sinter blend was 25 wt.%. It has been established that the biomass use causes the decrease in the specific capacity of the sintering plant. However, for the efficient manganese ores sintering process, the biofuel of high pyrolysis temperature of 1273 K is required. To achieve the specific capacity and the yield to be as high as those when coke breeze is only used, the amount of the biofuel for manganese ore sintering should be less than 25 wt.% of the solid fuel. Additionally, it has been revealed that the further increase in the biofuel ratio in the total fuel amount is possible on condition that its reactivity is decreased, or larger particles of the biofuel are used.

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ANALYSIS AND USE OF Mn ORE FINES

Cited by 5 publications

References 14 publications

Processing of low-quality manganese-containing raw materials to obtain pellets for production ferromanganese alloys. Review

Processing of low-quality manganese-containing raw materials to obtain pellets for production ferromanganese alloys. Review

STUDY OF PROPERTIES OF Mn ORE FINES AND POSSIBILITIES THEIR UTILIZATION IN THE PRODUCTION OF FeSiMn

Manganese Sinter Production with Wood Biomass Application

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