Effect of slag basicity in ferromanganese production using ...

2017-5-26  Ferromanganese is one of the most important alloying elements in steel industries. In this work, the production of ferromanganese was carried out using three-phase submerged mini electric arc furnace. The effect of slag basicity due to the addition of a various amount of limestone as fluxing agent on this smelting process was investigated.

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Effect of slag basicity in ferromanganese production using ...

From this experiment, the optimum slag basicity was 0.8 that produced 8.2 kg of ferromanganese with 78.1% Mn, 12.7% Fe, and 8.9% Si. It resulted from 30 kg of manganese ore, 7.5 kg of cokes, and ...

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Effect of basicity on ferromanganese production from ...

The effect of basicity on ferromanganese production from this beneficiated low-grade manganese ore had been investigated clearly in this experiment by using mini submerged arc furnace (SAF). Several basicities for 0.7 and 1.0, was used and it was controlled by the addition of limestone in this smelting process.

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Effect of basicity on ferromanganese production from ...

2017-1-20  Nevertheless, it could not be used optimally in producing ferromanganese due to their low Mn/Fe ratio. In this present study, the... Effect of basicity on ferromanganese production from beneficiated low-grade manganese ore: AIP Conference Proceedings: Vol 1805, No 1

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THE EFFECT OF ALUMINA IN FERROMANGANESE SLAG

2015-5-22  Alumina is one of the major constituents in ferromanganese slags. It is thermochemically stable in the ferro-manganese furnace and goes almost completely to the slag phase. The presence of alumina will mainly influ-ence phase relations and activities of MnO and SiO2 in the oxide systems and finally affect the smeltingprocess. It is also expected to influence the viscosity of liquid slag. The effect of alumina on

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Recovery of Manganese from Ferromanganese Slag by

2020-11-16  Investigations on extraction of manganese from ferromanganese slag, a waste product from a local ferroalloy industry, were carried out using sawdust as a reducing agent. Leaching of manganese was done with sulphuric acid. The effects of particle size, stirring speed, contact time, acid concentration, temperature and dosage of reductant were ...

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THE INFLUENCE OF SLAG COMPOSITION ON THE

2012-4-27  Manganese is one of the most important and common alloying elements. Addition of manganese improves the mechanical properties of the steel (tensile strength, hardness, hardenability, toughness). The presence of manganese also helps to eliminate detrimental sulphur [1, 2]. Ferromanganese is very common alloying input, but it´s expensive. Moreover, after its addition in the liquid steel it cools down the melt. This results in higher energy consumption [3, 4]. It´s possible to achieve partial ferromanganese saving by the reduction of manganese from the MnO-bearing slag in the electric arc furnace (in further EAF). For example by adding cheaper manganese ores, wastes from manganese production, etc. [2, 5]. Thanks to this, the fluidity of EAF slag

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(PDF) The effect of alumina in ferromanganese slag

The properties of ferromanganese slags are suitably described by its basicity and A/S mass ratios. The influence of slag basicity has been discussed in the previous papers. The present paper will...

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Manganese Slag - an overview ScienceDirect Topics

Manganese slag is a by-product of ferromanganese alloy manufacturing. Two kinds of slag can be generated in the production of ferromanganese and ferromanganese–silicon alloys: air-cooled slag also known as lumpy slag, and water-cooled slag also known as granulated slag. 90 Approximately 900 kg of manganese slag is generated per tonne of ferromanganese alloy produced, 90 and the global ...

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The recovery of manganese products from

2014-5-22  A high manganese recovery is vital in rendering the ferromanganese production process economically viable. It is particularly crucial in recovering manganese products from secondary sources such as ferromanganese slag. This industrial waste material contains an appreciable amount of residual manganese that can be economically exploited.

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Effect of slag basicity in ferromanganese production using ...

2017-5-26  Ferromanganese is one of the most important alloying elements in steel industries. In this work, the production of ferromanganese was carried out using three-phase submerged mini electric arc furnace. The effect of slag basicity due to the addition of a various amount of limestone as fluxing agent on this smelting process was investigated.

Get Price

Recovery of Manganese from Ferromanganese Slag by

2020-11-16  Investigations on extraction of manganese from ferromanganese slag, a waste product from a local ferroalloy industry, were carried out using sawdust as a reducing agent. Leaching of manganese was done with sulphuric acid. The effects of particle size, stirring speed, contact time, acid concentration, temperature and dosage of reductant were ...

Get Price

Effect of basicity on ferromanganese production from ...

2017-1-20  Nevertheless, it could not be used optimally in producing ferromanganese due to their low Mn/Fe ratio. In this present study, the... Effect of basicity on ferromanganese production from beneficiated low-grade manganese ore: AIP Conference Proceedings: Vol 1805, No 1

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THE INFLUENCE OF SLAG COMPOSITION ON THE

2012-4-27  The higher yield of manganese would help to save the energy costs and the consumption of relatively expensive ferromanganese alloy. The plant data from 48 EAF campaigns were statistically evaluated. The graphical results in accordance with the majority of references confirmed the positive effect of basicity, %CaO, %Al 2 O 3

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Slags in Production of Manganese Alloys

2014-7-8  liquid metal and slag were observed during the reduction of the Groote Eylandt-Wessels ore mixture. The results in Table 1 show a strong effect of the slag composition on the equilibrium MnO content of the slag. The activity of manganese in the ferromanganese and the activity of MnO in the slags at equilibrium are presented in Table 3,

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Effect of basicity on ferromanganese production from ...

The effect of basicity on ferromanganese production from this beneficiated low-grade manganese ore had been investigated clearly in this experiment by using mini submerged arc furnace (SAF). Several basicities for 0.7 and 1.0, was used and it was controlled by the addition of

Get Price

The recovery of manganese products from

2014-5-22  A high manganese recovery is vital in rendering the ferromanganese production process economically viable. It is particularly crucial in recovering manganese products from secondary sources such as ferromanganese slag. This industrial waste material contains an appreciable amount of residual manganese that can be economically exploited.

Get Price

Effect of Top Slag with Low Basicity on Transformation ...

In order to study the effect of top slag with low basicity on transformation control of inclusions in spring steel deoxidized by Si and Mn, the optimum composition of CaO–SiO 2 –Al 2 O 3 –MgO slag system with low basicity was firstly calculated by FactSage. Then the industrial experiments were carried out based on the results of calculation.

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Phase Characterization of High Basicity Manganese Slags ...

Slag chemistry applied in the AlloyStream process differs from that used in the production of high carbon ferromanganese in the submerged arc furnace. In process development of the AlloyStream process, several pilot plant and demonstration plant campaigns were completed. Slag samples were selected from the samples collected at each tap, throughout the four month pilot plant campaign.

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Reduction and Dissolution Behaviour of Manganese Slag

2020-1-24  Reduction and Dissolution Behaviour of Manganese Slag in the Ferromanganese Process Xiang Li 1,2, Kai Tang 3 and Merete Tangstad 2,* 1 School of Energy andPower Engineering, JiangsuUniversity, 212013, China; [email protected] 2 Department ofMaterials Science andEngineering, Norwegian University Technology,

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Recovery of Manganese from Ferromanganese Slag by

2020-11-16  Investigations on extraction of manganese from ferromanganese slag, a waste product from a local ferroalloy industry, were carried out using sawdust as a reducing agent. Leaching of manganese was done with sulphuric acid. The effects of particle size, stirring speed, contact time, acid concentration, temperature and dosage of reductant were ...

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Slag in the Ferromanganese Process - MDPI

2020-2-24  Abstract: The reduction and liquidus behaviour of manganese slag with different basicities were studied in non-isothermal experiments in the temperature range of 1400–1500 C. Certain amounts of quartz were added to Assmang ore (South Africa), and lime was added to Comilog ore (Gabon), to adjust the charge basicity to 0.5, 0.8 and 1.2.

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Phase Characterization of High Basicity Manganese Slags ...

Slag chemistry applied in the AlloyStream process differs from that used in the production of high carbon ferromanganese in the submerged arc furnace. In process development of the AlloyStream process, several pilot plant and demonstration plant campaigns were completed. Slag samples were selected from the samples collected at each tap, throughout the four month pilot plant campaign.

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Production of high carbon ferromanganese from a

ferromanganese production from manganese ore in Erzincan. Key Words: Smelting, high carbon ferromanganese, pyrometallurgy 1. Introduction Manganese plays a crucial role in the iron and steel industry. As an alloying element, it improves the strength, ... Charge basicity and accordingly, slag basicity were increased by adding lime to

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(PDF) Parameters Affecting the Production of High Carbon ...

In smelting of high carbon ferromanganese, manganese recovery was found to increase by increasing slag basicity [3-10] and decreasing slag viscosity [5,6]. Vol.11, No.1 Comparative Study of the Kinetics 11 Figure 11 illustrates slight effect of much higher basic slag on Mn- recovery.

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THE REDUCTION OF FLUXED AND NON-FLUXED

2021-3-26  Thus experimental investigations examined the effect on manganese recovery fvom the slag and alloy silicon content for variations in reaction time, temperature and the composition of the reducing alloy. The composition of the ore premelt Was also varied to examine the effect of the basicity of the premelt on manganese

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A THESIS SUBMITTED TO THE GRADUATE SCHOOL OF

2010-10-18  ferromanganese by smelting a manganese ore located in Erzincan. Time, charge basicity, fluorspar addition and coke to ore weight ratio were used as experimental

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Slags in ferroalloys production—review of present

2009-8-26  slag basicity will increase the activity of chromium oxides. Also, temperature has a weak lowering effect on the activity of CrO. The activity coefficients of CrO and CrO1.5 increased with increasing oxygen partial pressure and CaO content in the melts. Phase diagrams of slag systems containing chromium oxides

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EXPERIMENTAL MELTING OF HIGH-SILICON

In real industrial conditions, refined ferromanganese is obtained from manganese ore, low-phosphorous manganese slag or silicomanganese withlime, where lime binds silica to calcium silicates [7]. In this paper, tests for ferromanganese smelting were carried out us-ing iron-manganese ores with a high content of silicon from the Bogach and ...

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Effect of Basicity and Boron Oxide in Slags of the AOD ...

The use of fluorspar in modern metallurgical slags, incl. slags of the argon-oxygen decarburization (AOD) process, as a fluxing agent, is associated with many disadvantages. Those disadvantages can be solved by using boron oxide as an alternative, which also provides conditions for direct microalloying of steel with boron. The paper presents the results of thermodynamic modeling of the effect ...

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