CONTACT US

Our Address

Science Avenue, High-tech Zone, Zhengzhou City, Henan Province, China

  • Effect of slag basicity in ferromanganese production using ...

    Jul 18, 2013  The chemical composition of ferromanganese and slag was analysed with X-ray fluorescence. 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 12 kg of limestone.

  • Cited by: 1
  • 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 ...

  • THE EFFECT OF ALUMINA IN FERROMANGANESE SLAG

    The Effect of Alumina in Ferromanganese Slag 337 0.2 0.4 0.6 0.8 1.0 40 44 48 52 56 (a) CaO/MgO = 5.6 Basicity = 0.4 1400oC 1300oC 1500oC MnO Liquidus (wt%) A/S ratio

  • Middle- and low-carbon ferromanganese production process

    According to invention, limestone is charged in amount comprising 33-43% of the amount of slag to achieve basicity modulus of melt 1.5-1.8 and silicomanganese is added in molten state in amount 70-90% based on the weight of slag-limestone melt. EFFECT: simplified technology of producing low-carbon ferromanganese from iron-free low-phosphorus ...

  • (PDF) Reduction and Dissolution Behaviour of Manganese ...

    Reduction and Dissolution Behaviour of Manganese Slag in the Ferromanganese Process Article (PDF Available) in Minerals 10(2):97 January 2020 with 92 Reads How we measure 'reads'

  • Slag in the Ferromanganese Process - MDPI

    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.

  • Ferromanganese - an overview ScienceDirect Topics

    The furnace charge includes high-manganese slag, siliceous manganese ore, or quartz in addition to manganese ores and fluxing agents. Because of the reduction of silica, the smelting temperature is higher than that of standard ferromanganese alloy. (c) Ferromanganese–silicon. Ferromanganese –silicon is also known as low-carbon ...

  • Parameters Affecting the Production of High Carbon ...

    Key words: Ferromanganese, closed Furnaces, carbothermic reduction, Slag basicity . 1. INTRODUCTION . At Sinai Manganese Company (SMC), Abu Zenimam, standard high-carbon ferromanganese (HCFeMn) for the domestic and exportedmarkets is smelted in 21 MVA three phase submerged electric arc furnace as closed top unit.

  • Thermochemical analysis of smelting of ferruginous ...

    Thermochemical calculations based on available thermodynamics databases were used to understand the smelting behavior of the ore mix consisting of ferruginous manganese ore and slag from high carbon ferromanganese. A basicity map was constructed in terms of input burden material basicity B (= (CaO wt%+MgO wt%)/SiO 2 wt%) and input R (= (CaO wt ...

  • Slags in ferroalloys production—review of present knowledge

    solubility of CrOx in the slag is about 60 mol%, if the slag is in equilibrium with metallic chromium. In this slag system, the slag is more acidic, the slag basicity is less than 1.0, and the effect of MgO and Al2O3 co-existence is incorporated. 3CrO Cr Cr O=+ 23 430 AUGUST 2004 The Journal of The South African Institute of Mining and Metallurgy

  • Parameters Affecting the Production of High Carbon ...

    Key words: Ferromanganese, closed Furnaces, carbothermic reduction, Slag basicity . 1. INTRODUCTION . At Sinai Manganese Company (SMC), Abu Zenimam, standard high-carbon ferromanganese (HCFeMn) for the domestic and exportedmarkets is smelted in 21 MVA three phase submerged electric arc furnace as closed top unit.

  • Effect of basicity on ferromanganese production from ...

    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

  • Thermochemical analysis of smelting of ferruginous ...

    Thermochemical calculations based on available thermodynamics databases were used to understand the smelting behavior of the ore mix consisting of ferruginous manganese ore and slag from high carbon ferromanganese. A basicity map was constructed in terms of input burden material basicity B (= (CaO wt%+MgO wt%)/SiO 2 wt%) and input R (= (CaO wt ...

  • 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 ...

  • Ferromanganese alloy Britannica

    Other articles where Ferromanganese is discussed: manganese processing: High-carbon ferromanganese: The primary product of the smelting process outlined above is a carbon-saturated ferroalloy containing 76 to 80 percent manganese, 12 to 15 percent iron, up to 7.5 percent carbon, and up to 1.2 percent silicon. It can be produced by two methods.

  • Slag in the Ferromanganese Process - MDPI

    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.

  • WO2017100808A1 - Manganese waste slag treatment - Google ...

    A method of processing a ferroalloy waste slag in a reactor which includes the steps of treating the slag with a metallic reductant and a conditioning flux to release a metal oxide and reduce it to metallic form, to use as a commercially acceptable silicon-containing alloy and to form a waste slag which is detoxified by means of granulation and separating the detoxified slag from silicon ...

  • Production of Ferro- Manganese – IspatGuru

    The typical consumption figures per ton of low C Fe-Mn ferromanganese having composition of Mn – 85 % to 92 %, C – around 0.1 %, and Si around 1 % with a manganese recovery of 75 % are calcined Mn ore – 1250 kg to 1350 kg, Si-Mn (containing 32 % to 33 % Si) – 800 kg to 850 kg, quicklime – 1000 kg to 1100 kg, electrodes – 10 kg to 12 ...

  • Thermodynamic Behavior of Manganese Oxide in Lime-based ...

    manganese loss into the slag phase is an important issue to increase the overall efficiency of the smelting process. The possibility of recovering manganese from the manganese smelting slag, of which basicity is relatively high (i.e., CaO/ SiO 2 ratio = 1.6), was confirmed by Aleksandrov et al.4) In

  • Thermodynamics and Viscosity Aspects in Manganese Nodule ...

    containing materials like high phosphorous manganese slag, high-carbon ferromanganese-byproduct metal etc[3-5]. However, use of such complicated materials require detailed ... Several studies have been done to study the effect of slag basicity on Mn and Si distribution or Distribution Ratio i.e.[ratio of Wt. % metal in slag to that in alloy].

  • The Two-stageProduction ofHigh-carbon Ferromanganesein a ...

    slag volume, and the manganese in the slag must be reduced to a greater degree to keep the recovery high. Table ill shows that the mean content of MnO in the slag is 6,28 per cent, and that the manganese recovery in the second step of the two-stepBF process is 78,2 per cent. The MnO content of the slag from all three BFs was 4,93 per cent in 1990.

  • Preparation of electronic grade manganese sulfate from ...

    Ferromanganese slag is a kind of blast furnace manganese slag from ferromanganese alloy smelting, a great amount of ferromanganese slag accounted for about 2−3 times as much as ferromanganese alloy each year [4,5]. The impurity categories included in ferro- manganese slag are the same as those of manganese ore, and the content of MnO is ...

  • Effect of Charge Basicity of Two Compositions on MnO ...

    The effect of basicity of two different basic charges for reduction of MnO by solid carbon during smelting ferromanganese is considered. The effect of different charge compositions on MnO reduction in the temperature range 1400–1500°C is considered. Experiments are performed in a thermogravimetric furnace in the presence of CO at atmospheric pressure.

  • Parameters Affecting the Production of High Carbon ...

    The recovery of Mn ranges between 70 and 80 %. Much higher basic slag has slight effect on Mn- recovery. However, as slag basicity increases, the MnO- content of slag decreases. The manganese content of produced HCFeMn depends mainly on Mn/Fe ratio of Mn-blend.

  • Effect of basicity on ferromanganese production from ...

    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

  • 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 ...

  • Parameters Affecting the Production of High Carbon ...

    The recovery of Mn ranges between 70 and 80 %. Much higher basic slag has slight effect on Mn- recovery. However, as slag basicity increases, the MnO- content of slag decreases. The manganese content of produced HCFeMn depends mainly on Mn/Fe ratio of Mn-blend.

  • effect of manganese on gold amalgamation

    As a leading global manufacturer of crushing and milling equipment.

  • Reduction and Dissolution Behaviour of Manganese Slag in ...

    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. The extent of manganese ore reduction as a function temperature ...

  • Preparation of electronic grade manganese sulfate from ...

    Ferromanganese slag is a kind of blast furnace manganese slag from ferromanganese alloy smelting, a great amount of ferromanganese slag accounted for about 2−3 times as much as ferromanganese alloy each year [4,5]. The impurity categories included in ferro- manganese slag are the same as those of manganese ore, and the content of MnO is ...

  • Selective Reduction of Phosphorus from Manganese Ore to ...

    Selective Reduction of Phosphorus from Manganese Ore to Produce Ferromanganese Alloy with Low Phosphorus Content. Authors; Authors and affiliations ... By decreasing the basicity of the slag and increasing the temperature of the reduction, Fe and P were reduced to the metal, while most of the Mn remained in the slag. ... Shulte YA (1963) Effect ...

  • The Two-stageProduction ofHigh-carbon Ferromanganesein a ...

    slag volume, and the manganese in the slag must be reduced to a greater degree to keep the recovery high. Table ill shows that the mean content of MnO in the slag is 6,28 per cent, and that the manganese recovery in the second step of the two-stepBF process is 78,2 per cent. The MnO content of the slag from all three BFs was 4,93 per cent in 1990.

  • The recovery of manganese products from ferromanganese ...

    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.

  • THERMODYNAMICS AND VISCOSITY ASPECTS IN

    out in acidic slag ie. slag basicity <1. Several studies have been done to study the effect of slag basicity on Mn and Si distribution or Distribution Ratio i.e. [ratio of Wt. % metal in slag to that in Tech — 6/2 This determines the distribution of Mn and Si between alloy and slag phase and hence the composition of alloy.

  • CiteSeerX — 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 discuss the effect of Al2O3 on melting relations, viscosity and MnO-content of final slag.

  • Production of high carbon ferromanganese from a manganese ...

    High carbon ferromanganese can be produced by 3 different processes: blast furnace, discard slag electric furnace, and high manganese slag electric furnace. During high carbon ferromanganese production, parameters such as temperature, time and, charge basicity affect the manganese recovery.

  • Factors Affecting Silicomanganese Production using ...

    Manganese‐rich slag, resulting from high carbon ferromanganese production, has the advantages of high manganese content, high Mn/Fe ratio, low excess oxygen, low phosphorus content, low fine content and low cost. Such slag seems to be very attractive to use as raw materials for the production of silicomanganese alloys.

  • Thermodynamic Behavior of Manganese Oxide in Lime-based ...

    The possibility of recovering manganese from the manganese smelting slag, of which basicity is relatively high (i.e., CaO/SiO 2 ratio = 1.6), was confirmed by Aleksandrov et al. 4) In order to achieve a higher recovery of manganese, several operating factors such as temperature, oxygen partial pressure, activity of MnO in the slag, and activity ...

  • crusher effect virtual dj mali

    effect of manganese on gold amalgamation. effect of manganese on gold amalgamation effect basicity on manganese slag of ferromanganese [Google Scholar]), while slag basicity had an effect on manganese losses in slag and off-gas during the smelting process , effect of manganese on gold amalgamation;. [Chat Online] Effects of Manganese Mining on ...

  • Production of high carbon ferromanganese from a manganese ...

    High carbon ferromanganese can be produced by 3 different processes: blast furnace, discard slag electric furnace, and high manganese slag electric furnace. During high carbon ferromanganese production, parameters such as temperature, time and, charge basicity affect the manganese recovery.

  • CiteSeerX — 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 discuss the effect of Al2O3 on melting relations, viscosity and MnO-content of final slag.

  • Parameters Affecting the Production of High Carbon ...

    The recovery of Mn ranges between 70 and 80 %. Much higher basic slag has slight effect on Mn- recovery. However, as slag basicity increases, the MnO- content of slag decreases. The manganese content of produced HCFeMn depends mainly on Mn/Fe ratio of Mn-blend.

  • 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 ...

  • Technical Note on Recovery of Manganese from Low Manganese ...

    The main constituents of ferromanganese slags are silicates of Mn, Ca and AI. Factors affecting the recovery of manganese from a low manganese content ferromanganese slag (about 16 per cent MnO) during acid leaching were studied. These included time, temperature, agitation, sulphuric acid addition, solid:liquid ratio and particle size.

  • high carbon ferro manganese py series cone crusher ...

    high carbon ferro manganese py series cone crusher Oct 09, 2019 High manganese steel HP series cone crusher parts mantle and concave US $2000 - $2000 / Ton Whatever your requirements, you 'll find the perfect service-oriented solution to match your specific needs with our help.We are here for your questions anytime 24/7, welcome your ...

  • CN105907969A - Process for producing metal manganese by ...

    The invention discloses a process for producing metal manganese by using a submerged arc furnace and a rocking furnace. In the submerged arc furnace, ferromanganese ores are reduced by cokes; the reducing temperature is controlled below 1500 DEG C; the slag alkalinity omega (CaO)/omega (SiO2) is 0.16; the mass fraction of SiO2 is 18%; the mass fraction of MnO in produced manganese enriched ...

  • Thermodynamic Behavior of Manganese Oxide in Lime-based ...

    The possibility of recovering manganese from the manganese smelting slag, of which basicity is relatively high (i.e., CaO/SiO 2 ratio = 1.6), was confirmed by Aleksandrov et al. 4) In order to achieve a higher recovery of manganese, several operating factors such as temperature, oxygen partial pressure, activity of MnO in the slag, and activity ...

  • Factors Affecting Silicomanganese Production using ...

    Manganese‐rich slag, resulting from high carbon ferromanganese production, has the advantages of high manganese content, high Mn/Fe ratio, low excess oxygen, low phosphorus content, low fine content and low cost. Such slag seems to be very attractive to use as raw materials for the production of silicomanganese alloys.

  • Minerals Engineering International Online - Commodities ...

    Simultaneous extraction of manganese from low grade manganese dioxide ore and beneficiation of sulphur slag. Separation and Purification Technology, Vol.27 No.1, 2002. Duta, E.P., Franca, F.P., and Costa, A.C.A., The performance of a continuous system for biosorption and desorption of zinc, cadmium, manganese and copper by the seaweed sargassum sp.

  • Manganese REACH Administration

    The No Observed Effect Concentration (NOEC) after 3 hours exposure was 1000 mg/l. It was considered unnecessary and unrealistic to test at concentrations in excess of 1000 mg/l. The reference item gave a 3-Hour EC50 value of 8.4 mg/l, 95% confidence limits 6.6 - 11 mg/l. To obtain the full study, please contact: [email protected] « Back to ...

  • A review of the production of ferromanganese in blast furnace

    Nov 10, 2014  Raw materials Fluxes Slag chemistry control is required for the slag to flow through tap hole and runners for not having high MnO for desulphurization for Na2O / K2O absorption Limestone and dolomite for basicity control When possible, part of the fluxes are introduced through sinter or

  • Silicon and Manganese Partition Between Slag and Metal ...

    Equilibrium between MnO-CaO-MgO-SiO2-Al2O3 slags and carbon saturated Mn-Si-Fe-C alloys was investigated under CO at 1500 o C. Manganese and silicon activities were obtained by using the present data and the previously determined MnO and SiO 2 activities of the slag. Quadratic multi-coefficient regression equations were developed for activity coefficients of manganese and silicon.