Influence of Mineralogy and Pore Structure on the Reducibility and

The effects of basicity and Mg addition on the crystallisation during cooling of complex Ca-rich ferrite iron ore sinter bonding phases SFCA and Fe-rich SFCA was investigated using in situ ...

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Thermodynamic Modelling of Iron Ore …

Silico-ferrite of calcium and aluminum (SFCA) is one of the most commonly-produced phases in fluxed iron-ore sintering, and has long been regarded as an important bonding phase in industrial sinters. It is …

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An investigation into aluminum occurrence impact on SFCA …

In contrast, iron ore 2# contains low iron grade of 58.09%, Al 2 O 3 content of 1.59% and high LOI content of 9.76%, resulting in the formation of larger pores and degradation of its sinter matrix strength. As with iron ore 6#, it is also a hematite ore with relatively high iron grade and low LOI content, which may present some positive effects ...

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Comparison of iron ore sinter mineralogy quantification

At present, the powder XRD is widely used analytical method for iron ore sinter mineralogy determination. In many researches, diffraction data for SFCA and SFCA-I phases were not available and ...

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Fundamentals of Silico-Ferrite of Calcium and Aluminum …

Effects of basicity, B (CaO:SiO2 ratio) on the thermal range, concentration, and formation mechanisms of silico-ferrite of calcium and aluminum (SFCA) and SFCA-I iron ore sinter bonding phases have been investigated using an in situ synchrotron X-ray diffraction-based methodology with subsequent Rietveld refinement-based quantitative …

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Predicting Iron Ore Sinter Strength Using X-ray …

Powder X-ray diffraction (XRD) is widely used for quantitative phase analysis (QPA) of ores and processed material in the iron ore industry. Iron ore sinter is a complex composite material of ~40 ...

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FROM IRON ORE TO IRON SINTER – PROCESS …

Keywords: Iron sinter; X-ray diffraction; Ironmaking agglomeration. 1 PhD, ... Iron ore sinter materials are an important feedstock material for the steel industry.

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In situ X-ray diffraction analysis of iron ore sinter phases

In situ X-ray diffraction analysis of iron ore sinter phases. Nicola V. Y. Scarlett, a * Ian C. Madsen, a Mark I. Pownceby a and Axel N. Christensen b. a CSIRO Minerals, Bayview Ave, Clayton, Victoria 3168, Australia, and b Højkolvej 7, DK-8210 Aarhus V, Denmark * Correspondence e-mail: [email protected]

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Comparison of the Mineralogy of Iron Ore Sinters Using a …

Many different approaches have been used in the past to characterise iron ore sinter mineralogy to predict sinter quality and elucidate the impacts of iron ore characteristics and process variables on the mechanisms of sintering. This paper compares the mineralogy of three sinter samples with binary basicities (mass ratio of CaO/SiO2) …

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Quantitative XRD analysis and evaluation of iron ore, sinter, …

Powder X-ray diffraction (XRD) is increasingly being used for the characterization of iron ore, sinter, and pellets thanks to the continuing developments in its instrumentation and software that ...

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XRD analysis and evaluation of iron ores and sinters

Abstract. Powder X-ray diffraction is increasingly being used for the characterization of iron ores, sinters, and pellets. This is the result of continuing …

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Quantitative XRD for Ore, Sinter, and Slag Characterization in …

Several case studies demonstrate how XRD and data clustering can be used for grade control, process optimization and quality control of iron ores, iron ore sinters, …

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FROM IRON ORE TO IRON SINTER – PROCESS CONTROL USING X-RAY DIFFRACTION

PDF | On Sep 1, 2017, Uwe König and others published FROM IRON ORE TO IRON SINTER – PROCESS CONTROL USING X-RAY DIFFRACTION (XRD) | Find, read and cite all the research you need on ResearchGate

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Predicting Iron Ore Sinter Strength through X-ray Diffraction …

Powder X-ray diffraction (XRD) is widely used for quantitative phase analysis (QPA) of ores and processed material in the iron ore industry. Iron ore sinter is a complex composite material of ~40 ...

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XRD, internal field-NMR and Möss spectroscopy

1. Introduction. Hematite and magnetite are the primary iron ores used for the extraction of metallic iron by the steel industries. Iron ores that are used by the steel industry requires to contain ≥58 wt% iron compounds, such as iron oxides before being considered as commercially usable [1].Apart from extraction of metallic iron, the iron …

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Quantitative Analysis of Mineral Phases in Iron …

Analysis techniques for quantifying crystal structures of mineral phases and their fractions in iron ore sinters have been developed using the Rietveld analysis of X-ray diffraction patterns and ...

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Study of Mineralogy and Metallurgical Properties of Lump …

With the rapid development and innovation of the Chinese steel industry over the past decades, the mixed burden structure of the domestic blast furnace ironmaking process primarily utilizes the dosage mode of "high basicity sinter + acid pellet + iron lump ore", with sinter and pellet accounting for more than 80% of the BF [1,2,3,4,5].However, …

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Mechanical properties of sintered ceramsite from iron ore tailings

The consumption of ore has been significant, and the corresponding solid waste produced has become a bottleneck for the development of China's mining industry [1].Approximately 19.9 billion tonnes of iron ore tailings (IOTs) are produced each year [2] and this number is expected to increase by more than 300 million tonnes in the coming …

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PLSR as a new XRD method for downstream processing of …

XRD analysis in combination with Rietveld quantification and statistical data evaluation using partial least-squares regression (PLSR) has been successfully established to determine the mineralogical composition and the Fe 2+ content of iron ore sinter within an analysis time of less than 10 min per sample. A total of 35 iron ore sinter samples ...

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Influence of iron ore properties on dioxin emissions during iron ore …

Umadevi, T. et al. Influence of iron ore fines feed size on microstructure, productivity and quality of iron ore sinter. ISIJ Int. 51 (6), 922–929 (2011). Article CAS Google Scholar

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Characterization and differentiation of iron ores using X-ray

This study was aimed at developing methodology for the characterization and differentiation of iron ores from different ore deposits. X-ray diffractometry (XRD) …

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Fundamentals of Silico-Ferrite of Calcium and Aluminum …

The effect of MgO on the stability, concentrations and formation mechanisms of silico-ferrite of calcium and aluminum (SFCA and SFCA-I) iron ore sinter bonding phases during heating in synthetic mixtures was investigated using in situ x-ray diffraction. The novelty of this study is in the intricate detail in which the formation mechanisms of …

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In Situ X-ray Diffraction Analysis of Iron Ore Sinter Phases

The effects of basicity and Mg addition on the crystallisation during cooling of complex Ca-rich ferrite iron ore sinter bonding phases SFCA and Fe-rich SFCA was investigated using in situ ...

WhatsApp: +86 18221755073

Predicting Iron Ore Sinter Strength Using X-ray …

Powder X-ray diffraction (XRD) is widely used for quantitative phase analysis (QPA) of ores and processed material in the iron ore industry. Iron ore sinter is a complex composite material of …

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In Situ Diffraction Studies of Phase Formation during Iron Ore

The reaction sequences involved in the formation of iron ore sinter phases were determined using in situ synchrotron-based X-ray diffraction. Experiments were carried out using a synthetic sinter ...

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Silico-ferrite of Calcium and Aluminum (SFCA) Iron Ore Sinter …

The formation of silico-ferrite of calcium and aluminum (SFCA) and SFCA-I iron ore sinter phases during heating and cooling of synthetic iron ore sinter mixtures in the range 298 K to 1623 K (25 °C to 1350 °C) and at oxygen partial pressure of 5 × 10 −3 atm has been characterized using in situ synchrotron X-ray diffraction. SFCA and …

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FROM IRON ORE TO IRON SINTER – PROCESS …

Main sources of FeO in iron ore sinter is magnetite. Minor amounts are also present within the SFCA phases. According to Kwang-Su et al. [4] two different methods are used to determine the amount of FeO in iron ore sinter: a wet-chemical method based on the redox reaction between Fe2+ and standard potassium dichromate and an instrumental …

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Quantitative XRD analysis and evaluation of iron ore, sinter, …

Powder X-ray diffraction (XRD) is increasingly being used for the characterization of iron ore, sinter, and pellets thanks to the continuing developments in …

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Understanding iron ore analytical tools. – Process …

XRD: Sinter characterisation – effects of alumina source on sinter quality. In situ X-ray diffraction may be used to examine the relative effects of alumina sources gibbsite, kaolinite, and aluminous goethite on the formation and stability of key iron ore sinter phases, SFCA and SFCA-I. Iron ores containing aluminous goethite and kaolinite ...

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