XRD analysis and evaluation of iron ores and sinters

Villiers, J. P. R. de; Lü, Liming

doi:10.1016/b978-1-78242-156-6.00003-4

Cited by 6 publications

(5 citation statements)

References 16 publications

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“…Modern methods of analysis and interpretation of information are widely used in processing the results of ultrasonic measurements [24][25][26]. In paper [27], it was suggested to use cluster and quantitative analysis of various characteristic features of oreforming minerals for the classification of processed iron ore into blocks. As a result, ore material that requires higher degrees of enrichment was identified.…”

Section: Literature Analysismentioning

confidence: 99%

Mineralogical Analysis of Iron Ore Using Ultrasonic Wave Propagation Parameters

Morkun

Fischerauer

Tron

et al. 2023

Acta Mechanica Et Automatica

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Availability, relative simplicity and low cost, combined with ever-increasing capabilities, have led to a significant increase in the use of ultrasonic measurements of mining process variables in recent times. The scope of application varies from the study of the characteristics of raw materials and products of its processing to the operational assessment of the current parameters characterising the state of the process equipment. The purpose of this study is to develop methods for obtaining information about the characteristics of mineral raw materials as a result of ultrasonic logging of wells in a rock mass. The proposed approach makes it possible to improve the quality of information support for the management of technological processes of mining and processing of ore and thereby improve the quality of products supplied to the metallurgical stage and reduce overall production costs.

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Section: Literature Analysismentioning

confidence: 99%

Mineralogical Analysis of Iron Ore Using Ultrasonic Wave Propagation Parameters

Morkun

Fischerauer

Tron

et al. 2023

Acta Mechanica Et Automatica

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“…Each sample was analysed (for potential diffraction paths of the lattice) over a 2θ range of 3 °-60 °at a scan rate of 1 °per minute with an increment of 0.1 °. More details can be read from Meier et al [45] and De Villiers and Lu [46]. Figure 4 illustrates XRD method (adapted from [46]).…”

Section: Experimental Programmentioning

confidence: 99%

“…More details can be read from Meier et al [45] and De Villiers and Lu [46]. Figure 4 illustrates XRD method (adapted from [46]).…”

Section: Experimental Programmentioning

confidence: 99%

Performance of Ladle Furnace Slag in Mortar under Standard and Accelerated Curing

Sultana

Islam

2022

Advances in Civil Engineering

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This research preliminarily investigated the suitability of a locally available ladle furnace slag (LFS) as a partial replacement of cement in mortar. The raw material was first characterized to obtain its chemical and physical properties through particle size distribution, X-ray fluorescence (XRF), X-ray diffraction (XRD), and scanning electron microscopy (SEM). Later, the raw LFS was classified into two categories: (i) raw LFS and (ii) sieved (passing through #200 sieve) LFS and incorporated in mortars as a partial replacement of cement. Mortar prisms with 5, 10, 15, 20, 25, and 50% LFS (raw and sieved) were prepared and cured under normal temperature (NTC) for 7, 28, and 56 days. Additional mortar prisms (with raw and sieved LFS) were prepared by curing them under high-temperature accelerated curing (HTAC) for 7 days. The characterization tests suggest that CaO, SiO2, MgO, and Al2O3 are the main compounds of raw LFS used in this study. The mineralogical phases present in the raw slag are calcio-olivine, akermanite, α -quartz, merwinite, magnetite (Fe3O4), and calcium-aluminium oxide. Both raw and sieved LFS-blended mortars yield good consistency up to 25% cement replacement in mortars. The compressive strength of NTC mortar suggests that 5% and 10% replacement of cement with raw and sieved LFS yields higher strength than the control mortar. Seven days strengths of raw and sieved LFS blended mortars obtained for HTAC are closely comparable to that of 28 days under NTC. This study recommends that LFS could be a sustainable supplementary material to use as a partial replacement of cement in mortar, preferably up to a level of 15% for standard works.

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“…Despite numerous studies dedicated to the investigation of iron ore sinter, there is a need for further research on its structure and physicochemical properties, taking into account the characteristics of mixed basicity compositions [2][3][4][5][6][7][8][9]. Analyzing the data obtained from studying the structure of mixed iron ore sinter will provide a better understanding of the mechanisms involved in its formation and optimize the sintering process.…”

Section: Introductionmentioning

confidence: 99%

A Study of the Structure and Physicochemical Properties of the Mixed Basicity Iron Ore Sinter

Dmitriev,

Vyaznikova,

Vitkina

et al. 2023

Magnetochemistry

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To study the influence of sinter basicity on the microstructure, phase composition, and physicochemical and metallurgical properties, samples of agglomerates with different basicities were sintered and investigated. A comprehensive study of the structure, composition, chemical, and metallurgical properties of the sinter was conducted, and the optimum values for these properties were determined. The results of the mineralogical transformations that occurred during the sintering process are also presented. The magnetite contained in the concentrate partially dissolves in the silicate component and flux during agglomeration, forming a complex silicate SFCA with the general formula M14O20 (M–Ca, Si, Al, and Mg), which is the binder of the ore phases of the agglomerate. The proportion of ferrosilicates of calcium and aluminum in the sinter depends on the basicity of the sinter charge, and the morphology of the SFCA phase depends on the cooling rate of the sinter. The more CaO in the sinter charge, the more SFCA phase is formed in the sinter, and slow cooling results in the growth of large lamellar and dendritic SFCA phases.

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XRD analysis and evaluation of iron ores and sinters

Cited by 6 publications

References 16 publications

Mineralogical Analysis of Iron Ore Using Ultrasonic Wave Propagation Parameters

Mineralogical Analysis of Iron Ore Using Ultrasonic Wave Propagation Parameters

Performance of Ladle Furnace Slag in Mortar under Standard and Accelerated Curing

A Study of the Structure and Physicochemical Properties of the Mixed Basicity Iron Ore Sinter

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