Journal Article10.3390/magnetochemistry9100212
A Study of the Structure and Physicochemical Properties of the Mixed Basicity Iron Ore Sinter
А. Н. Дмитриев,E. A. Vyaznikova,Galina Yu. Vitkina,А И Карлина +3 more
3
TL;DR: Sinter basicity influences the microstructure, phase composition, and physicochemical properties of the mixed basicity iron ore sinter. 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.
read more
Abstract: 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.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
Technogenic Reservoirs Resources of Mine Methane When Implementing the Circular Waste Management Concept
V. S. Brigida,V. I. Golik,Elena V. Voitovich,Vladislav V. Kukartsev,Valeriy E. Gozbenko,V. Yu. Konyukhov,Tatiana A. Oparina +6 more
TL;DR: This study estimates technogenic reservoirs resources of mine methane under circular waste management, revealing a polynomial dependence of methane concentrations on mining dynamics and distance from the face, with potential emissions exceeding 660,000 m3 in case of network disruption.
45
A Study of the Possibility of Producing Annealed and Metallized Pellets from Titanomagnetite Concentrate
А. Н. Дмитриев,Galina Yu. Vitkina,Vladimir G. Zlobin,Elena A. Vyaznikova,Larisa A. Marshuk,Yulia E. Burova,Roman V. Alektorov,V. V. Kataev +7 more
TL;DR: Researchers produced annealed and metallized pellets from titanomagnetite concentrate, achieving sufficient compressive strength (up to 300 kg/pellet) and metallization (exceeding 90%), making them suitable for electric steelmaking and blast furnace applications.
Characterisation of iron ore sinter products with varying binary basicity (CaO/SiO<sub>2</sub>) from 1.5 to 2.7
Liu Wei,Congcong Yang,Deqing Zhu,Jian Pan,Zhengqi Guo,Guanghui Xia,Shi-juan Qu +6 more
TL;DR: This study characterises iron ore sinter products with varying binary basicity (CaO/SiO2) from 1.5 to 2.7, revealing changes in microstructure, composition, and mechanical properties, with increased basicity refining crystals, enhancing reducibility, and altering element distributions.
References
•Book
Mineral Resources, Economics, and the Environment
Stephen E. Kesler,Adam C. Simon +1 more
- 01 Feb 1994
TL;DR: In this article, the authors present a survey of the mineral industry from geological, environmental and economic perspectives, including a new chapter on technology industry metals as well as separate chapters on mineral economics and environmental geochemistry.
Silico-ferrite of Calcium and Aluminum (SFCA) Iron Ore Sinter Bonding Phases: New Insights into Their Formation During Heating and Cooling
TL;DR: In this paper, the formation of silico-ferrite of calcium and aluminum (SFCA) and SFCA-I iron ore sinter phases during heating and cooling of synthetic IR 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.
174
A Review of the Chemistry, Structure and Formation Conditions of Silico-Ferrite of Calcium and Aluminum (‘SFCA’) Phases
TL;DR: In this article, the major bonding phases found in modern iron ore sinters are reviewed and a critical analysis of the data is proposed to generate the information necessary to fully describe the properties of both phases.
83
Thermodynamic Modelling of Iron Ore Sintering Reactions
TL;DR: In this article, a solid solution model and database has been developed for the SFCA phase, and has been incorporated into the thermodynamic software, Multi-Phase Equilibrium (MPE).