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High-temperature behavior of magnetite—coke composite pellet fluxed with dolomite was investigated by customized thermogravimetric analyzer (TGA) at 1573 K (1300 …
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As the proportion of fluxed pellets increases from 35% to 45%, T d decreases from 1455 °C to 1427 °C, ... [23,24], with less research related to high percentage pellet smelting …
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In this experiment, high-silica acid pellets and high-silica fluxed pellets, and three types of sinters with different basicity were used. The chemical composition of raw materials …
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Gas-solid reduction kinetic model of MgO-fluxed pellets Qiang-jian Gao, Feng-man Shen, Xin Jiang, Guo Wei, and Hai-yan Zheng School of Materials and Metallurgy, Northeastern …
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The U.S. Bureau of Mines, in cooperation with Cleveland-Cliffs, Inc. (Hibbing, MN), investigated ways of enhancing the quality (compressive strength, after-tumble and …
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The iron and steel manufacturing sector directly accounts for 7–9% of global CO2 emissions. Raw material preparation, such as iron ore sintering, pelletizing, and cock making, …
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preparation process of magnesium fluxed pellets. In this study, the metallurgical properties of fluxed pellets (compressive strength, reduction disintegration, reduction swelling index) are …
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Two of the most important are magnetite oxidation and calcination of carbonate fluxes. The first reaction consumes oxygen diffusing into the pellet, while the second reaction …
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The CaO/MgO flux combined with magnetite (Fe) x [Fe] 2 O 4 and maghemite γ-Fe 2 O 3 to form stable MgFe 2 O 4, CaFe 2 O 4 and CaFe 3 O 5, thereby inhibiting …
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In this study we prepared dolomite-fluxed pellets from three different concentrates; Hibbing, a magnetic taconite, Knob Lake, an earthy hematite; and Carol Lake, a mixture of specular …
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Experiments were then conducted with pellet sized magnetite compacts, held at a temperature between 1075 and 1225°C for 20 min in a nitrogen atmosphere containing 0.5% …
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An iron-ore pellet made by mixing minor amounts of a ground flux (forsterite, calcite, dolomite, or lime) with the magnetite or hematite concentrate to decrease smelting times and coke …
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Hardening behaviour of highly fluxed iron ore pellets was studied and explained in detail by the authors in their earlier report [4]. Table 1. Chemical Analysis of Raw Materials. ...
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To investigate the feasibility of co-sintering of fluxed iron ore with magnetite concentrates, the mineralogical properties of a novel fluxed iron ore were studied using …
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Magnesium fluxed pellets are the focus of blast furnace burden research for reducing environmental load. The pelletizing, roasting and metallurgical properties of a …
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With rapid development of the pellet production under the background of green development, high-quality iron concentrates were gradually exhausted; thus, using high-silica …
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In this paper, the effect of basicity on the metallurgical properties of high MgO fluxed pellets (compressive strength, reduction swelling index, reduction disintegration and softening-melting …
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The results obtained can be used in the development of technologies that ensure the production of pellets from fluxed magnetite pellets with the required properties and which …
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In fluxed pellets with a high amount of MgO, the formation of magnesio-ferrite and magnesio-silico ferrite takes place when MgO enters the magnetite lattice, while CaO reacts …
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As a main charging burden of blast furnace (BF) ironmaking process, pellets play an important role in ironmaking process. However, compared with sinters, there are some …
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Oxidation is a vital phenomenon for magnetite pellets in their excursion through the furnace during induration. One of the pre-requisites for magnetite pellets to achieve …
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A novel composite binder (humic acid modified bentonite, HAMB) and two other binders (bentonite and Modified humic acid, MHA) were used to explore the effects of binders on the …
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Fluxed pellets have long been a research hotspot in the fields of ironmaking, which is attributed to their better reducibility, swelling behavior, softening–melting performance than …
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