Effects of Slag Content and Composition on the Reducibility of Iron Oxide Including CaO-SiO2-FetO Slag

Ono-Nakazato, Hideki; Okada, Kouji; Usui, Tateo

doi:10.2355/isijinternational.45.569

Cited by 3 publications

(1 citation statement)

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“…After reaching 1 173 K, the N 2 gas was switched to the H 2 gas at a flow rate of 1.7ϫ10 Ϫ5 m 3 /s (s.t.p. ), and the reduction experiments was started at the constant temperature of 1 173 K. 4) The mass change of the sample by the reduction was measured by using a strain gauge type load converter, and was recorded continuously by using pen-recorder. The experiments were finished when the mass change of the sample became under 0.05 g during 3 min.…”

Section: Methodsmentioning

confidence: 99%

Effect of Mineral Composition and Pore Structure on Reducibility of Composite Iron Ore Sinter

et al. 2009

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Section: Methodsmentioning

confidence: 99%

Effect of Mineral Composition and Pore Structure on Reducibility of Composite Iron Ore Sinter

et al. 2009

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An innovative magnetic oxide dispersion-strengthened iron compound obtained from an industrial byproduct, with a view to circular economy

González

Segura

Esguerra-Arce

et al. 2020

Journal of Cleaner Production

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Summarized Achievements of the Porous Meso-mosaic Texture Sinter Research Project

Kawaguchi¹,

Usui

2005

ISIJ Int.

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Research Group on Porous Meso-mosaic Texture Sinter in ISIJ was established from 2001 to 2004 fiscal years to overcome difficulties to use the great amount of goethite in sintering and at the same time to improve the sinter quality. Especially, since the beginning of the present research project the ratio of Marra Mamba goethitic ore was considered to increase rapidly, and the amount of sinter necessary for the Japanese integrated steel industries was thought hard to be produced satisfactorily, because Marra Mamba ore having high combined water content and high porosity was expected unsuitable for sintering. Therefore, the method of using goethite had been studied and the combination with low slag ratio important for melting behavior of goethite was investigated.Each university had been engaged in basic research such as granulation, agglomeration, evaluation of reaction in a blast furnace to propose a new process for "porous meso-mosaic texture sinter" which was anticipated simultaneously to realize high strength and high reducibility under the conditions of low slag and high goethite ratio in sintering.By combining these basic researches, the theory of agglomeration and the engineering foundation for raw material/sintering/blast furnace process were discussed and a new process for "porous meso-mosaic texture sinter" based on improving granulation process of raw material was searched. As a result, proposed was the MEBIOS (Mosaic Embedding Iron Ore Sintering) method which involved arranging dense pre-granulated pellets (firing cured bed) in a sinter induction bed with a raw material composition capable of forming a suitable void network under normal sintering conditions.

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Effects of Slag Content and Composition on the Reducibility of Iron Oxide Including CaO-SiO2-FetO Slag

Cited by 3 publications

References 6 publications

Effect of Mineral Composition and Pore Structure on Reducibility of Composite Iron Ore Sinter

Effect of Mineral Composition and Pore Structure on Reducibility of Composite Iron Ore Sinter

An innovative magnetic oxide dispersion-strengthened iron compound obtained from an industrial byproduct, with a view to circular economy

Summarized Achievements of the Porous Meso-mosaic Texture Sinter Research Project

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