The effect of gangue composition on the behavior of the Fe3C synthesis

M. Egashira; T. Maeda; H. Nakagawa; M. Shimizu

doi:10.2355/tetsutohagane1955.87.6_427

The effect of gangue composition on the behavior of the Fe₃C synthesis

M. Egashira, T. Maeda, H. Nakagawa, M. Shimizu

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The purpose of this investigation is to clarify the effect of gangue composition (Al₂O₃, CaO, SiO₂ and MgO) in the hematite pellets on the synthesis of Fe₃C pellets. Pure hematite pellets and those contained one, two or three kinds of the gangue compositions were reacted in the atmosphere with H₂-30vol%CH₄ gas mixture at 750°C. It was confirmed that the Fe₃C were produced when the pellets containing Al₂O₃ (1, 3, 5 mass%), MgO (1, 3, 5 mass%) and SiO₂ (5 mass%) were reduced. All of the reduced pellets had the similar specific surface area. However, the structure of reduced iron phase were different form each other. The reduced pellets containing Fe₃C had the iron phase with many micro pores, and the reduced pellets containing no Fe₃C had that with no micro pores. For the pellets contained two or three kinds of the gangue compositions, it was recognized that the formation of Fe₃C is suppressed by CaO and promoted by Al₂O₃.

Original language	English
Pages (from-to)	427-432
Number of pages	6
Journal	Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
Volume	87
Issue number	6
DOIs	https://doi.org/10.2355/tetsutohagane1955.87.6_427
Publication status	Published - Jun 2001

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Physical and Theoretical Chemistry
Metals and Alloys
Materials Chemistry

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10.2355/tetsutohagane1955.87.6_427

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title = "The effect of gangue composition on the behavior of the Fe3C synthesis",

abstract = "The purpose of this investigation is to clarify the effect of gangue composition (Al2O3, CaO, SiO2 and MgO) in the hematite pellets on the synthesis of Fe3C pellets. Pure hematite pellets and those contained one, two or three kinds of the gangue compositions were reacted in the atmosphere with H2-30vol%CH4 gas mixture at 750°C. It was confirmed that the Fe3C were produced when the pellets containing Al2O3 (1, 3, 5 mass%), MgO (1, 3, 5 mass%) and SiO2 (5 mass%) were reduced. All of the reduced pellets had the similar specific surface area. However, the structure of reduced iron phase were different form each other. The reduced pellets containing Fe3C had the iron phase with many micro pores, and the reduced pellets containing no Fe3C had that with no micro pores. For the pellets contained two or three kinds of the gangue compositions, it was recognized that the formation of Fe3C is suppressed by CaO and promoted by Al2O3.",

author = "M. Egashira and T. Maeda and H. Nakagawa and M. Shimizu",

year = "2001",

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doi = "10.2355/tetsutohagane1955.87.6_427",

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T1 - The effect of gangue composition on the behavior of the Fe3C synthesis

AU - Egashira, M.

AU - Maeda, T.

AU - Nakagawa, H.

AU - Shimizu, M.

PY - 2001/6

Y1 - 2001/6

N2 - The purpose of this investigation is to clarify the effect of gangue composition (Al2O3, CaO, SiO2 and MgO) in the hematite pellets on the synthesis of Fe3C pellets. Pure hematite pellets and those contained one, two or three kinds of the gangue compositions were reacted in the atmosphere with H2-30vol%CH4 gas mixture at 750°C. It was confirmed that the Fe3C were produced when the pellets containing Al2O3 (1, 3, 5 mass%), MgO (1, 3, 5 mass%) and SiO2 (5 mass%) were reduced. All of the reduced pellets had the similar specific surface area. However, the structure of reduced iron phase were different form each other. The reduced pellets containing Fe3C had the iron phase with many micro pores, and the reduced pellets containing no Fe3C had that with no micro pores. For the pellets contained two or three kinds of the gangue compositions, it was recognized that the formation of Fe3C is suppressed by CaO and promoted by Al2O3.

AB - The purpose of this investigation is to clarify the effect of gangue composition (Al2O3, CaO, SiO2 and MgO) in the hematite pellets on the synthesis of Fe3C pellets. Pure hematite pellets and those contained one, two or three kinds of the gangue compositions were reacted in the atmosphere with H2-30vol%CH4 gas mixture at 750°C. It was confirmed that the Fe3C were produced when the pellets containing Al2O3 (1, 3, 5 mass%), MgO (1, 3, 5 mass%) and SiO2 (5 mass%) were reduced. All of the reduced pellets had the similar specific surface area. However, the structure of reduced iron phase were different form each other. The reduced pellets containing Fe3C had the iron phase with many micro pores, and the reduced pellets containing no Fe3C had that with no micro pores. For the pellets contained two or three kinds of the gangue compositions, it was recognized that the formation of Fe3C is suppressed by CaO and promoted by Al2O3.

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The effect of gangue composition on the behavior of the Fe₃C synthesis

Abstract

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