Production of Si-Al-Fe Alloy with Carbothermal Reduction of Coal Fly Ash

Abstract:

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In this study, production of Si-Al-Fe alloy with coal fly ash and bauxite as the major raw materials in the induction furnace at high temperatures were studied. The results show that carbothermal reduction of mixture of coal fly ash, bauxite, hematite, silica and CaF2 in the induction furnace can produce Si-Al-Fe alloy, and it can therefore improve the utilization value of fly ash and reduce its pollution to the environment. The reduced alloy phase mainly contains ~23% Si, ~19% Al and ~52% Fe, and small amounts of P and S. The main phases of alloy are Al0.5Fe3Si0.5, FeSi, SiC, Si5C3, FeC, and TiC.

Info:

Periodical:

Advanced Materials Research (Volumes 291-294)

Edited by:

Yungang Li, Pengcheng Wang, Liqun Ai, Xiaoming Sang and Jinglong Bu

Pages:

1808-1811

DOI:

10.4028/www.scientific.net/AMR.291-294.1808

Citation:

G. J. Ma et al., "Production of Si-Al-Fe Alloy with Carbothermal Reduction of Coal Fly Ash", Advanced Materials Research, Vols. 291-294, pp. 1808-1811, 2011

Online since:

July 2011

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Price:

$35.00

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