Study on the Preparation of Si-Al Alloy by Carbon Reduction Coal Fly Ash

DOI

10.2991/iceep-18.2018.200How to use a DOI?

Keywords

coal fly ash; carbon thermal reduction; carbon content; reduction temperature; Si-Al alloy

Abstract

In this paper, the effects of reduction temperature and carbon content on the preparation of silicon-aluminum alloy by carbothermal reduction coal fly ash were studied. The reduction products were characterized by XRD. The results showed that when carbon content was 1.15 or 1.3 times and reduction temperature was 1900℃, Al4C3 was formed in the reduction products and Al2O3 was not completely reacted; when carbon content was 1.15 times and reduction temperature was 2000℃, Al6Fe, SiC, Al8Fe2Si, Si and Al were produced by carbon reduction coal fly ash. When carbon content was 1.3 times and reduction temperature was 2000℃, reduction product had many impurities. When carbon content was 1.15 times and reduction temperature was 2000℃, silicon- aluminum alloy was obtained, impurities of the reduction products were less, the effect of carbon reduction coal fly ash on the preparation of silicon-aluminum alloy was the best.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Zhiling Bai
AU  - Bingke Qin
AU  - Minglei Lian
PY  - 2018/09
DA  - 2018/09
TI  - Study on the Preparation of Si-Al Alloy by Carbon Reduction Coal Fly Ash
BT  - Proceedings of the 2018 7th International Conference on Energy and Environmental Protection (ICEEP 2018)
PB  - Atlantis Press
SP  - 1139
EP  - 1142
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceep-18.2018.200
DO  - 10.2991/iceep-18.2018.200
ID  - Bai2018/09
ER  -