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Carbothermic Reduction and Chlorination of Alumina with Coal in Vacuum

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Abstract:

Metal aluminum was produced in a vacuum furnace using coal as reductant and aluminum chloride as chlorination agent and examined by means of XRD and SEM. The produced metal aluminum was impure. Reaction mechanism analysis showed that the carbothermic reduction of alumina with coal occurred following the chlorination, then metal aluminum was accquired and condensed on the collecting plate. A probable mechanism concerning carbothermic reduction and chlorination was discussed.

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Periodical:

Advanced Materials Research (Volumes 443-444)

Pages:

862-865

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.443-444.862

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Online since:

January 2012

Authors:

Qing Chun Yu, Ping Yan Wang, Bin Yang, Chong Long Cui, Han Zhang, Chen Wang

Keywords:

Alumina, Carbothermic, Chlorination

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] Kai Grjotheim, Halvor Kvande, Li Qingfeng, Qiu Zhuxian. Metal production by molten salt electrolysis especially aluminum and magnesium. China university of mining and technology press. 1998, pp,. 73-75.

Google Scholar

[2] A. Steinfeld, G. Thompson. Solar combined thermochemical processes for CO2 mitigation in the iron, cement, and syngas industries,. Energy, Vol 19, 1994, p.1077–1081.

DOI: 10.1016/0360-5442(94)90096-5

Google Scholar

[3] H. Myklebust, P. Runde. Greenhouse gas emission from aluminum carbothermic technology compared to Hall-Héroult technology,. Light Met, 2005, pp.519-522.

Google Scholar

[4] W. Choate, J. Green. Technoeconomic assessment of the carbothermic reduction process for aluminum production,. Light Met, 2006, pp.445-450.

DOI: 10.1002/9781118647851.ch156

Google Scholar

[5] M. Halmann, A. Frei, A. Steinfeld. Carbothermal reduction of alumina: Thermochemical equilibrium calculations and experimental investigation,. Energy, Vol 32, 2007, p.2420–2427.

DOI: 10.1016/j.energy.2007.06.002

Google Scholar

[6] F. Yang, V. Hlavacek, Carbochlorination of tantalum and niobium oxides, Thermodynamic simulation and kinetic modeling,. AIChE J. Vol 45, 1999, p.581–589.

DOI: 10.1002/aic.690450315

Google Scholar

[7] P. Y. Wang, M. S. Liu, Y. N. Dai. Vacuum metallurgy of Al from bauxite by carbothermic reduction-chlorination,. Chinese Journal of Vacuum Science and Technology, Vol 26, 2006, pp.377-380.

Google Scholar

[8] Fenglin Yang, Vladimir Hlavacek Recycling of carbon-enriched coal fly ash,. Powder Technology Vol 104, 1999, p.190–195.

DOI: 10.1016/s0032-5910(99)00040-6

Google Scholar