Abstract
To increase both the recovery rate and purity of magnesium in carbothermic reduction process, magnesium vapor was condensed in a certain concentration of argon to avoid the occurrence of reverse reaction of CO and magnesium vapor. A cylinder by pressing a mixture of graphite and MgO with a molar ratio (2:1) was reacted at 1723K for 2.5h in an vacuum atmosphere of 1(±0.05) KPa. Then the mixture was cooled in different flow rates of argon atmosphere at a constant cooling rate. The condensation products were collected and characterized by XRD and SEM/EDS. The results show that increasing the argon flow rate enhanced diffusion of magnesium vapor and CO, meanwhile, diluted the CO concentration resulting in restraining the adverse reaction. The recovery rate of the condensation product reached a maximum of 95.6% with magnesium (strip-like) purity of 94.8% when the argon flow rate was 3.5 L/min.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Lan Hong, Hong Yong Sohn, and Masamichi Sano, Scandinavian Journal of Metallurgy 2003;32:171–176.
R.E. Brown, Light metal age, 1996.VOL.8.
Geoffrey Brooks, Simon Trang, and Michael Nagle, JOM ,2006 May.
R. Winand, M. van Gysel, A. Fontana, L. Segers, and J-C. Carlier. Recycling of Metalliferous Materials. 99(1990):C105.
Rao YK, Metall Trans,1971:2:1439.
Chengbo YANG, et al, MEMS (2012):475–477.
G.J. Kipouras, and D.R. Sadoway. Advances in Molten Salt Chemistry 6. 1987,pp.127–209.
A. Froats, et al, Light metal, Metallurgical Society of AIME, (NY,1980),969–79.
S. Ramakrishnan, et al, Resources Conservation and Recycling 2004, 42,pp.49–64.
G. Brooks, et al Mineral Processing and Extractive Metallurgy,2007,vol 116, NO 1.
Li RongTi, and Pan Wei, et al, Metallurgical and Materials Transactions B.(Volume 34B,August 2003)-433.
M. NUSHEH, and H. YOOZBASIADEH, et al ISIJ International, Vol.50(2010),NO.5,pp.668–672.
Benny T, and Kuan N, et al, Chemical Engineering Science 87 (2013) 23–39.
DAI Yong-nian, and YANG Bin et al, The vacuum metallurgy of nonferrous metals [M]. Beijing: Metallurgical Industry Press, 2000: 65–72. (in Chinese).
YANG TIAN, and TAO QU, et al, Metallurgical and Materials Transactions B. (Volume 43b,JUNE 2012) 652–657.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2015 TMS (The Minerals, Metals & Materials Society)
About this chapter
Cite this chapter
Bin, G., Wang, Y., Wang, S., Liang, X. (2015). Effect of Argon Flow Rate on the Condensation of Magnesium Vapor from Carbothermic Reduction of Magnesia. In: Manuel, M.V., Singh, A., Alderman, M., Neelameggham, N.R. (eds) Magnesium Technology 2015. Springer, Cham. https://doi.org/10.1007/978-3-319-48185-2_14
Download citation
DOI: https://doi.org/10.1007/978-3-319-48185-2_14
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-48611-6
Online ISBN: 978-3-319-48185-2
eBook Packages: Chemistry and Materials ScienceChemistry and Material Science (R0)