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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 13    No. 3    June 2003

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Basicity for blast furnace-type slag
containing B2O3 and high MgO
HUANG Zhen-qi(黄振奇), CAI Ya-min(蔡亚旻),
ZHU Wen-fei(朱文非), YANG Zu-pan(杨祖磐)

School of Materials and Metallurgy,
Northeastern University, Shenyang 110006, China

Abstract:There is quite abundant resource of ludwigite ore in Liaoning Province of China. Content of MgO in the slag of pyrometallurgical separation of boron from iron is much higher than that in the ordinary slags. Through the equilibrium partition ratio of sulfur LS between the metal and the slag in an atmosphere of CO-N2, the acidic coefficients for B2O3 and the basic coefficients for MgO were estimated. The basic formulae were given for the blast furnace-type slag containing B2O3 and high MgO.

 

Key words:  basic formula; blast furnace-type slag bearing B2O3 and MgO; equilibrium partition ratio of sulfur

ISSN 1672-7029
CN 43-1423/U

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