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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 5    No. 4    December 1995

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CRYSTALLIZATION OF THE BORON COMPONENT BEARING MgO-B2O3-SiO2 SLAG
Zhang Peixin; Guo Zhenzhong; Lin Hong; Sui Zhitong

Department of Nonferrous Metallurgy; Northeastern University; Shenyang 110006

Abstract:The crystallization and kinetics of the boron component bearing MgOB2O3-SiO2 slag with TiO2 and ZrO2 as additive agents were investigated by X-ray diffraction,differential thermal analysis,scanning electron microscopy and infrared ray spectrum.The results showed that additive TiO2 and ZrO2 decreased the activation energy of crystallization and improved the phase separation,that make the crystalline phase precipitate easily,the efficiency of extraction of boron(EEB) was promoted.Meanwhile,the structure of slag was modified by addition of TiO2.

 

Key words: slag containing boron; additive agent; crystallization

ISSN 1672-7029
CN 43-1423/U

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