New method for viscosity estimation of slags in the CaO-FeO-MgO-MnO-SiO2 system using optical basicity

被引：14

作者：

Shu, Q. F. ^{[1
]}

Hu, X. J. ^{[1
]}

Yan, B. J. ^{[1
]}

Zhang, J. Y. ^{[1
]}

Chou, K. -C. ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, Sch Met & Ecol Engn, Dept Met Phys Chem, Beijing 100083, Peoples R China

来源：

IRONMAKING & STEELMAKING | 2010年 / 37卷 / 05期

基金：

美国国家科学基金会;

关键词：

Viscosity; Silicate slag; Estimation model; Optical basicity; SILICATE MELTS; MOLTEN SLAGS; MODEL;

D O I：

10.1179/030192310X12683075004717

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Several models have been proposed to estimate the viscosity of molten slag using optical basicity. In this work, a new method for viscosity estimation of silicate slag using optical basicity has been proposed. The temperature dependence of viscosity was described by the general Arrhenius equation, and the contributions of bridging oxygen (O-0), non-bridging oxygen (O-) and free oxygen (O2-) to viscous activation energy in this equation were taken into account. Compositions of three types of oxygen were calculated from optical basicity using the Toop-Samis model combined with the method proposed by Ottonello and Moretti. The present method has been applied to estimate the viscosity of silicate slag in CaO-FeO-MgO-MnO-SiO2 system. The comparison between estimated and experimental values shows good agreements, with a mean deviation of similar to 20%.

引用

页码：387 / 391

页数：5

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